982 Tue BLOWFLIES or NortH AMERICA 
140 :50:8. Otherwise like male except for normal sexual differ- 
ences. 
Length. Male, 6.5 mm.; female, 8.0-10.0 mm. 
Distribution. Nearctic: Alaska and northern Canada. 
Five male and seven female specimens from Savonoski, Nak- 
nek Lake, Alaska (August), are presumably this species but are 
considerably smaller, especially the males. The above description 
is based upon the female holotype. There is a pair collected in 
copula in the series at Ohio State University; the male descrip- 
tion is based upon the male of this pair. 
Biology, habits, and immature stages. Unknown. 
EUCALLIPHORA TOWNSEND 
Eucaliphora Townsend, Smithsn. Mise. Collect. 51:118, 1908; 
Manual of Myiology, vol.-2, p. 170, 1935; ibid., vol. 5, p. 148, 
1937; Séguy, Enecyel. Ent. (B. IT), Dipt. 8:133, 1985. Geno- 
type. (Calliphora latifrons Hough) = Musca lilaea Walker. 
Monobasie. 
Male and female. Head (pl. 6, B) width over twice head 
length at antenna; epistoma nearly as wide as clypeus, only 
slightly elongate, and warped forward from clypeal plane; meta- 
cephalon flattened and not apparent with head in profile; bueca 
high; eye of moderate size and set in head at a 15-degree angle; 
frontale nearly smooth; front wide in both sexes but widest in 
female; frontal rows of bristles widely divergent anteriorly, the 
foremost three bristles on outer third of parafaciale; inner ver- 
tical bristles reclinate; outer vertical bristles small but present in 
both sexes; frontoorbital bristles, one reclinate in male, two pro- 
clinate and one reclinate in female; accessory ocellar bristles 
present; clypeus deeply sunken, narrow and more or less cup- 
hike; facial carina apparent between second antennal segments 
only, narrow, low; parafaciale narrowed below, setose on upper 
half or more; faciale slightly convex in profile with one row of 
strong and one or two rows of weaker bristles for one-half to 
three-fourths the distance to the antennal base; vibrissae slightly 
above the oral margin and well separated; proboscis one-half 
head height; palpus clavate, tip well clubbed; antennal base 
slightly above eye center with head in profile; third antennal 
segment almost four times as long as second, reaching nearly 
to the vibrissa; arista with long cilia above, shorter cilia below, 
for three-fourths its length; back of head flat or but very slightly 
rounded. 
Thorax with four humeral bristles arranged in a definite 
