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



SCHIZOCERIN^. 



Schizocerus LePeletier. 

 Key to Species. 



1. Abdomen wholly or for the most part yellow or rufous 2 



Abdomen wholly black or with a lateral yellow or rufous band 3 



2. Prothorax black; body black, with supraclypeal area, clypeus, 



labrum, middle and hind coxae and trochanters, front 

 tibiae and basal segments of tarsi, metanotum and basal 

 plates sometimes, and abdomen, except apices of saw- 

 guides sometimes, yellow; wings infuscated. Length 8 



mm privatus 



Prothorax wholly or in great part rufous; body in female 

 rufous, with clypeus, labrum, mandibles, antennae, square 

 area about ocelli, lower orbits, two spots on pectus, legs 

 except front tibiae and their tarsi in front, basal plates, 

 and saw-guides, black; wings infuscated. Male has body 

 black, with prothorax in great part, tegulae, knees of all 

 legs, front and middle tibiae, and abdomen except at apex, 

 yellow or rufous; wings smoky, clearer at apex. Length 

 7-8 mm plumiger 



3. Collar more or less pale 4 



Collar entirely black; body wholly black, with legs below 



knees, pale, usually more or less infuscated; antennae 

 elongate, and more or less infuscated; wings smoky. 

 Length 7 mm ebenus 



4. Tegulae and collar narrowly margined with white; body black, 



with collar, tegulae, legs below knees, and a broad margin 

 on apex of each abdominal tergite, white, more or less 

 suffused with rufous; head and thorax metallic black, and 

 densely covered with fine, white setae; wings hyaline, veins 



brownish. Length 7 mm sericeus 



Tegulae and collar broadly yellow; body black, with pro- 

 thorax, tegulae, rrfesonotum more or less on each side, 

 front and middle legs below the knees, tip of posterior 

 femora, base of their tibiae more or less, and a band along 

 lateral margins of abdomen more or less, yellow; wings 

 hyaline, veins and stigma black or brown. Length 6-7 

 mm zabriskiei 



S. privatus Norton. Stonington, 9 August, 1906 (J. A. 

 Hyslop). 



°S. plumiger (Klug). Howard, Insect Book, PI. xiv. Figs, i 

 and 6. 



°S. ebenus Norton. Larva feeds on sweet potato. 



°S. sericeus Norton. 



