956 : I. M. Hawiey 
DESCRIPTION OF STAGES 
The egg 
The chorion, or outer covering, of the egg (figs. 88 and 89, C) is white, | 
glistening, and marked with longitudinal furrows. Similar cross-furrows | 
connect the longitudinal ones, cutting off irregular | 
areas about twice as long as their width. One end | 
= of the egg is rounded and the other is rather bluntly | 
flattened. Two prominent ridges, starting at either 
Fic. 88. = 2 ; 
oe neo Sah end of the flattened part, meet at a point about | 
one-fourth the length of the egg. When the larva | 
emerges, the chorion splits near these ridges. The length of the egg is 
about 1 millimeter (1/25 inch). 
= = 5 Zi eae opie 
The larva 
The full-grown larva (Plate LX IX, 2,and fig. 89, D) is white, and is largest | 
at the caudal end, tapering anteriorly. In the early stages it is slender and © 
almost conical, but as it nears the time for pupation it becomes shorter | 
and almost elliptical in form. The first segment bears a pair of black, | 
hooked jaws which may be extended and retracted. The anterior spirac- 
ular process is heavily chitinized and bears six or seven lobes. The | 
posterior spiracles are small and consist of three slitlike openngs with | 
toothed edges. These spiracles, which are the external openings of 
tracheae running lengthwise thru the body, may be found on the flattened | 
caudal end of the larva. This flattened, almost truncate, segment bears | 
seven pairs of fleshy tubercles. The length of the larva is from 6 to 7 | 
millimeters (2 inch). | 
The puparium.—The puparium (figs. 89, A, and 90) is brown in color | 
and elongate-oval in outline. The puparium is the cast skin of the last 
molt of the larva, and so shows many larval characters. The anterior 
spiracles are present on the anterior part of the puparium and still show 
six or seven lobes. The fleshy tubercles on the caudal end of the body 
also remain but are less prominent. The length of the puparium is about | 
4 to 5 millimeters (§ to 4 inch). 
oO 
The adult 
. The male (Plate LXIX, 1, and fig. 89, B)—The body color of the} 
adult male is greenish gray, with the legs darker and the antennae black. | 
The entire body bears many black bristles. Faint dark lines run length- | 
wise on the dorsum of some specimens, and a prominent black line runs |) 
along the middle of the dorsal side of the abdomen. The main distinguish- |) 
ing character of the species is a row of regularly arranged bristles on the | 
tibia of the hind leg (Plate LXIX, 3). This separates the species czlicrura | 
