456 CONNECTICUT GEOL. AND NAT. HIST. SURVEY. [Bull. 



3. Antennae lo-jointed, with one ring-joint, funicle 4-jointed, 



club 3-jointed 4 



Antennae 8-jointed, with one ring-joint; wings usually with 

 transverse fasciae, the postmarginal vein not well devel- 

 oped; head wider than long; flagel short, compressed, 



fusiform, the joints except the last wider than long 



Closterocerus p. 459 



4. Wings hyaline, immaculate, the front wings almost glabrous, 



not very pubescent, the hairs arranged in more or less ir- 

 regular lines, postmarginal vein not well developed, not or 

 scarcely longer than the very short subsessile stigmal 

 vein; eyes normal; the malar space distinct; head not 

 wider than the thorax in the male; metanotum at most 

 with only a trace of a median carina, smooth and im- 

 punctate; abdomen conically produced, as long as or longer 



than the head and thorax united Omphale p. 456 



Wings banded or with fuscous maculae, postmarginal vein 

 short, the knot of the stigmal vein petiolate ..Astichus p. 457 



5. Scutel without a median longitudinal grooved line 6 



Scutel with a median longitudinal grooved line; antennae 



9-jointed, the funicle 3-jointed in the females, 4-jointed 

 in the males Horismenus p. 458 



6. Antennae 9-jointed; scutel never smooth, always punctate, 



scaly-punctate or reticulate; mesothorax smooth, without 

 lateral carinae, metanotum with a transverse carina a little 



before the apex Derostenus p. 456 



Antennae lo-jointed, with a ring-joint; metanotum with lateral 

 carinae and a median carina .Pleurotropis p. 457 



Derostenus Westwood. 

 °D. antiopae (Packard). Entedon antiopce Packard. Scudder, 

 Butterflies of Nev^r England, PI. 89, Fig. 7. 



Male : body mostly shining black ; antennae with a brown club 

 and funicle; scape, pedicel and ring- joints yellow; scape cylin- 

 drical, flagel hairy; eyes slightly emarginate, not hairy; metano- 

 tum yellow-brown ; scutel without a median groove ; postmarginal 

 vein distinct; all legs yellow except perhaps the coxae, which 

 have not been observed ; abdomen rotund, with a yellow-brown 

 petiole. 



Reared from {Vanessa) Euvanessa antiopa. 



Omphale Haliday. 

 °0. (Euderus) elongatus Ashmead. 



Female : length 2 mm. ; mostly bluish black, with dull metal- 

 lic green, scaly thorax and scutel ; vertex of head transversely 



