8() ICHTHYURUS SUTURALIS. 



curved and as well as tHe apical lialf of the f emorae covered 

 beneath with long black hairs. The intermediate trochanters 

 bifid , the inner tooth sharply' pointed , the outer and longer 

 one compressed and obliquely emarginated at the apex; 

 the intermediate femorae incrassate , slightly excavated within 

 and strongly compressed beneath; the under margin angu- 

 lar , the basal portion concave , then very minutely serrated 

 and inwardly with a row of short ribs; the intermediate 

 tibiae about as long as the intermediate tarsi, compressed, 

 turned at the apex. The abdomen somewhat narrowed 

 towards the apex ; the apical segment at its base narrower 

 than the penultimate , about twice as long as broad at the 

 base ; its sides divergent , very slightly waved ; the incision 

 angular , reaching the centre of the segment , its sides 

 curved outwardly ; the under surface of the apical segment 

 divided by a longitudinal deep gutter; on each side of 

 the gutter a flattened portion which is striated longitudi- 

 nally and limited laterally by a raised straight line; the 

 inner margin of the flattened portions terminating in a 

 very compressed acute edge , obliquely directed inwards ; 

 the space between these edges and the tail-tips sinuated. 



Female. Difi:ering from the male in having the middle 

 of the posterior margin of the prothorax and the shoulders 

 black. The legs are black, with the apex of the posterior 

 coxae yellow , and the anterior and posterior trochanters as 

 well as the extreme base of the posterior tibiae brown. 



The vertex of the head more slightly impressed and with 

 a fine longitudinal line across the middle; the scape of 

 the antennae without the small tubercle. The narrowed 

 portion of the elytra broader. The legs simple. The apical 

 segment of the abdomen not quite twice as long as broad 

 at its base, its sides parallel, slightly convex before the 

 middle ; the incision semi-oval , not angular , reaching the 

 centre of the segment; the disc with a broad, arched im- 

 pression before the incision; the under surface simple; the 

 under margin of the anus slightly tri-emarginate , the 

 inner emargination with two lateral acute teeth. 

 Notes from the Leyden Museum- 



