1970] 
Evans — Spider Wasps 
307 
pass to the eye tops; pronotum with a central black spot, this spot 
with a bluish sheen; both dark and light areas of the front and 
vertex with a violet sheen; metasoma beyond basal segment fuscous, 
with weak violet reflections; antennae dusky ferruginous, legs also 
of this color but femora rather strongly infuscated above; fore wings 
fuscous, the apical 0.1 contrastingly white. Body clothed with a 
delicate silvery to cinereous pubescence, but with no erect setae 
except for a few on the clypeus and on the front coxae. Clypeus 
2.5 X as wide as high; first four antennal segments in a ratio of 
about 15:5:19:18, segment three 4 X as long as its apical width ; 
middle interocular distance .58 X transfacial distance; upper inter- 
ocular distance .78 X lower interocular distance; ocellar tri- 
angle compact, ocello-ocular distance nearly twice the postocellar 
distance; temples, in lateral view, somewhat more than half as wide 
as the eyes. Pronotum rounded gently, not as convex as in violaceus, 
mesoscutum small and nearly flat, not nearly as prominent as in 
that species; propodeum elongate, gently arched. Fore wings reach- 
ing to base of second metasomal tergite, in the form of a long, 
linear stalk which slightly exceeds in length a slightly expanded apical 
portion in the base of which a reduced venation can be observed 
(including, apparently, a small stigma and short radial vein; hind 
wings slender, pointed, reaching to the anterior margin of the 
propodeum. Legs very slender, spined much as in violaceus , but the 
middle tibiae slightly more strongly spinose and the apical tarsal 
segments with one or two weak spines beneath. 
Remarks. — This specimen was figured in The Insects of Austra- 
lia , p. 930, fig. 37.28B. This line drawing, by T. Binder, is small 
but essentially correct in all details. When it was drawn the 
specimen was apparently complete, but it is now lacking most of 
the hind legs. 
Literature Cited 
Arnold, G. 
1932. The Psammocharidae of the Ethiopian region. Part II. Ann. 
Transvaal Mus., 15: 41-122. 
Cavill, G. W. K., and P. L. Robertson 
1965. Ant venoms, attractants, and repellents. Science, 149: 1337-1345. 
Commonwealth Scientific and Industrial Research Organization, Divi- 
sion of Entomology. 
1970. The Insects of Australia. Melbourne: Melbourne Univ. Press, 
1029 pp. 
Pavan, M., and R. Trave 
1958. Etudes sur les Formicidae. IV. Sur le venin du dolichoderide 
T apinoma nigerrimum Nyl. Insectes Sociaux, 5: 299-308. 
