SUBFAMILY CHRYSOMYINAE 193 
soe. 5:30, 1929; Ent. Soc. Amer. Ann. 22:133, 1929; Boston 
Soe. Nat. Hist. Bull. 59:21, 1931. (Type, female from Puget 
Sound, Wash., reared from Turdus migratorius propinquus 
(Western Robin), No. 26863, U.S. National Museum). 
?Protocalliphora hirudo var. parva Shannon and Dobroscky, 
Wash. Acad. Sei. Jour. 14:2538, 1924. (Type, male from 
Colorado, No. 26864, U.S. National Museum. ) 
A small species with habitus and general color of metallica but 
with different head proportions and reclinate frontoorbital 
bristles absent in the female. | 
Male. Head width at greatest 11.2; length at antenna and at 
vibrissa 6.0; eye height 7.5; head height 9.0; bucea 0.21 eye 
height, with thin gray pollen; frontale extremely narrow, obli- 
terated at narrowest, but one-half frontal width at lunule; front 
at narrowest 0.05 of head width, 0.12 at vertex and 0.33 at lunule, 
with thin yellow-golden to bronze-colored pollen, and with some 
seattered setae extending anteriorly to tip of second antennal 
segment; frontal bristles about 12, thin and hairlike near mid- 
dle and nearly obsolete posteriorly, the rows extending anterior- 
ly to the base of the second antennal segment, and moderately 
divergent anteriorly as they follow the margins of the frontale; 
vertex shining black; parafaciale opposite lunule 0.20 Awe 
width, 0.5 the distance between vibrissae; faciale bristled one- 
third the distance ‘to antennal base with two or three rows of 
setae; vibrissae above oral margin by 0.4 and separated by 2.0; 
palpus orangé yellow; second antennal segment brown to black; 
third segment ‘one and three-fourths times as long as second, 
reaching four-fifths the distance to the vibrissa, reddish brown; 
back of head with one well-defined and two or three ill-defined 
rows of postocular cilia and with abundant whitish-yellow hairs. 
Thorax greenish metallic blue to lustrous black, with thin 
whitish pollen which is especially noticeable immediately behind 
head on dorsum, and with darker black longitudinal lines extend- 
ing slightly posterior to suture; propleuron with yellowish brown 
hairs; preintraalar bristles four, the posterior bristle placed 
0.60 before the suture; preacrostichal bristles three strong, with 
a smaller fourth often present, the hindmost bristle placed be- 
fore the suture by 1.0; predorsocentral bristles three, and usually 
with a weaker fourth, the hindmost bristle placed anterior to 
suture by 1.0; notopleural bristles two, sometimes with a weaker 
third; selerites at wing base with whitish pubescence; posta- 
erostichal bristles four, all strong; mesothoracic spiracle a lit- 
tle smaller than normal in Apaulina, with orange to brown hair; 
metathoracic spiracle with orange to orange brown hair; post- 
