Fungus Gnats (Mycetophilidae) - 54 Species, Identification & Facts

Docosia dichroa

Identification: Black thorax, yellowish-orange abdomen with black tip (males) or orange tip (females). This species cannot be identified without examination of genitalia. Several species (fimbria, paradichroa, and walpurga) as well as at least one u

Leia bivittata

Identification: From Johannsen 1911: "Length 3.75 mm. Honey yellow; trunk bilineate, and tergum with 2 series of black punctures. Body rather pale honey-yellow; antennae black at tip; stemmatae very distinct, in a curved line; thorax a little hairy,

Leia opima

Identification: From Johannsen 1911: "Head yellow, vertex and upper half of occiput fuscous; antennae fuscous, scape, first flagellar joint and palpi yellow. Thorax including scutellum yellow; dorsum shining, on each side with large, black, oval spot

Leia sublunata

Identification: Similar to L. bivittata , but with smaller black spots on dorsum of thorax.

Leia varia

Identification: From Johannsen 1911: "Body yellow; head black between the eyes, which, and the feelers are also black; the latter are yellow at the base; chest except the fore part, black; segments of the abdomen bordered with black, which color exte

Leia ventralis

Identification: From Johannsen 1911: "Head black; antennae brown, 3 basal joints and the palpi yellow. Thorax and abdomen shining black, venter with segments 3 and 4 largely yellow; hairs pale. Coxae, femora, tibiae, and metatarsi yellow remainder of

Leptomorphus magnificus

Identification: "The only extant species of Leptomorphus with R4 that has a completely yellow/orange thorax and abdomen (though abdomen rarely darker on posterior two segments) and foretarsomere I at least 1.5X the length of foretibia."

Leptomorphus subcaeruleus

Identification: "Quite distinct among other species with vein R4 present, body black, legs mostly yellow with femora dark apically and hind tibia yellow basally, antennae completely dark, abdominal tergite 4 sometimes reddish in females." - Dmitry Ga

Mycomya hirticollis

Identification: Genitalia need to be examined for ID. Genitalia extremely similar to M. hirticauda Van Duzee, known from CA, WA, and OR.

Mycomya kaurii

Identification: Using older keys such as Fisher, this species will key towards Mycomya dichaeta but it can be distinguished by the male genitalia (distinct medial process on tergite 9). It is similar to M. woodi Väisänen (known only from Maine).

Mycomya obliqua

Coher states this is one of the most common species in the north and east, and could be the same as the European Mycomya circumdata (Staeg.).

Neoempheria macularis

Identification: Apex of wing darkened; medial vein forks distal of cell R1; tergites 1, 3, 5, & most of 6 darkened.

Paratinia recurva

Paratinia recurva (Paratinia recurva) is a species in the family Mycetophilidae, commonly known as fungus gnats, belonging to the order Diptera (Flies). It is classified within the subfamily Gnoristinae, superfamily Sciaroidea. This species belongs t