Running Crab Spiders (Philodromidae) - 56 Species, Identification & Facts

Apollophanes margareta

Identification: ...has the posterior eye row equidistant (not like Philodromus with the posterior median eyes conspicuously closer to the laterals than to each other), a second, bigger "v" behind the usual small v-mark on the carapace, and 4 big ligh

Evans's Running Crab Spider

Ebo evansae

Ebo evansae is a species of running crab spider in the family Philodromidae. It is found in the United States and Mexico.

Ebo latithorax

Identification: Female epigynum: Ventral: Dorsal: Male palp: Ventral: Lateral:

Philodromus albidus

Males 3.1 to 3.8 mm; Females 4 to 5.4 mm. Prosoma with orange-brown lateral stripes. Opisthosoma yellowish with bright chevrons. Legs pale, greenish. Confirmation of this species: "Requires examination at high magnification in good lighting, typicall

Philodromus anomalus

Identification: Description of female from Schick 1965 (in part): "Abdomen angulate caudolaterally, dorsum largely white, with a typically red caudal band, distinct spiniforms lacking". Palp: Epigynum:

Philodromus aureolus

Very similar to other members of the group and microscopic examination of the genitalia is necessary to confirm identification. Voucher specimens of all species in the aureolus group are essential (P. aureolus, P. buxi, P. cespitum, P. collinus, P. l

Philodromus californicus

Identification: Epigynum: Regarding intraspecific variation: "Re-examination of most of the available material of P. californicus convinces us that this is a variable species in size, color and external genitalia... More specifically, we point out th

Turf Running-spider

Philodromus cespitum

The appearance of this species is less crab-like than the Xysticus , with a narrower head and body and the legs are of a more even thickness. Markings are variable so care has to be taken with identification. Confirmation of this species: "Requires e

Philodromus collinus

Length 4 to 6 mm. Prosoma with broad, dark brown lateral stripes and almost white centre. Legs yellowish grey or brown with black spots. Opisthosoma dorsally with broad median band consisting of large, yellowish white spots. Confirmation of this spec

Philodromus dispar

Philodromus dispar is a type of crab spider and is about 5 mm long. The male is black or dark brown with white edges, the female more beige in colour. Whilst the male is distinctive, the female can look very similar to P. cespitum . Mature males are

Philodromus imbecillus

Philodromus imbecillus is a species of running crab spider in the family Philodromidae. It is found in the United States and Canada.

Philodromus josemitensis

Identification: P. josemitensis has the abdomen obviously acutely angulate at each side. ~ Rod Crawford Palp: Epigynum: undissected/dorsal view of dissected

Philodromus keyserlingi

Identification: Palp: Epigynum: undissected/dissected ventral/dissected dorsal

Philodromus mineri

Philodromus mineri is a species of running crab spider in the family Philodromidae. It is found in the United States.

Philodromus minutus

Philodromus minutus is a species of running crab spider in the family Philodromidae. It is found in the United States and Canada.

Philodromus peninsulanus

Identification: Palp: Epigynum (dorsal/ventral): While epigynum is similar to that of P. placidus , the pattern on the legs is different. P. placidus has dark distal marks on the segments of the legs.

Philodromus cf. pratariae

Philodromus possible-pratariae

Identification: This is a placeholder page for spiders we believe may be Philodromus pratariae .

Philodromus praedatus

Body length male: 3.5 to 5 mm female: 4 to 7 mm. Very variable in colour, usually brown or yellowish brown, marked with spots or blotches. Males often patterned more intensely, sometimes uncoloured dark brown. Prosoma often with broad light median ba

Resplendent Running Crab Spider

Philodromus praelustris

Philodromus praelustris is a species of running crab spider in the family Philodromidae. It is found in the United States and Canada.

Philodromus quercicola

Identification: Epigynum:undissected/dissected ventral/dissected dorsal

Philodromus rodecki

Philodromus rodecki is a species of running crab spider in the family Philodromidae. It is found in the United States and Canada.

Philodromus spectabilis

Identification: P. spectabilis has 8 white triangles around the rim of the carapace (at each leg base) pointing inward, and the intersegmental membranes at each leg joint are conspicuously bright shiny white; the abdomen is purplish with a series of

Philodromus verityi

Identification: "Body mahogany red in life (fading to dull red in alcohol), lacking contrasting markings".

Philodromus vulgaris

Identification: ** These spider have been placed here based in images and information found in Spiders of the Eastern US, A Photographic Guide . However, we haven't been able to find a reference that states this is the only Philodromus species that h

Rhysodromus mysticus

Identification: Male : Left palp: ventral view/retrolateral view

Thanatus vulgaris

Identification: Look for three prolateral spines on femur I. Voucher specimen: male Often found in cricket shipments.

Tibellus chamberlini

Tibellus chamberlini is a species of running crab spider in the family Philodromidae. It is found in the United States and Canada.

Tibellus duttoni

Identification: This species has four pairs of ventral macrosetae on tibia I whereas T. asiaticus , T. oblongus and T. maritimus have only three pairs. T. chamberlini also has four pairs of ventral macrosetae but also has paired lateral stripes. See

Tibellus oblongus

Quite a large (about 10 mm) and elongate pale creamy brown spider with various markings, and usually a darker stripe down the centre of the abdomen. The males look similar to the females although their bodies are slimmer. Similar to T. maritimus , wh