2IO CONNECTICUT GEOL. AND NAT. HIST. SURVEY, [Bull. 



sculptured with a basal median embossed area, the third 

 dorsal segment without a median area or keel, the furrows be- 

 tween the second and third and between the third and fourth dor- 

 sal segments crenulate, the second to fourth dorsal segments much 

 wider than long down the middle, the third dorsal segment with- 

 out a punctate transverse subapical line. 



Key to Species. 



1. Abdomen mostly smooth and polished 2 



Abdomen mostly rugoso-punctate, exserted portion of ovi- 

 positor shorter than abdomen augustus 



2. Ultimate and penultimate joints of maxillary palpi stramine- 



ous; exserted portion of ovipositor longer than abdomen 



eurygaster 

 Ultimate and penultimate joints of maxillary palpi black; 

 exserted portion of ovipositor shorter than abdomen ....agrili 



I. (M.) agrili (Ashmead). Brae on agrili Ashmead. 



I. (M.) eurygaster Brulle. Howard, Insect Book, PI. viii, 

 Fig. 33. Parasitic on an unknown longicorn beetle taken in 



South Woodstock. Has been taken in and around New Haven 



in June, July and August. 



*I. (M.) augustus Viereck (new species.) 

 Type locality: North Haven, 13 August, 1905 (H. L. V.). 



Coeloides Wesmael. 



C. pissodis Ashmead. 



First dorsal abdominal segment yellowish red, as is the re- 

 mainder of the abdomen ; length 3.2 mm. ; ovipositor with its ex- 

 serted portion 2.6 mm. long. 



Host: the white-pine weevil (Pissodes strobi), a very common 

 beetle throughout the state, living also on Norway spruce. 



Rainbow, 191 1 (S. N. Spring). 



C. scolytivorus (Cresson). 



Head and thorax mostly black ; abdomen and legs almost en- 

 tirely brownish stramineous ; length 4 mm., exserted portion of 

 ovipositor 5.5 mm. long. 



Host: hickory bark-borer (Scolytus carya). 



Atanycolus Foerster. 

 A. simplex (Cresson). Howard, Insect Book, PI. ix, Fig. n. 

 Length 1 1 mm. ; exserted portion of ovipositor as long as the 



