No. 22.] HYMENOPTERA OF CONNECTICUT. 173 



body black, with labrum, a line at base of wings and 

 another on scutellum, and a triangular spot on metathorax, 

 white; legs (except a white line on underside of tibiae, and 

 posterior tibise and tarsi which are black) and first and 

 second abdominal segments, rufous; wings entirely hyaline. 



Length 9 mm abbreviatus 



2. Front wings hyaline, with a fuscous spot below the stigma; 

 body black, with tegulse, collar, metathorax in part, and 

 basal third of tibiae, white; three basal segments of abdo- 

 men, and legs, except parts - named and posterior tibiae 

 and tarsi in female which are black, rufous. Length 



8 mm integer 



Front wings hyaline, with a fuscous spot in cells Rs and 

 Mi; body in female black, with a spot on mandibles, palpi, 

 collar, stripe on pleurae, spot on coxae, and trochanters, 

 straw-white; four basal segments of abdomen, and legs 

 below trochanters, yellow-red. Male with antennae fer- 

 ruginous, and base of abdomen more or less black. 

 Length 9 mm bimaculatus 



°J. abbreviatus (Say). Cephiis abbreviatus Say. Phyllcecus 

 integer Riley. Howard, Insect Book, p. 71, Fig. 43; PI, xii, Fig. 

 22. Larvae bore in the stems of willow and poplar. 



*J. bimaculatus (Norton). Cephus bimaculatus Norton. 

 Farmington (E. N.). 



J. integer (Norton). Cephus integer Norton. Cephus Havi- 

 ventris Fitch. Currant Stem Girdler. Larva tunnels in the pith 

 of currant. Windham, New Haven (W. E. B.) ; New Haven, 

 21 May, 1913 (B. H. W.). 



Adirus Konow. 



A. trimaculatus (Say). Cephus trimaculatus Say. Howard, 

 Insect Book, pi. xiii, Fig. i. 



Body shining black, with two spots on the inner orbits, the 

 base of the mandibles, spots on the clypeus, all sometimes wanting, 

 and a spot on each side of the fourth abdominal tergite, yellow ; 

 the whole of the anterior tibiae and the basal half of the middle 

 tibiae white ; wings varying from hyaline to infuscated. Length 

 15-18 mm. Larva bores in the stems of blackberry. 

 Connecticut (E. N.). 



