798 R. I. pococK 



7. A.]ioplo<lesiuus a.ntlxi'a.ciiius, sp. n 



(Fig. 5.) 



Colour pitch black above, browner beneath; the keels and a 

 small posterior part of the adjacent area of the tergite as well 

 as the caudal process fulvous; legs and antennae brunneo-fulvous. 



Head with frontal sulcus. Antennae lightly incrassate, segments 

 2-6 subequal in length. Anterior segments of the body almost 

 as wide as the median. Dorsal surface of body convex, keels rising 

 just above the middle of the sides. Keels of the P* depressed fol- 

 lowing the slope of the dorsum, well developed, triangular, with 

 anterior border lightly convex and margined, posterior border 

 nearly straight. Keel of 2""^ large, almost on a level with that 

 of the 2°'* and S'^, larger than the latter. Keels from the 8'" 

 backwards small, thick, with anterior and posterior angles 

 rounded, convex lateral border, posterior border straight and in 

 a line with the hinder border of the tergite, the posterior angles 

 square in the hinder half of the body but not projecting poste- 

 riorly beyond the level of the tergite, keels of the 19"* segment 

 tuberculiform. The transverse sulcus extending from the 5'" to 

 the 18'", not sculptured ; the constriction at the base of the 

 cylindrical portion very finely beaded. Caudal process cylindrical, 

 with bluntly rounded apex. 



Lateral surface of segments finely granular or rugulose. The 

 inferior crest distinct and complete as far as the 9"" then gra- 

 dually becoming obsolete. Sterna narrowish, rather deeply sulcata 

 transversely. Afial sternite convexly triangular, the two tubercles 

 far from its posterior edge. 



Length about 34 mm. ; width 5. 



(/•. Narrower than 9 but with better developed and higher 

 keels. The anterior legs a little thickened ; the femora of those 

 of the 5'" and 6'" somites with an inferior thickening, this 

 thickening very large on the posterior leg of the 6'" and scarcely 

 noticeable on the front leg of the 8"'. A low, weakly bilobed 



