36 CET01CIIN.5:. 



Geims MYCTERISTES. 



Mycteristes, Cast., Hist. Nat. ii, 1840, p. 162. 

 Prigouia, Mohnike, Arcli.f. Xatur. xxvii, 1871, p. 228. 

 Cephalocosmua, Kraatz, Deutsche Ent. Zeitschr. 1895, p. 100. 



Type, GoUathiis rhinoplinllus, Wied. (Java). 



Range. jS". India, Burma, Malayan Eegion. 



Form slender, with rather long legs and the front tibia) sharply 

 three-toothed in both sexes. Prothorax much narrower at the 

 shoulders than the elytra, wider in the middle than at tlie base, 

 and having a very short basal lobe. Scutellar region slightly 

 depressed. Scutellum rather sharp at the apex, with the sides 

 bisiuuate. Elytra scarcely sinuated behind the shoulders. Meso- 

 sternum very slightly prominent between the coxa?. Labrum 

 minute, moderately chitinised, bilobed. Mandibles minute, with 

 the chitinous lateral lobe feeble, blunt, and not reaching much 

 beyond the broad basal membrane. Maxillae strong, armed with 

 tliree very sharp and slender teeth set at right angles, and 

 terminating in a long and thick tuft of hairs ; palpi rather slender, 

 with the terminal joint as long as the others together. Mentum 

 elongate, bilobed but not dilated in front ; palpi moderately 

 slender. 



The 6 has the head excavated above and the clypeal margin 

 produced into two lateral, or a single median, horn. The front 

 tibiae and all the tarsi are longer than in the $ and the abdomen 

 is longitudinally channelled beneath. 



The 5 has the head flat and the clypeus bidentate, and the legs 

 are of normal length. 



In some of the species, although not in those represented in our 

 urea, the male bears a horn upon the thorax. 



Keif to the Species. 



1 (2) Head of S firmed with two straight 



bonis khasiana, Jord., p. 36. 



2 (1) Head of S armed with one dilated 



horn. 



y (6) Front angles of the clypeus produced 



in S • [P- 3". 



4 (o) Pronotam evenly and finely strigose inicrophyllas, Wood-Mason, 



f) (4) Pronotum rugos(>ly punctured .... t/esfroi, sp. u., p. 38. 



(3) Front angles of tli'.' clypeus not pro- 

 duced in d aun'tus, sp. n., p. 39. 



2. Mycteristes khasiana. 



Prigenia khasiana, Jordan,* Nov. Zoo!, i, 1894, p. 091. 



Obscurely coppery, opaque above and shining beneath ; thinly 

 clothed with decumbent grey setae above and more closely with 

 short whitish hairs beneath. 



