No. 22.] HYMENOPTERA OF CONNECTICUT. 37 



Neurotoma Konow. 

 *N. fasciata (Norton). Howard, Insect Book, pi. xiv, Fig. 



IS- 



Body in female black, with the following parts yellow: a 



shield-shaped spot between the antennae, tegulae, scutellum, post- 

 scutellum, a triangular spot on the caudo-lateral angles of the 

 fourth to the sixth tergal segment, and legs except coxae and 

 basal half of femora ; wings fuliginous, front wings clear at apex. 

 Male differs in having scutellum and postscutellum black, and 

 legs beyond coxae entirely yellow. Length 12 mm. Larva 

 feeds on cherry. 



Connecticut (E. N.). 



N. inconspicua (Norton). 



Body dull black, with tegulae yellow and mandibles and legs 

 beyond the coxae rufous; tarsi black; wings hyaline, with a faint 

 fuscous band behind the stigma. Length 9 mm. Larva feeds on 

 cherry. 



Pamphilius Latreille. 

 Key to Species. 



1. Antennae white beyond the first segment; head and thorax 



black, with the usual pale markings; abdomen black, with 

 a white lateral margin and a transverse band on the middle 

 of the four apical segments; legs yellow, with anterior and 

 middle coxae, anterior trochanters, basal half of anterior 

 and middle femora, and apices of their tibiae and tarsi, 

 posterior coxae in part, and apices of their tibiae and 

 tarsi, black; wings hyaline. Male differs from female only in 

 having the spots on head and thorax smaller and the black 



on legs more pronounced. Length 10 mm semicinctus 



Antennae entirely black, yellow or rufous beyond the middle 2 



2. Head and thorax in female luteous with black markings; 



abdomen luteous with a longitudinal black or fuscous band 

 on each side of tergum within the margin; legs entirely 

 luteous, darker toward apex; wings hyaline. Male differs 

 in having disk of the head, thorax, and abdomen black with 

 yellow spots; posterior tibiae and all the tarsi fuscous. 



Length 9 mm ocreatus 



Head and thorax black, with yellow markings 3 



3. Abdomen rufous beyond the first segment 5 



Abdomen black, with the third and fourth segments rufous 4 



4. Head with a strongly elevated V-shaped ridge behind the 



median ocellus; body black, with declivous part of the 



