igiS-] F- H. GraveIvY : Coleoptera, IX. 527 



Length 23'0-28-5 mm. Like 5. dentipes,^ Gebien, above and 

 below, but with less distinctly striate elytra. 



The appendages also resemble those of S. dentipes, except that 

 the tooth on the posterior femur, which is perhaps hardly as strong 

 in the male, is absent in the female. 



Tonkinius striatipennis, n. sp. 

 (Plate xliii, fig. 8.) 



Above Pangi, 4000 ft., Abor Country, i6-i-i2. One speci- 

 men found under bark. 



A dull black insect, not unlike T. sculptilis, Fairm., in general 

 appearance. Length 17 mm. 



The head resembles that of T. sculptilis. 



The pYonotuni is slightly broader than in that species, and has 

 more evenly rounded sides. The median groove is complete and 

 very pronounced. On either side of this groove the pronotum 

 is thrown into four distinct longitudinal ridges of which the outer- 

 most does not reach the posterior margin. 



The scutelluni resembles that of T. sculptilis. 



The grooves of the elytra are very broad and dull, with large 

 shallow punctures ; all the ridges between them are keeled, the 

 third and fourth being polished and somewhat more pronounced 

 than the others. 



The lower surface of the body , the antennae and the legs resemble 

 those of T. sculptilis. 



Encyalesthus exularis, Geb. 



Gebien based his description of this species {Arch. Naturg. 

 LXXIX (A), 1913, pp. 31-32) on specimens collected by Dr. Sauter 

 in Formosa, and on those collected by Mr. Kemp from under bark 

 at Sadiya in N.-E. Assam (21-xi-ii) and at Rotung, 1400 ft., in the 

 Abor Country (28-xii-ii). 



Encyalesthus stevensi, n. sp. 

 (Plate xliii, fig. 5.) 



Dejoo, base of hills, North Lakhimpur. One specimen, collect- 

 ed by Mr. Stevens. 



A black Setenis-Vike insect. Length i8'2 mm. 



The head is longer in front of the eyes than is that of E. 

 exularis, and is lightly concave in front of the canthus. Its surface 

 is more finely punctured, and the eyes do not extend so far back. 



The pronotum is somewhat flatter and more coarsely punctured 

 than is that of E. exularis which it resembles in other respects. 



' Described in Sarawak Museum Journal II, pp. 35-37. pi. i, fig- 9> since the 

 publication of the " Cataloo-ue." 



