48 THOMPSON YATES AND JOHNSTON LABORATORIES REPORT 
28 to 29 ; and in the 19 to 23, 19 to 22, 12 to 14, 25 to 27. The club of the 
antenna is in both sexes a little longer than it is broad. 
Thorax. — The pronotum bears a row of five or six bristles, the lower one alone 
being long. On the mesonotum there is one long bristle near the ventral edge, and 
a row of four or five shorter ones which are placed further dorsad. The very short 
metanotum has no prominent bristles, but there are two or three extremely small hairs 
upon it. On the epimerum of the metathorax there are two rather thin bristles below 
the stigma, one of which is sometimes missing, and nearer the ventral edge one long one, 
and in some examples two. 
Abdomen. — The tergites one to six bear on each side two bristles, besides some 
very minute hairs, the seventh tergite having three bristles instead of two. The sub- 
apical bristle of the seventh tergite is rather thin and short. The sternites of segments 
2 to 6 have in the % each one bristle besides some very small hairs standing in a 
more or less regular vertical series, in the 1 only some minute hairs being present. 
The stigmatical cavities of the % are enlarged, their diameter being more than twice 
the diameter of the groove of insertion of the subapical bristles of the seventh tergite. 
In the # the abdominal stigmata are very much smaller than the three thoracical ones.* 
Legs. — The number of spine-like bristles on the hind coxa varies from thirty to 
forty-two. There are two bristles on the mid and hind coxae posteriorly above the 
apical lobe. The hind femur bears a row of nine to twelve bristles. The mid and 
hind tibiae bear six dorsal incisions, the apical one included. The dorsal bristles of 
the fore tibia are short and stout. One bristle of the second, fourth, and apical pairs 
of the hind tibia is long, the middle one being about twice as long as the tibia is 
broad at the apex. The first hind tarsal segment is a little over half the length of the 
hind tibia ; it bears on the hinder side four or five bristles, and on the anterior side 
two or three, exclusive of the apical ones. The longest apical bristle of the second 
hind tarsal segment does not quite reach to the apex of the fifth segment. This latter 
segment bears on each side five stout bristles, besides a subapical hair, the ventral 
apical bristles being also stout (PI. Ill, Fig. 23). The claw has a distinct basal 
projection. The measurements of the mid and hind tarsi are as follows : — 
First Segment 
Second Segment 
Third Segment 
Fourth Segment 
Fifth Segment 
Mid tarsus, $ 
13 
17 
IO 
8 
23 
9 
18 
20 
9 
z 7 
Hind tarsus, $ 
36 
23 
IO 
26 
9 - 
4' 
25 
l6 
30 
* The stigmi situated on the metathoracical epimerum is here counted as a thoracical one. 
