50 THOMPSON YATES AND JOHNSTON LABORATORIES REPORT 
mesosternite bears two bristles. The metathoracical epimerum has three or four 
bristles from the stigma downwards, the bristles being equidistant. 
Abdomen. — The tergites bear on each side one bristle, which stands near the base 
of the segment, the first and the seventh segments alone possessing two bristles. 
There is a small subapical bristle on the seventh tergite. The sternites are bare of 
bristles, but there are a lew very minute hairs on them. The stigmatical cavities of 
the % are large, being only a little smaller than the stigmatical cavity of the metathor- 
acical epimerum. In the $ the diameter of the abdominal stigmatical cavities is about 
one-fourth smaller than that of the epimeral cavity. 
Legs. — The hind coxa bears a patch of about thirty to forty spine-like bristles. 
The hind femur has a row ot six or seven bristles. The hind tibia have three deep 
dorsal incisions from the base beyond the middle, besides a vestige of a subbasal 
incision. Between the third incision and the apical bristles there is generally one small 
hair. The longer bristle of the pair standing in the third incision is slender and rather 
short, not being much longer than the tibia is broad at the apex. The first hind tarsal 
segment is half the length of the' hind tibia measured along the anterior edge. This 
segment bears one or two lateral bristles besides the apical ones. The longest bristle 
ot the second hind tarsal segment reaches beyond the middle of the fifth. The fifth 
segment which is long and slender, bears on each side three rather long spines and a 
fourth short one, besides the ordinary subapical hair (PI. Ill, Fig. 25). The first and 
second spines stand closer together than the second and third. The two ventral 
apical spines are very stout. The claw is slender. Its basal projection is vestigial. 
The measurements of the mid and hind tarsi are as follows : — 
First Segment 
Second Segment 
Third Segment 
Fourth Segment 
Fifth Segment 
Mid tarsus, $ 
' + 
I 5 
I 1 
10 
27 
„ „ 9 
18 
I 2 
10 
32 
Hind tarsus, $ ... 
3° 
>9 
I 2 
3° 
„ $ 
38 
23 
16 
35 
Modified Segments. — ^. The eight sternite is widest below. The manubrium (M) 
is broad, the apex being ventrally rounded. The hairy process (P 1 ) ot the clasper 
(PI. II, Fig. 1 8) is of nearly even width throughout, being elbowed proximally of middle. 
The second process (P 2 ) is angulate ventrally before the apex. The finger (F) is, beyond 
the middle, abruptly curved upwards. The ventral horizontal portion of the ninth 
sternite (ix. st.) is slightly curved upwards, being produced at the apex into a short 
hook which points downwards. 
