SUBFAMILY CHRYSOMYINAE 125 
small lateral spots on segments 2 to 4 which show quite heavy 
whitish pollen in certain lights especially on lateral margins of 
tergites; a middorsal longitudinal stripe beginning at the an- 
terior margin of the second segment and continuing to a point 
a little beyond the base of the fourth segment, posterior third 
of third segment shining, coppery aeneous; fourth segment red- 
dish coppery-aeneous. 
Genital segments with first segment coppery aeneous, second 
orange brown to black, both with long scattered black erect hair; 
forceps orange brown. Internal features (pl. 17, E and F) as 
illustrated. 
Female. Similar to male except head height 10.0; length at 
antenna 4.7 and at vibrissa 5.3; eye height 7.5; bueca 0.25 eye 
height; head width 12.0; front at vertex 0.29 head width, 0.34 
at lunule, the margins very slightly curving inward from ver- 
tex to four-fifths the distance to lunule where front is narrowest; 
frontal rows of bristles narrowly converging anteriorly; fronto- 
orbital bristles one reclinate and one or two very weak pro- 
elinate; parafaciale 1.2 in width opposite lunule; vibrissae set 
1.7 apart; palpus 2.3 in length; back of head blackish above and 
yellow orange below. Legs with one long anterior bristle near 
middle on middle femur. 
Length. 5.5-7.0 mm. 
Distribution. Nearetic and Neotropical: Key West, Fla.; West 
Indies; Bermuda, Bahamas, Cuba, San Salvador, Puerto Rico, 
Virgin Islands. 
Lucila taeniaria Thomson (nee Wiedemann, var. b of ma- 
cellaria) (1869, p. 544) is the same as Paralucilia fulvipes (Mac- 
quart). 
Biology. Male and female specimens may be collected fre- 
quently while they feed upon fresh horse manure which is 
apparently very attractive to them. On the Island of Nassau, 
Bahamas, during May, 1943, many specimens were taken in 
meat-baited traps. Males may be collected on low foliage near 
leaking water faucets and females on or near carrion, particu- 
larly dead fish and mollusks on ocean beaches. The immature 
stages are unknown. 
Callitroga americana (Cushing and Patton), new combination 
(The screwworm fly) 
Cochliomyia americana Cushing and Patton, Ann. Trop. Med. 
and .Parasitol. 27 (4) :539, 1933; Laake, Cushing and 
Parish, U. S. Dept. Agr., Bur. Ent. & P. Q., Tech. Bull. 
500:1-4, 19386; Cushing and -Hall, Ent. Soc. Wash. Proe. 
