Coleoptera1711 species

Family Snout and Bark Beetles (Curculionidae)

Curculionidae is a family in the order Coleoptera. Browse 1,711 named species recorded in this family, or open an individual profile for its available identification and natural-history information.

Species in Curculionidae (1,711)

Curculio venosus

A fairly large brown weevil, with females measuring around 7mm. It is quite similar to some other members of this genus and care should be taken with identification. Raised ridge of "roof-like scales" forming an obvious raised ridge at the elytral ap

Cylindrocopturinus pictus

Identification: The female is rather dull while the male is more shining. The vestiture of the prothorax is not uniform some of the scales are longer and there are here and there a few very narrow, hair-like scales. (Schaeffer 1908)

Sunflower Stem Weevil

Cylindrocopturus adspersus

"things under that name [ C. adspersus ] probably represent more than one species" --H.A. Hespenheide, pers. comm. to =v= 9.ii.2012

Cylindrocopturus armatus

Identification: agrees very nearly with the description of C. mammitllatus Lec., from Southern California, differing from it in having a common, fulvous and white, /\-shaped line on the elytra below the base and a transverse white line beyond the mid

Dendroctonus brevicomis

The oleoresin of pine bark is rich in volatile terpenes which attract the females who settle to feed on the bark. Once settled they attract males who arrive and release frontalin, which mixes with the female's chemicals (exo-brevicomin and myrcene) t

Mountain Pine Beetle

Dendroctonus ponderosae

A significant forestry pest throughout much of its range.

Douglas-fir Beetle

Dendroctonus pseudotsugae

Deters conspecifics by an antiaggregation pheromone, which is released by each sex at the sonic stimulus of the other sex.

Spruce Beetle

Dendroctonus rufipennis

Identification: Frons closely granulate and coarsely punctate. An important forestry pest.

Derelomus costiger

Identification: shape of elytra mimicks petals of its host, Phoenix reclinata (Arecaceae)

Diaprepes Root Weevil

Diaprepes abbreviatus

Identification: color variable (from gray to yellow to orange to black) Major pest of citrus crops: larvae often girdle the taproot, which may kill the plant and provide an avenue for Phythophora infections. A single larva can kill young hosts while

Dorytomus brevicollis

Identification: Det. Charles O'Brien, 2009 image shows the relative size of the two most common Dorytomus spp. in Texas. Dorytomus brevisetosus Casey is also present in w. TX. Dorytomus brevicollis LeConte - small Dorytomus mucidus (Say) ------- larg

Dorytomus filirostris

A slender, long‑snouted weevil specialised for life on poplars and willows - particularly Black Poplar and Hybrid Black Polar. It is 4-5mm (excluding the long rostrum) and tawny brown with the upper side covered in patchy pale and decumbent (lying fl

Dorytomus ictor

Unless identified by a recognised expert, photographic evidence is required and the specimen should be examined with a microscope. In the comments box, state the key or ID method used. Note the beetle's size and describe the identifying characters. I

Dorytomus longimanus

A brown weevil with light and dark forms. Characteristic long first leg. No additional images available for this species.

Dorytomus mucidus

Identification: (female) Det. M. A. Quinn, 2021 image shows the relative size of the two most common Dorytomus spp. in Texas. Dorytomus brevisetosus Casey is also present in w. TX. Dorytomus brevicollis LeConte - small Dorytomus mucidus (Say) -------

Dorytomus taeniatus

A small weevil with a mottled dark and light brown appearance. Unless identified by a recognised expert, photographic evidence is required and the specimen should be examined with a microscope. In the comments box, state the key or ID method used. No

Dorytomus tortrix

About 5 mm long, this is a reddish brown weevil. There are other very similar species in this genus which means that detailed examination of an actual specimen is generally needed to identify the exact species. A red box around the image indicates th

Dryophthorus americanus

Dryophthorus americanus (Dryophthorus americanus) is a species in the family Curculionidae, commonly known as snout and bark beetles, belonging to the order Coleoptera (Beetles). It is classified within the subfamily Dryophthorinae, tribe Dryophthori

Dryoxylon onoharaense

Identification: see earliest record in our area: LA 1982

Eisonyx crassipes

Identification: Det. H. R. Burke, 2002 Type Locality: Tex.

