SUBFAMILY CALLIPHORINAE 297 
struus 11 :109, 1923; Johnson, Boston Soe. Nat. Hist. Oceas. 
Papers 7(15) :217, 1925; West, in Leonard, Mem. 101, Cor- 
nell Univ., p. 827, 1928; Roberts, Ent. Soc. Amer. Ann. 
23:790, 1930; Johnson, Bird-banding 3:26, 1932; Patton 
and Cushing, Ann. Trop. Med. and Parasitol. 28(2) :213-216, 
1934. 
The very brief original description of Calliphora viridescens 
by Robineau-Desvoidy was of a female. Hough’s (1899) deter- 
mination was followed for over a quarter of a century. Aldrich 
saw the type of viridescens in 1928 and found that it was not the 
same as the viridescens of North American authors, but he could 
not be certain to which of the other species the name viridescens 
should be applied, for the type is in poor condition. Hough 
(1899) erroneously considered Calliphora terrae-novae Macquart 
to be a synonym of this species. He also placed Calliphora 
violacea Meigen as a synonym, and this synonymy was accepted 
by Bezzi (1908), but I am unable to verify it. 
A typical Calliphora species with the general aspect of vicina, 
but with the bueca black. 
Male. Head height 13.6; eye height 10.1; bueca 0.32 eye height, 
head black, with thin gray pollen and with black hair; cheek 
grooves orange to red orange; length at antenna 7.2 and at 
vibrissa 8.3; frontale mahogany red especially anteriorly, 
nearly obliterated at narrowest portion (1.0 before the foremost 
ocellus), but widening to three times as wide as parafrontale at 
lunule; front at narrowest 0.05 of head width, 0.12 at vertex and 
0.28 at lunule, black, with silvery pollen and scattered black 
hairs; frontal row consisting of about 7 or 8 bristles, with weak 
hairs from middle toward vertex, diverging more rapidly than 
margins of frontale anteriorly, and extending to about the 
middle of the second antennal segment; vertex black, with gray 
pollen; clypeus orange brown, with gray pollen; carina low and 
hardly apparent; parafaciale 1.7 in width opposite lunule, black, 
often deep mahogany red on lower third or less, with sparsely 
seattered black setae at middle of upper half; faciale orange to 
orange brown, with several rows of short black setae which ascend 
about one-half the distance to the antennal base; vibrissae 
slightly above the oral margin and set 3.6 apart; epistoma as 
wide as elypeus; palpus 4.2 in length, orange; antenna orange 
brown to black, apex of second and base of third segments orange, 
third segment 4.7 times as long as second, reaching fully four- 
fifths the distance to the vibrissa; arista black, apical third bare, 
ciliation black, long above and shorter below; back of head flat- 
