ART. 4. 



NEW SPECIES OF ICHNEUMOlSr-FLIES CUSHMAN. 



The male differs from female only in being slightly more slender. 

 Sheath of genitalia very large, abruptly narrowed near apex. 

 Type. — Arachnoleter sioezeyi., new species. 



ARACHNOLETER SWEZEYI, new species. 



Female. — Length, 5 mm. ; antennae, 4 mm. 



Head shagreened, the temples siibpolished ; temples convex ; cheeks 

 buccate; face twice as long as broad; malar space as long as basal 



Fig. 1. — Arachnoletee .swezeti, new species : a, Dorsal view showing general form 



AND wing venation. 6. HEAD, CEPHALIC VIEW. C. FlEST ABDOMINAL SEGMENT, LATERAL 

 VIEW. 



width of mandible ; ocell-ociilar line nearly twice the diameter of an 

 ocellus, the postocellar line even longer; basal joint of flagellimi five 

 times as long as thick at apex. Thorax shagreened; notauli and 

 sternauli foveolate; metapleiirum and propodeum rugose, the pro- 

 podeum less strongly so dorsally, areola hexagonal and broader be- 

 hind than before. Abdomen shagreened; first tergite largely irregu- 

 larly rugose; ovipositor sheath two-thirds as long as first tergite. 



Head, thorax, and first and apical tergites black; tergites 2-5 

 ferruginous; flagellum brown, scape and pedicel testaceous; clypeus 

 ferruginous; mandibles and palpi pale yellowish testaceous; legs 

 testaceous, middle and hind tibiae and hind femur apically fuscous. 



