No. 22.] HYMENOPTERA OF CONNECTICUT. 73 1 



pubescence, the fasciae broad laterally, narrow and basal 

 medially, fifth with a white patch on each extreme side . . . 



condigna 



2. Hairs of scopa branched 3 



Hairs of scopa not branched; pubescence of thorax fulvo- 



ochraceous; second to fourth dorsal abdominal segments 

 with narrow, median, white pubescent fasciae compta 



3. Scutel and disc of mesonotum without evident black or 



fuscous hair 4 



Scutel and disc of mesonotum with evident black or fuscous 

 hair 6 



4. Fasciae on base and middle of second, on middle of third, 



and on apical margin of fourth dorsal abdominal segments 5 

 Fasciae obsolete or nearly so; scopa ochraceous; pubescence 

 on back of body short, dense, pale; that of occiput black 



desponsa 



5. Fasciae on fourth dorsal abdominal segment not enclosing a 



diamond-shaped black patch; pubescence fulvous; fasciae 

 broad, nearly covering second to fourth dorsal abdominal 

 segments, fascia on fourth segment entire; maxillary palpi 



usually 4-jointed agilis var. aurigeniae 



Fasciae narrow, on fourth dorsal abdominal segment, neither 

 notched nor interrupted, but bordered by deep brown 

 pubescence posteriorly; tegulae brown; maxillary palpi 3- 

 jointed; labial palpi*with first joint nearly as long as 

 second dentiventris 



6. Wings clear or nearly so, sometimes purplish; black patch 



on mesonotum reaching tegulae, or nearly; pubescence of 

 vertex mostly black; fore and mid legs with blackish 



pubescence 7 



Wings more or less clouded or fuscous 8 



7. Pubescence on clypeus, labrum, vertex, part of mesonotum, 



and scutel blackish rustica 



Pubescence ochraceous even on clypeus perplexa 



8. Fourth dorsal abdominal segment with an apical patch of 



white pubescence on each side bimaculata 



Fourth dorsal abdominal segment not ornamented as in 

 bimaculata; with broad, oblique, apical fasciae on second 

 and third segments, nearly obsolete on second; vertex with^ 

 black hairs; most of the pleural hairs black obliqua 



Males. 



1. Antennae pale beneath, third joint shorter than fourth ... 2 

 Antennae black, third joint as long as fourth compta 



2. Abdomen without metallic reflections _ 3 



Abdomen with metallic reflections condigna 



3. Seventh abdominal segment with lateral spines 4 