Eisonyx picipes 0

Eisonyx picipes

Identification: Body distinctly widest at middle (Fig. 12); hypomeron not carinate, with punctures nearly round; elytral striae deepest and most distinct basally Described from one specimen collected at Nashville, Tennessee, in September in a strawbe

Epicaerus lepidotus

Described from eight specimens collected by E. A. Schwarz at San Antonio, Texas, May 9 and 10. It is also at hand from Cotulla and Brownsville, Texas. (Pierce 1910)

Brown Leaf Notcher

Epicaerus mexicanus

a Mexican species extending into Texas at Brownsville (Pierce, 1910)

Episcirrus brachialis

Identification: Legs long and slender, thighs armed with one tooth; front thighs of male extending much beyond the head. Type Locality: Columbus, Austin Co., TX

Eubulus obliquefasciatus

Eubulus obliquefasciatus (Eubulus obliquefasciatus) is a species in the family Curculionidae, commonly known as snout and bark beetles, belonging to the order Coleoptera (Beetles). It is classified within the subfamily Cryptorhynchinae, tribe Cryptor

Eubulus parochus

Identification: Most individuals are easily recognized by their larger size but small specimens are difficult to separate from larger E. bisignatus

Eucalandra mexicana

Identification: Last couplet: Pronotum (Fig. 7) deeply, very densely and uniformly punctate; body lacking any broad flat scales; elytra with intervals deeply, densely uniformly punctate; front tibia with subapical tooth similar in size and form to ap

Eudiagogus pulcher

Identification: Pronotum with transversal pale band. Outer elytral band linear, branched to side in about middle:

Eudiagogus rosenschoeldi

Identification: pronotum lacking transversal band, elytral outer band mottled Det. M. A. Quinn, 2012

Milfoil weevil

Euhrychiopsis lecontei

The species lives submerged in standing, or slow running waters.

Euophryum confine

2.5 to 3.6mm. Elongate, parallel and very convex, entirely dark brown or with legs and humeral spot lighter. Upper surface with very fine and sparse pubescence. Head behind eyes smooth and very finely punctate, rest of head coarsely punctate, eyes ve

Eurhoptus pyriformis

Eurhoptus pyriformis (Eurhoptus pyriformis) is a species in the family Curculionidae, commonly known as snout and bark beetles, belonging to the order Coleoptera (Beetles). It is classified within the subfamily Cryptorhynchinae, tribe Cryptorhynchini

Eurhoptus rileyi

Type Locality: USA: TEX: Hidalgo Co. / Bentsen R.G.V.S.P. (site 1) / 26.17830°N, 98.38577°W / IX.6–19.2008, FIT-ground / J. King & E. Riley – 0104 / cedar elm forest

Yellow Starthistle Hairy Weevil

Eustenopus villosus

introduced (CA 1990) to control the invasive Yellow Star Thistle. The weevils can look very different once their vestiture is lost.

Polyphagous Shot Hole Borer

Euwallacea fornicatus

Identification: virtually indistinguishable from others in the "fornicatus" clade, however... if the " E. fornicatus " you have are from San Diego or Tijuana River they are E. kuroshio , and the ones from the Los Angeles area are E. fornicatus . Thos

Euwallacea interjectus

earliest record in the Western Hemisphere: FL 2011 ( Rabaglia 2011 )

Hairy Spider Weevil

Exomias pellucidus

It is 3 to 4 mm in length with long upright hairs on the elytra which are studded with rows of holes. The pronotum is also pitted. Colour varies from a yellowy brown to almost black. Unless identified by a recognised expert, photographic evidence is

Gerstaeckeria fasciata 0

Gerstaeckeria fasciata

Identification: Elytral color black with white humeral spots and caramel or tan subapical band; elytra about 1.5 times wider than pronotum Type Locality: Buck Key, Monroe Co., Florida

Gerstaeckeria hubbardi

Identification: Elytral color pattern predominantly black and white; length 7.5 to 9.5 mm; elytra nearly twice as wide as pronotum Det. R.E. Woodruff Type Locality: Crescent City, Florida

Gerstaeckeria knullorum

Type Locality: Holotype, female, Huachuca Mts., Ariz. VIII-12-50, DJ & JNK. in (OSU). DJ & JNK found this insect in large numbers on the light colored walls of a cabin in Miller Canyon, Huachuca Mtns., Ariz.

