12 PROCEEDINGS OP THE ISTATIONAL MUSEUM vol.72 



HEMITELES (APTESIS) HEMIPTEKUS (Fabricius) 



Synonym. — Hemiteles insignipennis Schmiedeknecht. (New synonymy.) 



There are before me three females reared from cocoons of Phytono- 

 tnus posticus and four females reared as secondary parasites of 

 Pyrcmsta nuhilalis^ two of the latter through Microgaster tibialis Nees 

 and two through Euli7)ineria (yrassifeTmir (Thomson). 



One of the three from PhytonowMS is fully winged and the two 

 from Eidimneria are only slightly brachypterous, but are clearly not 

 specifically different from the short-winged specimens. These three 

 run to, and the fully winged one agrees perfectly with, Hemiteles inr- 

 signipennis Schmiedelmecht. 



SYRPHOCTONUS FOUTSI, new species 



An anomalous species, perhaps generically distinct from SyrphoG- 

 tonus, chiefly remarkable for its somewhat elevated clypeus, which is 

 apically entire and not medially sulcate, and, in the female, for its 

 apically attenuate abdomen. The nearest approach in the tribe to 

 this form of clypeus is found in Syrphoctonus vertehratus Cushman, 

 in which the clypeus, though of about the same form otherwise, has 

 a fairly distinct median sulcus. The female of the latter species is 

 unknown. 



Female. — ^Length 6 mm. ; antennae 4 mm. 



Head shining with only the face and cheeks opaque ; temples con- 

 vexly narrowed; frons medially concave; ocell-ocular line a half 

 longer than diameter of an ocellus ; vertex medially elevated, slightly 

 impressed next to eyes; face about twice as broad as long, convex, 

 with rather dense very short pubescence; clypeus twice as broad as 

 long, straight from base to apex, convex from side to side, the apex 

 elevated, subtruncate and without a median sulcus; malar space 

 slightly shorter than basal width of mandible ; flagellum filiform, all 

 joints distinctly longer than thick, first a half longer than second. 

 Thorax hardly twice as long as deep, polished, sparsely and weakly 

 punctate ; propodeum rather coarsely rugoso-punctate, opaque ; apical 

 slope weakly impressed on either side of middle; second abscissa of 

 cubitus twice as long as intercubitus ; first brachial cell as broad as 

 long, subdiscoideus below middle of postnervulus ; nervellus strongly 

 broken below middle; legs slender, hind tarsus much longer than 

 tibia. Abdomen twice as long as head and thorax, attenuate beyond 

 middle, first two tergites and base of third opaque, rest polished ; first 

 slightly longer than broad, broadest at spiracles; second distinctly 

 longer than broad, longitudinally striate in basal middle, widening 

 slightly toward apex; third to seventh deeply emarginate at apex, 

 each successively smaller ; eighth and genitalia very small. 



Black, with the following markings white : Face with short orbital 

 extensions above (in paratype the middle of face nearly to clypeus 



