JAMES CHESTER BRADLEY 315 



SPHAEROPHTHALMA Blake 

 Subgenus Sphaerophthalma Blake 



Males 



Black with the second abdominal segment yellow, the petiole and head above 

 sometimes slightly reddish. 



pennsylvanica (Lepeletier), race scaeva Blake 

 Legs, apex of the first and second dorsal and all of the remaining abdominal 

 segments black; otherwise dark red. 



pennsylvanica (Lepeletier), race pennsylvanica (Lepeletier) 



Females 



Only the one species and race is recognized in this sex. 



pennsylTanica (Lepeletier), race pennsylvanica (Lepeletier) 



Subgenus Photomorphus Viereck 



Males 



1. Head quadrate, the vertex behind the eyes very elongate; mesosternum 



with a long peg-like process in front of each coxa. Entirely black. 



banksi n. sp. 



Head transverse, the vertex not elongate behind the eyes; posterior part of 



mesosternum unarmed (2) 



2. Mesosternal processes transverse blunt tubercles (3) 



Mesosternal processes longitudinal denticulate carinae. . . .aloga (Viereck) 



3. Vertex closely punctured; front rugose; propodeum with a double median 



area at base; wings with a strong fuscous cloud in the region of the stigma; 

 head, thorax, and petiole entirely red, otherwise black . j ohnsoni (Viereck) 

 Vertex sparsely, front obsoletely, punctured, not rugose ; propodeum with- 

 out a median area; entirely black, except scuteUum and spot on propodeum 

 are reddish yellow rubroscutellata n. sp. 



Fernales 

 The female sex of this subgenus remains unknown. 



PHOTOPSIS Blake 



Females 

 The subgeneric position of the only species of this genus known from the 

 Eastern States in the female sex is unknown myrmicoides (Cockerell) 



Subgenus Odontophotopsis Viereck 



Males 

 Petiole strongly nodose, much constricted at apex; mesosternal processes 



are two transverse carinae paula n. sp. 



Petiole but slightly nodose, not much constricted at apex, mesosternum with 



two blunt, somewhat transverse, finger- like processes spinel n. sp. 



TRANS. AM. ENT. SOC, XLII. 



