48 ARKIV FÖR ZOOLOGI. BAND 2. N:0 S. 



lower side exceedingly obtuse. rounded, a good deal longer 

 from the distal than from the proximal end of the upper 

 margin of the joint. Patella slightly more than two and a 

 half times longer than deep. Claw very sliort, only one third 

 as long as the upper margin of tarsus. 



First Legs. — Moderately slender in both sexes, but con- 

 siderably longer in the male than in the female. — Male 

 (fig. 3b): Scarcely ^/2 as long as the body. Coxa terminates 

 a little behind the outer angle of the mandible. Femur very 

 little longer than tibia. Foot a little more than ^/4 as long 

 as tibia, nine times longer than deep, deepest before the end 

 of metatarsus (fig. 3c); second metatarsal joint a little shorter 

 than the sum of the five proximal tarsal joints; terminal joint 

 a little shorter than the sum of the three proximal tarsal 

 joints and scarcely more than half as long as the whole me- 

 tatarsus. — Female (fig. 3d): Legs slightly longer than the 

 body; coxa terminates somewhat behind the outer angle of 

 the mandible; foot very little shorter than tibia, otherwise 

 nearly as in the male. 



Fourtli Leg-s. — In the male a little longer than the body 

 and a little longer than in the female, in which they are a 

 little shorter than the body. Femur in both sexes deep, only 

 a little more than twice as long as deep (fig. 3f). 



Three posterior alxlominal Segments. — Similarly with- 

 drawn in both sexes, but considerably thicker in the male 

 (fig. 3g) than in the female (fig. 3 i); in the male the dorsal 

 portion of the wall of the last segment is produced a little 

 backwards as a short, moderately broad plate. 



Flagellum. — Male (figs. 3g and 3h): Eather deep and 

 strongly widened. nearly two thirds as broad as long. The 

 stalk is rather long and considerably compressed. Seen from 

 above, the main piece is slightly longer than broad, nearly 

 rhombic, with the proximal sides of the rhomb somewhat 

 convex, the distal sides nearly straight, the end forming a 

 very obtuse angle; on the distal half of the upper surface a 

 deep, transveröe, strongly curved depression is observed. Seen 

 from the side, the main piece is almost more than half as 

 deep as long, the upper margin with a sharp triangulär in- 

 cision arising from the above-named depression, and the lower 

 margin more convex than the upper. Some of the setse are 

 long, the longest nearly ■'.:> as long as flagellum. — Female 



