216 THE BLOWFLIES OF NortTH AMERICA 
Legs with posteroventral row of bristles on middle femur, these 
longer and more closely set apically. 
Wing (pl. 9, J) with minute costal spine; posterior cross vein 
sinuate. 
Abdomen with two to four strong erect median marginal 
bristles on second segment; third and fourth segments each with 
a row of strong erect marginal bristles. 
Bufolucilia elongata (Shannon), new combination 
Lucila elongata Shannon, Insecutor Inscitiae Menstruus 12: 
76, 1924. (Type, female from Mt. Constitution, Orcas Is- 
land, Wash., No. 26688, U. S. National Museum). 
Lucila bufonwora Moniez, Aubertin, Linn. Soc. London Jour., 
Zool. 38 (260) :419, 1933 (in part). 
This species has been generally listed as a synonym of the 
Palearctic species bufonivora Moniez, but this is an error. Bufo- 
lucilia bufonivora has the front of the male at the narrowest 0.09 
of the head width, while the front at the narrowest in elongata 
is 0.14 of the head width; in the female, the front at the vertex 
in bufonivora is 0.29 of the head width, while in elongata it is 
0.35. Both stlvarum and bufonivora, as determined by Villeneuve, 
Séguy, and Townsend, have three postacrostichal bristles while 
elongata has but two. Aubertin (1933) pointed out that the 
latter character is not entirely reliable in stlvarum and bufom- 
vora ‘‘as the chaetotaxy is rather variable in each species.’’ 
A blue-green species with strong median marginal bristles on 
the second abdominal segment and with two postacrostichal 
bristles. 
Male. Head width 11.5; length at antenna 5.6 and at vibris- 
sa 5.8; eye height 7.0; head height 9.0; bueca black, 0.29 of eye 
height, with scattered black hair and with silvery gray pollen; 
frontale as wide as parafrontale at lunule and narrowing pos- 
teriorly, dark reddish brown anteriorly and black posteriorly 
near ocellar triangle; front at narrowest (1.0 before foremost 
ocellus) 0.14 of head width, 0.20 at vertex and 0.30 at lunule, 
with bright silvery pollen; parafrontale with a single row of . 
minute black hairs outside frontal row of bristles which extends 
slightly anterior to foremost frontal bristle; frontal bristles 
about 12, the rows extending to about the base of the second an- 
tennal segment and diverging considerably anteriorly as they 
follow the margins of the widening frontale; vertex black, sub- 
pollinose; ocellar bristles strong, proclinate; clypeus yellowish 