Gerstaeckeria unicolor

Identification: Its erect curved scales on the dorsum separates it from most other species, except tricolor . Type Locality: San Luis Potosi, Mexico.

Glaphyrometopus ornithodorus

Described from five more or less perfect specimens taken from the stomach of a meadow lark, Sturnella magna negleda , which was shot at Navasota, Texas, December 12, 1907 in an open prairie by Mr. V. Bailey. (Biological Survey, No. 57705.) The unusua

Glyptobaris lecontei

Identification: Combination of scale vestiture on elytra and sculptured pronotum distinctive Det. V. Belov, 2013

American Utilizable Wood Bark Beetle

Gnathotrichus materiarius

often attacks pines killed by Ips spp. in the south

Gnathotrichus pilosus

Identification: quite hairy unlike most other N. Amer. Gnathotrichus . (comment: Rick Buss, 2010)

Eucalyptus Snout Beetle

Gonipterus scutellatus

Eucalyptus Snout Beetle (Gonipterus scutellatus) is a species in the family Curculionidae, commonly known as snout and bark beetles, belonging to the order Coleoptera (Beetles). It is classified within the subfamily Gonipterinae, suborder Polyphaga,

Graptus triguttatus

Graptus triguttatus is a large (6 to 8 mm), distinctively marked species with pale brown elytra that are marked with two creamy-white blotches on each elytron, the ones at the rear often forming a ‘V’ pattern. Unless identified by a recognised expert

Gymnetron villosulum

A small brown weevil 2-3mm, with long hairs on the pronotum and elytra. The larvae feed within galls formed in the seed-capsules of water speedwells, usually pink water-speedwell, Veronica catenata , but also Veronica anagallis-aquatica , Veronica be

Hadroplontus litura

Heteroborips seriatus

Identification: Elytra with a pair of pit mycangia parallel to sides of scutellum ―quite visible, although often filled with gunk: earliest record in our area: MA 2005

Hylastes macer

Identification: “unique in having the entire surfaces of the pronotum and elytra finely reticulate”

Hylastes opacus

Identification: Couplet #3 in Wood’s key to the species of Hylastes of North and Central America was modified in Hoebeke to facilitate identification of H. opacus . earliest record in our area: NY 1987

Hylastes porculus

Adults are strongly attracted to freshly cut lumber. ( 3 )

Eastern Ash Bark Beetle

Hylesinus aculeatus

The most commonly encountered ash-breeding bark beetle in eastern North America (T. Atkinson, pers. comm. to MAQ, 2011) at high risk of endangerment due to the EAB ( 4 )

Western Ash Bark Beetle

Hylesinus californicus

at high-moderate risk of endangerment due to the EAB

Hylesinus pruinosus

Identification: Similar to the more common H. aculeatus , but larger, lacks distinct asperites on pronotum, and coarse crenulations on elytral interstriae at high risk of endangerment due to the EAB

Ash Bark Beetle

Hylesinus varius

Hylesinus varius (formerly Leperisinus fraxini ) and H. wachtli (formerly L.orni ) can only be distinguished by microscopic examination. H. varius has coarse suberect setae on the sides of the elytra that are clearly visible from above and a more elo

Large Pine Weevil

Hylobius abietis

This large weevil (10 -13mm) has orange or creamy-yellow bands on the elytra across a dark background. Unless identified by a recognised expert, good photos are required that show the key ID features. Also state the beetle's size in the comments box.

Pales Weevil

Hylobius pales

Can be a pest in Chrismas-tree and other pine plantations. The first evidence of attack is a series of small holes/pits in the bark ( 5 )

Hylobius transversovittatus

introduced in the US from Europe in 1992 to control purple loosestrife; released in NY-VA to MT-CO & WA-OR. Colonization of these introduced populations appear to have been successful . No indication that it feeds on other plants.

