SUBFAMILY CHRYSOMYINAE 109 
black, second segment orange brown, both shining; internal 
anatomical features (pl. 15, E and F) as illustrated. 
Female. Head (pl. 1, C) height 16.0; head length at antenna 
7.0 and at vibrissa 7.5; parafaciale 1.2 in width opposite lunule; 
distance between vibrissae 2.6; eye height 11.0; bueea 0.30 eye 
height; third segment of antenna six times as long as second; 
palpus 4.2 in length; head width 18.4; front at vertex 0.27 
of head width, 0.21 at narrowest (1.5 units anterior to foremost 
ocellus) and 0.27 at lunule, the frontal margins converging 
anteriorly; frontale bright red orange 0.68 of front just anterior 
to ocellar triangle and narrowing to 0.50 of front immediately 
posterior to lunule; inner vertical bristles decussate; outer ver- 
tical bristles divaricate; frontal rows of bristles following the 
margins of the frontale, diverging anteriorly and reaching to 
about the middle of the second antennal segment, each row con- 
sisting of about 12 bristles; vertex black; area posterior to ocellar 
triangle orange red; back of head blackish brown with one row 
of postocular cilia and with orange hair. Thorax anteriorly 
yellow orange on pleura, elsewhere as on dorsum. Abdomen with 
bristles in marginal rows, less elongate and more recumbent 
than in male. Otherwise similar to male except for normal sexual 
differences. 
Length. 8-10 mm. 
Distribution. Neotropical: Cozumel, Quintana Roo Provinee, 
Yueatan, Mexico, to northern Chile; most abundant in Vene- 
zuela and the Guianas. 
Biology. Adults of this species are commonly collected in 
meat-baited traps, and in nature they appear to act very similar 
to Callitroga macellaria. They occur most frequently in open 
areas near dense rain forests where they feed on rotting sub- 
stances, particularly well-decayed careasses of animals. The 
immature stages are unknown. 
Hough (1900, »p. 204) considered Chrysomya hyacinthina 
Robineau-Desvoidy to be a synonym of this species but this is 
an error as is indicated elsewhere. 
MYIOLUCILIA, NEW GENUS 
Paralucilia Townsend (nec Brauer and Bergenstamm), Insecu- 
tor Inscitiae Menstruus 4:11, 1916; Rev. de Ent. 1:70, 1931; 
Manual of Myiology, vol. 2, p. 163, 1935; ibid., vol. 5, p. 129, 
1937; Aldrich, U. S. Natl. Mus. Proc. 66(18) :17, 1925; Ent. 
Soe. Amer. Ann, 18:456-457, 1925. 
Medium-sized blue and black species with shining bright blue- 
