252 MR. F. P. PASCOE ON THE COLEOPTERA OF PENANG. [May 8, 



species extend from Assam to Flores. Mr. Wallace's specimen from 

 the latter is an additional variety or subspecies. 



Gnoma. 



Gnoma, Fabricius, Syst. Eleutb. ii. p. 315. 



Gnoma dispersa. 



G. fuscescens, pube brevi grisea tecta ; elytris pallide ochraceo 

 irroratis, prothorace duplo longioribus. 



Brownish, inclining to dark chestnut, -with a thin short greyish pile, 

 the elytra sprinkled with more or less confluent pale-ochreous spots ; 

 head sparingly punctured in front, varied with flavous above the 

 eyes and mouth ; prothorax about half as long as the elytra in the 

 male, strongly corrugated ; scutellum semicircular, entirely pubes- 

 cent ; elytra rather narrow, the sides nearly parallel, except at the 

 posterior third, rather closely punctured ; body beneath, legs, and 

 antennae with a sparse greyish pile, the tarsi nearly equal in size and 

 outline. Length 10 lines. 



This description is made from a male in my own collection. Mr. 

 Lamb has only a single specimen, also a male, differing from the above 

 in having the elytra more spotted, a little longer prothorax, and very 

 decidedly longer legs, with the fore tarsi considerably longer and 

 broader than the others. It may probably be found to be suffi- 

 ciently well marked to deserve a specific, or ^Ma^-specific, name ; 

 but in a genus so difficult as Gnoma it is almost impossible to say if 

 such differences are permanent. I have never seen anything answer- 

 ing to Fabricius's description of G. longicollis : "nigra, ferrugineo 

 irrorata." Olivier's figure (to which he refers) is, to me, an unknown 

 species, and evidently a female. 



Mecotagus. 



Prothorax subcylindricus, latera hand, velparum antice, incurvata. 



Femora Unearia. 



Tarsi articulo basali duobus sequentibus simul sumptis eeqnali. 



Head subtransverse in front ; antennary tubers very stout, diver- 

 gent, but approximate at the base. Eyes distant from the mouth. 

 Antennae very long in the male, the scape obconic, the third joint 

 as long as or longer than the fourth and fifth together, the rest sub- 

 equal in the male, except that the last is considerably longer than 

 the preceding joint ; in the female the joints slightly decreasing from 

 the sixth or seventh. Prothorax elongate, especially in the male, 

 subcylindrical, narrower anteriorly in the male, but scarcely or only 

 very slightly incurved. Elytra oblong, subdepressed, truncate at 

 the apex. Legs long, slender ; femora linear ; tibiae gradually 

 longer from the posterior to the anterior ; tarsi elongate, the basal 

 joint in the male as long as the two following together. Prosternum 

 simple. Mesosternum with a projecting tooth. 



This genus is founded on the Cerambyx tigrinus, Olivier, a con- 



