142 rOEFICULIDyE. 



This genus is formed for the reception of those species hitherto 

 included in ChelisocJies, which ai"e characterized by the smooth upper 

 surface of the tibial ; otherwise the species agree \a ith true 

 CheUsoches. 



It is noteworthy that in this genus the female often has well- 

 marked characters in the pygidium and forceps. 



Table of Species. 



1. Last dorsal segment of S with two 

 strong prominent crested tubercles ; 

 forceps of 5 elongate, with two sharp 



teeth shelfordi, Burr, p. 142. 



1.1. Last dorsal segment of J with no 

 prominent tubercles ; forceps of $ 

 without strong teeth. 

 2. Pronotum parallel - sided ; head 



strongly sinuate posteriorly dravidius, sp. n., p. 143. 



2.2. Pronotum widened posteriorly ; 

 head not strongly sinuate pos- 

 teriorly. 

 3. Elytra and wings with brilliant 

 green metallic sheeu ; pygidium 



of 5 lanceolate, acute (jlmicopterus, Borm., p. 144. 



3.3. Elytra and wings dull black ; 

 pygidium of 2 truncate or bifid. 

 4. Pygidium of 5 bifid at apex . . nic/rocasfaneus, sp. n., p. 145. 

 4.4. Pygidium of $ truncate at apex tetiebrator, Kirby, p. 146. 



86. Adiathetus shelfordi, Bun: 



Chelisoches slielfordi. Bun; (00') p. 96, pi. 4. fig. 4, (05) p. 496. 

 Chelisochella shelfordi, Kirby, (04) p. 35. 



Chelisoches hercules, Bun; (00^) p. 97, pi. 4. figs. 2, 2 a, (08^) p. 116. 

 Adiathetus shelfordi. Bun; (07^) p. 133. 



Large and robust ; general colour reddish black ; the whole 

 body clad with a golden pubescence ; the elytra bright purple. 

 Antennae with 20 segments ; third almost cylindrical ; fourth 

 ovate, about half as long as third; fifth cylindrical, as long as third ; 

 the rest gradually lengthening ; black, with two or three yellowish 

 segments before the apex. Head quadrate, tumid, sutures fairly 

 distinct ; reddish black. Eyes prominent, black. Pronotutu 

 almost square, anterior margin and sides straight, hinder margin 

 rounded, brownish black ; prozoua tumid, with an impression on 

 each side and a median sulcus ; metazona depressed, with a faint 

 median line. Sternal plates brown, rather broad, truncate pos- 

 teriorly. Elytra ample, strongly rounded at the shoulders, finely 

 granulose, with a brilliant purple sheen. Wings like the elytra 

 in texture and colour. Legs long and slender ; femora and tibiae 

 dark brown, the tarsi paler ; tibiae smooth above ; tarsi long, third 



