1857.] Entomological Papers. 135 



triangular with the external apical angle strongly prolonged. 2 and 

 3 are almost equal, transversely ovato — subcordiform, 2 slightly but 

 distinctly prolonged at the external apical angle, 3 less so, but still 

 prolonged, 4 small, cordiform, 5 long subcylindric, joints 1-4 with 2 

 spines at the apical angles, these spines removed in the 5th the one 

 to a subapical and the other to a position at the middle ; in joints 

 1-3 these spines are shorter and thicker at the outer angle than at 

 the inner, in the 4th this difference is scarcely observable and in 

 the last it does not exist ; the claws are strong and simple. The 

 intermediate tarsi are elongated, joint 1 triangular, 2 and 3 nearly 

 e qual, quadrato — subcordiform, 4 of a similar form but much smaller 

 — all furnished with spines at the apical angles in the manner of the 

 anterior tarsi. The inner side of the apical half of joint 1 and joints 

 2 and 3 with strong brushes of reddish colour bordered by rows of 

 spines, the entire lower surf ace forming one thick brush and not two 

 as in the first pair. The posterior tarsi are still more elongated, 

 joints 1-4 decreasing gradually in size, subcylindric, 5 quite so, all 

 armed like the preceding. The legs of the female are very similar to 

 those of the male, still there is some difference in the tarsi : the 

 brushes are wanting, the anterior pair has joints 1-3 fully as much 

 and 4 more dilated, joints 2-4 are subcordiform, 2-3 rather more 

 prolonged on the outer side than in the male. In the intermediate 

 pair the joints are more distinctly triangular. The prosternum is 

 elliptic, pointed at the apex, or of the shape of a spearhead with the 

 lateral angles rounded off, it is depressed at the sides, strongly 

 marginated (as is also the anterior part of the mesothorax) being 

 furnished with a few thin hairs within the margin. The size of 

 the individuals is no criterion as to their sex, sometimes the female 

 sometimes the male being the largest. 



Regarding the habits of these insects one would feel inclined 

 to suspect them to be of a semiaquatic nature, that is the insects 

 to frequent the banks of rivers or other damp places — however, 

 the direct contrary is the case : they live in the driest, hottest and 

 sandiest places that can be found, ivhere they burrow in the sand 

 exactly in the manner of the ivell known g. of the Amaras. In the 

 course of 6 years I have taken but 2 of these interesting insects, 

 both in the neighbourhood of Negombo, the one in the Cinnamon 



