SuBFAMILY CHRYSOMYINAE Bat 
one large; postdorsocentral bristles four or five, usually strong 
only in prescutellars; intrapostsutural bristle present; postin- 
traalar bristle one; intrapostalar bristle present; mesothoracic 
bristle one, long; mesothoracie spiracle large, oval; metathoracic 
spiracle as long as squamopleuron, transverse; scutellum with 
three discal bristles, one of these rather subapical, and with 
three strong lateral bristles. 
Legs with fine hair on coxae; anterior tibia with about six 
short black dorsal bristles and with one posteroventral bristle 
near apical third; middle femur with one anterior bristle near 
middle and about six long ventral bristles in a row which extends 
from base to near middle; middle tibia with one anterodorsal 
bristle near apical third, one ventral bristle near apical third, 
one posterodorsal bristle near apical third; hind femur with 
posterodorsal row of long, thin bristles which are set closely 
together, and with a posteroventral row of bristles which are not 
set closely together, the two apical bristles longest and strongest; 
hind tibia with one dorsal bristle near apex, about five antero- 
dorsal bristles in a row which extends from base to near middle, 
one anterodorsal bristle near apical fourth, two anteroventral 
bristles near middle, and one posterodorsal bristle near apical 
third; tarsi brownish to black, claws and pulvilli short. 
Wing with subcostal sclerite setose on anterior edge; remigium 
below with several fine hairs at base; third vein setulose about 
one-fifth the distance to the cross vein; fourth vein without 
apical section or fold; seventh vein long, curved; lower squamal 
lobe short, subovate, narrowed posteriorly, pilose on anterior half 
or more of upper surface. 
Abdomen without discal bristles but fourth segment with 
erect and scattered hair; no median marginal bristles; male with 
row of rather long and erect marginal bristles on second, third, 
and fourth segments, these bristles short and recumbent in 
female; ventral membrane narrowly exposed. 
Male genital segments rather large, first segment large, with- 
out marginal row of bristles posteriorly; second segment smaller 
and rather flattened. 
Genotype. Musca lyrcea Walker. 
A further discussion of this genus will be found on page 152 
under the heading of Paralucilia Brauer and Bergenstamm. It 
will suffice here to state that Townsend (1916) recognized the 
fact that Brauer and Bergenstamm had at least two species in a 
mixed series before them when they described the genus Paralw- 
cilia, designating Calliphora fulvipes Macquart as genotype. 
Since this designation must stand for Paralucilia according to 
