Anoplius ithaca (Banks 1912)

Anoplius (Anoplius) ithaca (Banks)
Psammochares ithaca Banks, 1912, Jour. N. Y. Ent. Soc, 19: 224 [Type: 9, New York: Ithaca, 1-7 July (MCZ, no. 13, 699)].
Anoplius selkirkensis Banks, 1919, Bull. Mus. Comp. Zool., 63: 234 [Type: 2, British Columbia: Selkirk Mts., 14 Aug. 1905 (J. C. Bradley) (CU, no. 685)]. Synonymy by Evans, 1951.
Anoplius {Anoplius) ithaca Evans, 1951, Trans. Amer. Ent. Soc, 76: 336-339.
Female. — Length 5.5-11 mm. Black; wings subhyaline basally, becoming rather heavily clouded toward the apex; body with a rather variable amount of silvery pubescence, usually silvery at least on the front, hind coxae, and posterior part of the propodeum. Body, including the propodeum, with moderately abundant erect hair. Clypeus about 3 X as broad as high; MID .56-. 62 X TFD; eyes distinctly convergent above, UID .85-.90 X LID; vertex nearly straight across. Antennae elongate, third segment much longer than first two together, equal to from .70 to 1.0 X UID. Legs rather strongly spinose. Claws of each pair asymmetrical, the inner claw being larger than the outer and virtually as long as the last tarsal segment; inner ray of claws subparallel to outer ray but much shorter. Stigma very large; SMC3 wide above.
Male. — Length 4.5-9 mm. Black; wings hyaline or nearly so, fore wing darkened apically; head and thorax usually extensively silvery-pubescent. Body moderately hairy, the propodeum usually somewhat hairy, but the venter with only sparse, suberect setae. Clypeus 2.6-3.0 X as wide as high; MID .61-. 66 X TFD; eyes diverging slightly if at all above. Last segment of front tarsus less than twice as long as its maximum width; claws of each pair only slightly unequal. SGP very wide, strongly folded along the median line so as to form a roof-like surface beneath the genitalia. Genitalia with the parameres unusually short, only about half the length of the other appendages; digiti angled midway,
long and tapering beyond the angulation; parapenial lobes slender, nearly as lcng as the aedceagus (see figs. 15 and 16 in Dreisbach, 1950; also fig. 107 in Evans, 1951).
Distribution. — Throughout most of North America, but confined to the shores of streams and other bodies of water, especially where there are stones. The known range extends from the Yukon to Maine, south to Georgia, northern Mexico, and California. (Map 59.)
Mexican specimens examined. — ■ 2 2 2 . Nuevo Leon: 1 2 , 6 mi. S Monterrey, 12 Aug. 1959 (AM & LS) [UCD]; 1 2 , General Teran, 19 July 1954 (RRD) [MSU].

Anoplius ithaca is a species of spider wasp in the family Pompilidae.