SUBFAMILY CHRYSOMYINAE 201 
Type locality Naknek Lake, Alaska. 
One male and two females (paratypes) were collected at Sa- 
vonoski, Naknek Lake, Alaska, August 1, 1919 (J. S. Hine). 
These three specimens were included in sialia by Shannon 
(1924, p. 252). 
Apaulina sialia (Shannon and Dobroscky), new combination 
Protocalliphora splendida variety sialia Shannon and Dobro- 
secky, Wash. Acad. Sci. Jour. 14:251, 1924; Johnson, Boston 
Soe. Nat. Hist. Oecas. Papers 7 (15) :216, 1925; West in 
Leonard, Mem. 101, Cornell Univ., p. 827, 1938; Johnson, 
Psyche 34:33, 1927; Ent. Soc. Amer. Ann. 22:132, 1929; 
Birdbanding 1:169, 1930; Birdbanding 3 :26-28, 1932; Mc- 
Atee, Wash. Ent. Soc. Proc. 31 (6) :105, 1929. (Type and 
type locality not stated). 
Male. Head width 13.8; head height 11.0; length at anten- 
na 7.0 and at vibrissa 6.5; eye height 9.0; bueca approximately 
0.20 eye height; front at narrowest 0.08 head width, 0.16 at ver- 
tex and 0.31 at antennal base; parafaciale opposite lunule and 
distance between vibrissae equal, 1.7:1.7; propleural hair often 
yellowish brown, legs with three posterodorsal bristles on mid- 
dle tibia as in avium, but with two anterodorsal bristles, one 
near middle, the other near apical fourth, two posterior bristles, 
and two posterodorsal bristles. Otherwise apparently similar to 
metallica. Genital segments (pl. 22, F) as illustrated. 
Female. Head width 14.0; head height 10.5; length at an- 
tenna 7.5 and at vibrissa 6.5; eye height 7.5; bucca 0.380 eye 
height; front at narrowest (vertex) 0.26 head width and 0.40 at 
lunule; parafaciale opposite lunule equal in width to distance 
between vibrissae, 1.8:1.8. Body coloration differing from typical 
metallica in having abdomen completely dark bluish black, the 
apical segment not bronzy metallic. Otherwise similar to male 
except for usual sexual differences. 
Length. 6-8.5 mm. 
Distribution. Nearctic: North of Virginia in the United States 
to southern Canada, apparently most abundant in the north- 
eastern sections of the United States. 
This species is found in many collections determined as Pro- 
tocalliphora splendida (Macquart) or Phormia chrysorrhoea 
(Meigen). The male genitalia show it to be closely related to 
metallica. The female is easily separated from metallica on the 
basis of color differences, but the male is separated from metallica 
and aenea only with considerable difficulty. 
