1915 New Chalcidoid Hymenoptera 283 
8. Aphidencyrtus aspidioti new species. 
Female: Length, 1.45 mm. 
Differs most notably from all the species of the genus in having 
funicles 5-6 white. Dark metallic green, the wings hyaline; tarsi 
(except distal joint), cephalic and caudal knees, distal half of cephalic 
tibize, base and tips of caudal tibiz and all of middle tibiz excepting a 
rather broad cinctus a rather short distance below the knee, pure white. 
Funicles 1-4 subequal, distinctly wider than long, 5 and 6 each distinctly 
larger, 6 subquadrate. Club nearly as long as the funicle and some- 
what wider, the middle joint quadrate. Marginal vein 21% times longer 
than wide, nearly twice the length of the stigmal, the latter a little 
longer than the postmarginal. Third tooth of mandible truncate but 
its distal margin concave, the outer two teeth longer than the inner. 
Cheeks as long as the eyes. Axille barely touching. Thorax scaly. 
Venation dusky yellow. Hind wings with about twelve lines of discal 
cilia. Agrees in color with siphonophore Ashmead except funicles 5 
and 6; in the latter funicles 1-4 are subquadrate, the frons is a little 
broader. 
Described from three females reared from Aspidiotus 
perniciosus, Lansing, Michigan, February 9, 1914. Experiment 
1001. 
Type: Catalogue No. 19383, U. S. N. M., a female on a 
slide. 
A phidencyrtus aphidiphagus (Ashmead) and A. siphon- 
ophore (Ashmead) are the same (types compared). Encyrtus 
inquisitor Howard is a very closely allied species, but the band 
on the middle tibiz is much longer and the axille are separated. 
In A. aphidiphagus, the male antennez are 9-jointed, the club 
solid, the funicle joints clothed with soft hairs, the scape short, 
compressed; funicle joints cylindrical oval, each about a half 
the length of the club. There is a pair of the last species in 
the U.S. N. M., from Washington, D: C. and two males from 
the same place reared from Szphonophora liriodendri, August 
22, 1894. The type of stphonophore Ashmead bears Washing- 
ton, D. C. as the type locality. 
A phidencyrtus webstert (Howard) differs from siphonophorae 
in having the band on the middle tibie as broad as half the 
length of that joint (female). There are specimens in the 
U. S. N. M. from Columbus, Ohio and a male reared from 
Siphonophora avene. 
