AKT. 24. NEW REARED PARASITIC HYMENOPTERA GAHAN. 5 



Male. — Unknown. 

 Type locality. — Rye, New York. 

 Type.— C2.i. No. 24983, U.S.N.M. 

 Host. — Papaipema frigida Smith. 



Described from four female specimens received from Mr. Henry 

 Bird and reared by him October 26. 1917, from the above named host. 



Family ICHNEUMONIDAE. 



GELIS MICROPLITIDiS, new species. 



This species in general appearance is very similar to a Viereck 

 homotype of pettiti Cresson, but differs in having narrower posterior 

 orbits, a distinctly shorter prothorax and mesoscutum, a distinctly 

 set off scntellum. and the posterior thoracic lobe is more convex, 

 with a complete transverse carina. 



Female. — Length 3 mm. Apterous ; head transverse, viewed from 

 above, approximately twice as broad as long; posterior orbits rounded 

 and jibout equal to half the eye width; postocellar line a little longer 

 than ocellocular line; whole head with the usual pezomachine sculp- 

 tuie; antennae rather short, 19-jointed; thorax sculptured like the 

 head but a little more strongly so; mesoscutum rather short, not 

 much longer than broad, the posterior lateral angles sharply pro- 

 duced into a small tubercule; scutellum small, distinctly separated 

 from the mesoscutum by a shallow depression; posterior thoracic 

 ]o])e strongly convex, viewed from the sides very abruptly declivous 

 anteriorly, more sloping posteriorly, the posterior face with a dis- 

 tinct complete transverse carina which is rather strongly angled 

 medially; abdomen distinctly longer than head and thorax; first 

 tergite fully twice as broad at apex as at base, about as long as 

 posterior thoracic lobe, its spiracle not prominent, sculptured like 

 the thorax; abdomen beyond the first tergite broadly ovate, shin- 

 ing, the sculpture much weaker than that of the first tergite, 

 sparsely hairy, the hairs short; ovipositor exserted nearly one and 

 one-half times the length of the first tergite. General color very 

 dark reddish brown; antennae dark reddish testaceous, brownish 

 apically; abdominal petiole and all trochanters pale testaceous. 



Male. — Winged; head shaped and sculptured as in female; posto- 

 cellar line equal to about twice the ocellocular line; antennae 23- 

 jointed; thorax sculptured like the head; mesoscutum without parap- 

 sidal grooves on the posterior two-thirds; propodeum areolated, the 

 carinae, except the posterior transverse carina, very faint and deli- 

 cate, the areola hexagonal and about as broad as long; discocubita;l 

 vein with or without a ramellus; radial cell rather short; the meta- 

 carpus about equal in length to the anterior margin of stigma ; 

 areolet open, pentagonal in position ; abdomen about as long as 

 20107— 22— Proc. N. M. vol. 61 42 



