SUBFAMILY CHRYSOMYINAE 169 
tatus Aldrich and Shannon) = Phormia caerulea Malloch 
(1919), preoccupied, = Sarcophaga atriceps Zetterstedt. 
(Monobasiec). 
Mallochomyia Townsend, Insecutor Inscitiae Menstruus 14:25, 
1926. Genotype, (Mallochomyia johansent Townsend) = 
Sarcophaga atriceps Zetterstedt. (Monobasic). 
Male and female. Head (pl. 3, C and D) elongate, with 
length at vibrissa greater than at antenna; parafaciale narrowed 
above and hirsute; faciale concave in profile, and bristled about 
five-sixths the distance to the antennal base; palpus elongate, 
clavate; third antennal segment about twice as long as second; 
arista with short plumosity above and below about three-fourths 
the distance to the apex; back of head bulging. 
Thorax with mesonotum conspicuously flattened on disc; hum- 
eral bristles three, rarely a fourth present; propleuron nar- 
rowed due to enlargement of mesothoracic spiracle, strongly 
setose; propleural bristles two; preintraalar bristle one, the pre- 
sutural absent; predorsocentral bristles two; notopleural bristles 
two; pteropleuron bare on hind margin but with a tuft of thick- 
set hair postmediodorsally; prosternum setose; postacrostichal 
bristle one; postdorsocentral bristles four; postintraalar bristles 
two; no preintrapostalar bristle; prothoracic spiracle much en- 
larged, long-ovate; mesothoraciec spiracle slightly enlarged; the 
anterior margin without long hair; scutellum with one discal 
bristle, two lateral bristles and usually a long weak third bristle 
between these, apical bristles absent, under surface of scutellum 
with scattered hair. 
Legs with anterior femur without anteroventral row of bristles; 
tarsi as long as tibiae; claws and pulvilli as long as last tarsal 
segment in male, a little shorter in female. 
Wing with subcostal sclerite with fine long hairs; remigium 
basally below with some cilia; only third vein setulose above; 
fourth vein without apical section or fold at angle and bending 
gently toward wing tip at almost 45 degrees; apical cell closed 
in wing margin, the third vein curved posteriorly to meet fourth 
vein in costa; anterior cross vein before middle of second section 
of fourth vein in proportion 4.0:4.5; posterior cross vein gently 
doubly arcuate; last section of fifth vein about one-seventh pre- 
ceding section; upper squamal lobe with dark setae on upper side, 
rounded posteriorly and the inside apical margin truncate; lower 
squamal lobe rather large, ovate, pilose on margin. 
Abdomen with scutellar depression extending about one-half 
the distance toward posterior margin of first segment; all ter- 
gites with rather long erect hair and with several long lateral 
