Mr. C. J. Gahan on new Coleoptera. 393 



greyish, with the tibige ringed in the middle with brown ; the 

 femora incrassate towards the middle, where they are almost 

 bare of pubescence ; the tibiae are entire. The sternal pro- 

 cesses simple. 



Monohammus jaer plexus J n. sp. 

 M. bifasciato simillimus, sed elytris nee fasciatis nee maculatis. 



Hab. N. India. 



Two male specimens in the collection, agreeing remarkably 

 well in other respects with the figure and description of M. 

 bifasctatus, Westw., but wanting the fasciee of that species. 

 The underside of the body has a greyish-yellow pubescence, 

 similar to that on the upper side and on the elytra. The 

 femora have a pubescence partly yellowish and partly greyish. 

 There is a black vitta covered with a thin greyish pile on 

 each side of the prothorax ; the vitta passing over the lateral 

 spine. The shoulders and the outer margins of the elytra 

 are also black, with a similar feeble grey pubescence. The 

 scutellum is greyish, and not distinctly black as in the figure 

 of Westwood's species. 



Notwithstanding these differences, I am inclined to think 

 that the form is at most but a variety of M. bifhsciatus, 

 and the suggestion even occurs to me that possibly the type 

 of Mr. Westwood's species was a specimen in which the 

 fascige were artificially produced by rubbing. The existence, 

 however, of a closely allied species — M. sulphurifer^ Hope — 

 in which there is a distinct hXadk pubescent s>^^oi on the middle 

 of each elytron is against this suggestion. 



Monohammus vagus ^ n. sp. 



Breviter brunneo-pubescens ; capita, fronte, vertice genisque sparse 

 punctatis ; prothoracis disco lateribusque pimctatis ; elytris ad 

 basin minute granulosis, delude usque apicem punctulatis, utrin- 

 que macula fusca pone medium, apicibus rotundatis ; antennis 

 ( J ) corpore plus quam duplo lougioribus, articulo tertio incras- 

 sate leviter arcuate, ( 5 ) corpore paullo lougioribus. 



Long. 25-29 mm,, lat. 8-9^ mm. 



Hab. Gaboon? 



Head with the mandibles black, the palpi ferruginous 

 brown, with a short yellowish-brown pubescence and sparse 

 punctures on the front, vertex, and cheeks. Prothorax with 

 a rather sparse fulvous pubescence, with three feeble tubercles 

 on the disk ; the latter, as well as the sides of the prothorax, 



