164 INSECUTOR INSCITI^ MENSTRUUS 



Blackish, silvery -ash poUinose. Third antennal joint sub- 

 rufous on inside at base. Palpi and frontalia brown. Sides 

 of second and third abdominal segments broadly rufous, anal 

 segment mostly rufous. A median vitta blackish, and a lateral 1' 

 one on each side. Between the lateral vittas the second and 1 

 third segments are blackish. Hind margins of segments black- 

 ish or brown. The vittse of abdomen divide the pollen into > 

 four silvery spots on second and third segments, less con- • 

 spicuously so on anal segment. Hypopygium rufous. Legs ■ 

 brown, the tibiae lighter. Tegulae nearly white. 



Tephomyiella, new genus. 



Differs from Sarcophaga as follows : Female. Arista short- 

 plumose halfway. Eyes large. Vertex about three-fourths 

 eye. Parafrontalia nearly as wide as frontalia. Frontals 

 diverging obliquely two below base antennae. Parafacialia 

 about one-third as wide as clypeus, with row of bristly hairs. 

 Cheeks about one-third eye-length. Postsuturals 3 ; pre- 

 acrostichals present. One strong postacrostichal. Two lateral 

 scutellars. Cubitus right-angled. No median marginals on 

 second segment, weak marginal row on third segment. Hypo- 

 pygial sternite modified into a short spatulate sheath to larvi- 

 positor, no longer than first sternite and about as broad at 

 base as latter is at junction therewith. Genotype, Tephro- 

 myiella frankliniana, n. sp., being female described by Aldrich 

 as Sarcophaga atlanis, Sarc. and Allies, 102 (1916). Holotype, 

 No. 21586, U. S. Nat. Mus. 



The structural characters indicate that this can not be the 

 female of atlanis Aid. It is even quite doubtful if franklin- 

 iana is congeneric with atlanis. The latter has median mar- 

 ginals on second abdominal segment, 4 pairs of postacrosti- 

 chals, flat disk to mesonotum, hind femora with median longi- 

 tudinal row of bristles, third antennal joint short and nar- 

 rowed, tegulas mostly dirty fuscous ; strongly contrasting with 

 frankliniana, which has no median marginals on second seg- 

 ment, only 1 pair of postacrostichals, no flattening of meso- 

 notum, hind femora without vestige of median row of bristles, 

 third antennal joint long and broad, tegulae white. 



