70 Memoirs of the Indian Museum. [Vol. VII, 



inner tubercles, which are directed obliquely upwards and are in contact anteriorly with 

 the still larger, but more forwardly directed outer tubercles. The outer tubercles are 

 separated by a distance which is less than the width of the labrum ; they are equidistant from 

 each other and from the tubercles on the inner side of the fronto-vertical suture, which are 

 almost equally large. The clypeus is exposed, but is directed almost vertically downwards. 

 The pronotum is slightly wider behind than in front, and its anterior angles 

 are obtuse. Its anterior margin is straight, and its posterior margin lightly convex. 

 The marginal groove is somewhat widely incomplete in front, and is strongly punctured. 

 The median groove is strong and complete. The scars are punctured, and there may be a 

 few punctures in the anterior angles. The surface of the prothorax is closely punctured 

 and hairy, but the hair is not very long. The mesosternum is smooth and glossy, with 

 large and deeply impressed roughened scars. The anterior intermediate areas of the 

 metasternum are somewhat coarsely and sparsely, and the lateral areas more finely 

 and densely punctured and hairy, the latter being, however, to some extent roughened 

 and hairless behind. A somewhat extensive patch of close, coarse, hairless punctures is 

 present beside the posterior margin of the posterior intermediate areas, and a band 

 of finer hair-bearing punctures extends from behind this patch outwards along the 

 posterior margin to the posterior angles. The elytra are hairless, with the lateral 

 grooves strongly and the dorsal somewhat more weakly punctured. 



Fig. VIII. 

 Solenocyclinae ; specific characters in the upper surface of the head x 4. 



1. Malagasalus clypeatus, Gravely. 4. Eriomomus trichostigmoides, Gravely. 



2. Solenocyclus exaratus (Klug). 5. Erionomus planiceps (Eshscholtz). 



3. Pentalobus punctipectis (Kaup). 



Genus SOLENOCYCLUS, Kaup, 1868a, p. 10. 



Inch Ciceronius+Semicyclus, Kaup, 1871. Also Flaminus+Vitellinus, 



Kuwert. 



Type, Passalus exaratus, Klug, 1832, p. 173. 



Solenocyclus approximate (Klug). 



Passalus approximates, Klug, 1832, p. 174. 



Passalus approximates, Percheron, 1841, pp. 16-17, pi. lxxvii, fig. 5. 



Six specimens from Madagascar, five of them being from Fenerive. Length 26-5-29-0 

 mm. 



The clypeus is hidden. The inner tubercles are smaller than in Malagasalus clypeatus,. 

 and are situated at a greater distance behind the outer tubercles, which are larger.. 



