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



reddish beneath and black above; trochanters, apex of 

 femora and tibiae black; tegulae yellow; wings hyaline, .hyalinus 



3. Length less than 20 mm 4 



Length 20 mm.; reddish; vertex mostly blackish; face mostly 



yellowish; sutures of thorax black; scutel yellowish; apical 

 fourth of abdomen mostly blackish; hind coxae and their 

 proximal trochanters mostly blackish; hind tibiae brown, 

 with apical third mostly blackish; hind tarsi with basal 

 joints yellowish; wings transparent, with a yellowish tinge; 

 antennae pale brown; ovipositor not much longer than face 

 is wide; propodeum without a deep, median, longitudinal 

 channel lateralis 



4. Length less than 19 mm 5 



Length 19 mm. (male); black; abdomen reddish, spotted with 



yellow and black; antennae piceous, black at tips and bases 

 above (yellow beneath) ; face below antennae and a nar- 

 row line back of eyes, mandibles, and palpi, yellow; 

 scutel black; first, second, and part of third and fourth 

 segments of abdomen rufous, a black line on summit of 

 second, sides of third and fourth segments black, spotted 

 with yellow; fore and mid legs yellow; hind coxae, spot on 

 trochanters, femora, and apex of tibise, black; a spot on tip 

 of coxae beneath, trochanters, base of tibiae and tarsi, yel- 

 low; tarsi blackish above; wings hyaline; tegulae and basal 

 half of costa yellowish; stigma piceous curtus 



5. Length less than 18 mm 6 



Length 18 mm. (female); reddish and black; third antennal 



joint as long as fourth and fifth together; color piceous, 

 darkest toward tip; basal joint reddish, as are some of the 

 succeeding joints; head reddish; eyes converging beneath 

 head; face below antennae yellow; edge of clypeus, labrum 

 and mandibles reddish; scutel yellow; sides of mesothorax, 

 a dot behind scutel, propodeum above, a stripe curving 

 from tegulae to base of pleurae, and abdomen, reddish; rest 

 of thorax, a line above second dorsal abdominal segment 

 and on sides of apical and four preceding abdominal seg- 

 ments, black; sheaths of ovipositor yellow; fore and mid 

 legs, hind trochanters and tarsi, yellow; all coxae, mid fem- 

 ora above, hind femora and tibiae reddish; hind trochan- 

 ters in part, and apex of tibiae black; femora and tips of 

 tarsi above, blackish; wings faintly smoky; tegulae yellow- 

 ish; stigma and costa reddish semirufus 



6. Length less than 17 mm 7 



Length 17 mm. (female); differs from lateralis as follows: 



wings with blackish tinge; antennae dark brown; mid legs 

 almost exclusively yellow or yellowish stramineous; apical 

 half of abdomen black or hlackish; also in exserted portion 



