250 Dr. G. A. K. Marshall on a 



4. Platymycterus marmoratus, Fst. 



Platytrachelus marmoratus, Fst. Hor. Soc. Ent. Ross. xvi. 1882, 



p. 303. 

 Corigetus khirgisicus, Fst. Deut. Ent. Zeit. 1885, p. 170. 



Transcaspia. 



5. Platymycterus armiger, Fst. 

 Corigetus armiger, Fst. Deut. Ent. Zeit. 1885, p. 173. 

 E. Bokhara. 



6. Platymycterus turkest aniens, Fst. 



Corigetus turkestanicus, Fst. Deut, Ent. Zeit. 1885, p. 174. 



7. Platymycterus mcestus, sp. n. 



? . Colour black, with dense sandy grey or brownish 

 scaling above and below. Sometimes with a faint pinkish 

 metallic reflexion ; three very indistinct darker stripes on 

 the prothorax. 



Head with the eyes much flatter than in any other species. 

 Rostrum as long as broad, the sides straight and almost 

 parallel, the scrobe evidently shorter than the space between 

 it and the eye, the dorsal sulci moderately deep, the two 

 discal carinse only slightly diverging behind, the base of each 

 being a little nearer to the eye than to the central carina, 

 the lateral area in front of the eye longitudinally wrinkled. 

 Antennae with the two basal joints of the fimicle equal. 

 Prothorax with the sides straight from the base for four- 

 fifths the length, then slightly curved in at the apex, the 

 apical width about equal to the length of the side, the basal 

 margin not quite so deeply sinuate as in P. fece and the 

 postocular lobe distinctly more pronounced ; the punctation 

 closer, but partly concealed by the very dense scaling, with 

 a rounded impression on each side behind the middle and 

 no denuded central line, the longitudinal outline almost 

 flat. Elytra with well-marked angulate shoulders, the 

 humeral slope forming a strong angle with the side of the 

 prothorax; the punctures in the strise narrow and elongate, 

 each containing a minute recumbent seta, strise 5 and 6 

 almost or quite uniting at the base ; the intervals gently 

 convex, with short recumbent scale-like setse. 

 Length 6-7 mm., breadth 2|-3 mm. 

 India (no exact locality). 