Egyptian Alfalfa Weevil

Hypera brunnipennis

Identification: close to H. postica , no reliable structural differences have been found except slight but consistent mandibular characters of the adult

Hypera meles

A medium-sized, 3.9 to 4.8 mm, weevil with strongly rounded pronotum and parallel-sided elytra, usually showing a light and dark brown elytral pattern which may vary in intensity. Unless identified by a recognised expert, photographic evidence is req

Lesser Clover Leaf Weevil

Hypera nigrirostris

3 to 4 mm, rostrum or beak is three times as long as it is broad and notched at its base. The eyes are large, taller than wide and non-protuberant. The elytra can be greenish-gold or coppery brown, both being the result of the presence of scales. Leg

Clover Leaf Weevil

Hypera postica

Length 3 to 5.5 mm. The adult is covered in cream and brown scales (covering a black body) with recumbent (leaning back) seta along the elytral intervals. The scales are bifid, divided to around two thirds their length. The pronotum is no more than 1

Hypera rumicis

Size 4 or 5 mm. A pale buff coloured weevil with variable darker brown markings on the elytra. Has flat scales and a few flattened bristles. Usually found on docks. See ID guidance below for more details. Unless identified by a recognised expert, goo

Hypothenemus californicus

Identification: Distinguished from other members of the genus in our area by the combination of coarse, deep punctures on posterolateral area of pronotum, slender body form, and long slender interstrial scales earliest record in our area: CA 1895

Hypothenemus miles

Identification: Distinguished from all other American Hypothenemus by the narrowly produced, hornlike, anterior marginal asperity, with no other marginal teeth.

Isochnus sequensi

A tiny (2.0-2.5mm) black weevil with a white scutellum, pale tarsi and tibiae and yellow/red fore and mid femora. The antennal funiculus is six-segmented. The larvae feed on willow leaves, forming brown blotch mines. The adult must be reared out to i

Isodacrys ovipennis

Identification: Most similar to I. burkei , but no ocular tooth on the prothorax. Elytral intervals 2 & 5 tumid at apex. Lectotype: Esperanza Ranch, Brownsville, Tex. VII.28, Brooklyn Museum Collection 1929

Isodrusus debilis

First US record reported by Green (1920) from the Davis Mountains of west Texas.

Laemosaccus burkei

Identification: Frons with dense, white setae, obscuring area between eyes and on rostrum only above antennal insertions; Red spots on elytra usually >0.5 length of elytra frequently collected southwestern and Mexican member of the L. nephele group w

Laemosaccus clytrinoides

Type: Arizona: Cochise Co., Chiricahua Mts., E Turkey Creek, 6.5 mi. W Portal, 6400′, 31°54-55′N 109°15′W, 16.07.1981, H. A. Hespenheide, on Quercus sp. (USNM).

Laemosaccus nephele

Identification: as compared to L. obrieni , the sympatric eastern species, L. nephele tends to be larger, with maculae reaching the elytral base and lateral margin, and pronotal punctures coarse and non-coalescing

Laemosaccus obrieni

Identification: among the two eastern spp., obrieni is usually smaller than L. nephele ; has smaller posthumeral spots (not reaching elytral base or lateral margin) and finer pronotal punctures confluent on anterior half (vs coarser, separate punctur

Laemosaccus vaurieae 0

Laemosaccus vaurieae

Identification: last key couplets: Species usually >4 mm; with conspicuous, strong teeth on elytral intervals 3 at middle and 5 beyond middle; rostrum 1.5X as long as depth of eyes; aedeagus tapering, acute, with black central region. Anterior surfac

Canada Thistle Bud Weevil

Larinus carlinae

introduced to control invasive thistle in the 1960s (was later found to infect some native thistles)

Seedhead Weevil

Larinus minutus

Identification: brown-grey weevil with a very large, bulbous snout... When the adults first emerge from the knapweed seedhead they are light grey with some yellow fuzz on their bodies. Image of adult and damage to seedhead

Leiosoma deflexum

A small (3 mm) blackish weevil with studded elytra and a rather squat appearance. Unless identified by a recognised expert, photographic evidence is required and the specimen should be examined with a microscope. In the comments box, state the key or

