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



a pale apical edge; scape of antennae black; second and 

 sixth to ninth antennal joints stramineous; third, fourth 

 and fifth joints brown, tenth and following joints blackish; 

 legs mostly reddish; coxae, trochanters, tibiae and tarsi of 

 fore legs, tibiae and tarsi of mid legs, stramineous; apex 

 of hind femora, apex of hind tibiae and base of latter 

 dusky, hind tarsi brown; exserted portion of ovipositor 



two-thirds as long as abdomen metacomet 



9. Length 5-6 mm 10 



Length less than 5 mm II 



10. Male: head and thorax black; mandibles brownish in middle; 



palpi stramineous; antennae blackish throughout; tegulae 

 brown, wings yellowish at extreme base; fore and mid legs 

 mostly brownish stramineous; mid coxae blackish at base; 

 hind coxae brownish above, but blackish at base and be- 

 neath; hind trochanters mostly brown; hind femora mostly 

 reddish, the latter dusky at apex; hind tibiae mostly red- 

 dish, dusky at base and apex, their tarsi dusky; abdomen 

 mostly reddish; basal four-fifths of first dorsal segment 

 black, most of its apical fifth reddish, fourth and following 



dorsal segments dusky or blackish nigricaniformis 



Female and male: differing from nigricaniformis as follows: 

 mandibles almost entirely black; palpi brownish; tegulae 

 and wing bases whitish; mid coxae entirely brownish stra- 

 mineous, hind legs brownish stramineous, except their 

 tibiae and tarsi, which are mostly blackish; fourth and fifth 

 dorsal abdominal segments reddish in female; abdomen 

 entirely black or blackish in male Columbia 



11. Length less than 4.5 mm 12 



Length 4.5 mm. (male); mandibles partly yellowish, antennae 



dark brown except pedicel and scape, which are whitish 

 beneath; mid coxae entirely brownish stramineous, hind 

 coxae reddish, hind tibiae stramineous, brownish at base and 

 apex; abdomen above mostly blackish or black, apical 

 margins of second, third and fourth segments more or less 

 reddish stramineous, fifth and following segments brown; 

 otherwise as in nigricaniformis as described above . lonicerae 



12. Length 4 mm 13 



Length 2.5-3 nim. (male); head, thorax and abdomen, black; 



scape rather yellowish beneath, rest of antennae mostly 

 brown; mandibles mostly yellow, palpi pale; tubercles, 

 tegulae, fore and mid coxae and all trochanters, yellow or 

 yellowish; hind coxae blackish at base and above; rest of 

 legs about as in algonquinus as described below. Female 

 antennae partly flattened; hind coxae brownish stramineous, 

 abdomen partly reddish brown to brownish . ...fulvipes race 