Lignyodes adamanteus

Identification: Det. H. R. Burke, 2007 Type Locality: Corpus Christi, (Rodd Field), Nueces Co., Texas, 27 Mar 1973

Lignyodes baboquivariensis

Identification: nearer L. pallidus (LeConte) than any other congener, differs in shape, vestiture, yellow humeral areas, elytral tubercles, form and vestiture of protibiae Type Locality: Presumido Pass, Baboquivari Mts., Ariz., VII-12, in E. L. Sleep

Lignyodes varius

Identification: Easily distinguished by the different color of the pubescence, the more obtuse elytral callus, and the absence of the black sutural spot. Type Locality: One male, Texas, Belfrage.

Linogeraeus capillatus

Identification: recognized by the long first desmomere that is shared in the study area only by L. hospes, a species with a different rostrum. The male possesses straight, peg-shaped prosternal spines and blunt, distally flattened metatibial spines.

Linogeraeus finitimus

Identification: one of three similar spp. w/ homogeneous vestiture. spmns recognized by the bulky shape of the pronotum, the laterally compressed rostrum, and the miderately long prosternal spines in the male. Type coll'ed by Wickham in Dallas, TX

Linogeraeus neglectus

Identification: Many L. neglectus can be recognized readily by the presence of dark scales in the usually yellowish dorsal vestiture

Liophloeus tessulatus

Reaching about 10 mm in length this is a buff or pale brown weevil with darker speckles on the elytra. Unless identified by a recognised expert, good photos are required that show the key ID features. Also state the beetle's size in the comments box.

Lipancylus cracens

known from southmost Texas since 1975, but only recognized as a new species in 2012. 3 records from Bentsen-RGV SP (Type Locality) and Santa Ana NWR, Hidalgo Co., TX

Listroderes costirostris

L. costirostris is currently restricted to CA and rarely from western AZ. All other North American vegetable weevil specimens are currently L. difficilis [that name will be changed soon], and are misidentified in most collections as L. costirostris .

Vegetable Weevil

Listroderes difficilis

Identification: nearly identical in all external characters to L. costirostris ; males are "readily distinguished" by ædeagus but extremely rare earliest record in our area: MS 1922

Listronotus appendiculatus

Listronotus appendiculatus (Listronotus appendiculatus) is a species in the family Curculionidae, commonly known as snout and bark beetles, belonging to the order Coleoptera (Beetles). It is classified within the subfamily Cyclominae, tribe Listroder

Listronotus dietzi

Identification: Photo of syntype @ https://mczbase.mcz.harvard.edu/guid/MCZ:Ent:1938

Listronotus pallidus

"A rare species, known only from 3 type specimens." --C.W. O'Brien, 2010

Listronotus porcellus

Identification: Nov 2025: Highly doubtful L. porcellus can be identified from an image without genitalic dissection.

Listronotus squamiger

Identification: Hind tibial spur with basal tooth; elytra with odd intervals elevated, some connections with transverse wrinkles, though variable; single median carina on rostrum; some females have the elytra produced as in L. caudatus (Henderson 194

Lixus asper

Identification: 2nd joint of antennal funiculus shorter than next two combined

Rhubarb Weevil

Lixus concavus

Identification: deep depression at the pronotal/elytral base

Lixus maritimus

Identification: resembling L. perforatus and semivittatus , but less slender

Lixus semivittatus

AZ in April numerous mating pairs on Baccharis salicifolia stems

Lymantes nadineae

Identification: Eyes fully lacking, ocular swelling not evident. Allotype female (CMNC), Travis County, Tooth Cave, 19 May 1965, T. C. Barr. Type Locality: Texas: Williamson County, Electro-Mag Cave, 27 Dec 2006, P. Paquin, C. Crawford, K. White, fou

Lymantes scrobicollis

Lymantes scrobicollis (Lymantes scrobicollis) is a species in the family Curculionidae, commonly known as snout and bark beetles, belonging to the order Coleoptera (Beetles). It is classified within the subfamily Molytinae, tribe Lymantini, suborder

Lymantor decipiens

The adults and larvae reportedly feed on certain black wood fungus which are always present in dead wood.