378 DR. G. A. K. MARSHAL!/ ON THE SPECIES 



10. Balaninus gyrosicollis, sp. n. (PI. II. fig. 2.) 



c? $ . Dull black, clothed above with narrow dark brown scales 

 mottled with whitish ones, and with a faint central paler stripe 

 on the pronotum ; beneath, with separated narrow whitish scales 

 throughout, and without any of the usual dense patches of 

 broader scales. 



Head with the rostrum arising from well above the middle of 

 the eye in both sexes, its upper surface being on a level with the 

 top of the eye ( cf ) or a little below it ( $ ). Rostrum — J , two- 

 thirds the length of the body, rather coarsely and confl.uently 

 punctate in the basal section, without any smooth central line, 

 but with a very shallow broad lateral furrow reaching the 

 antenna and bounded below by a distinct carina, the scrobe 

 passing beneath the base of the rostrum and extending shortly 

 beyond the antenna ; $ , seven-eighths the length of the body, 

 the lateral furrow scarcely shorter, and the punctures rather 

 finer. Antennce inserted behind the middle of the rostrum in 

 both sexes, the scape not reaching the eye ; the f unicle with the 

 two basal joints equal, 3 slightly longer than 4, 5-7 a little 

 shorter and equal in length ; the club short, ovate, as long as the 

 two preceding joints, joint 1 slightly longer than 2, and 2 than 3, 

 Prothorax slightly broader than long (6 : 5), broadest at the base, 

 the sides rather strongly rounded, with a distinct apical constric- 

 tion, the apical margin truncate dorsally and without postocular 

 lobes : on the upper surface the reticulate punctures have coalesced 

 so that the intei"Sj)aces form numerous fine sinuous ridges. 

 Scutellum longer than broad, with fairly dense pale setiform 

 scales. Elytra elongate (4 x 3), the margins distinctly sinuate, 

 the apices jointly rounded ; the basal sutural impression com- 

 paratively shallow and asymmetrical, being almost entirely con- 

 fined to interval 1 on the right elytron, the apical portion of the 

 suture without raised setse ; striae 9 and 10 not reaching the base. 

 Legs moderately long, the hind femora slightly exceeding the end 

 of the elytra, the femoral teeth sharp and spine-like, the tibiae 

 with the basal sinuation feeble and clothed only with setiform 

 scales. Venter with segment 1 shorter than 2 behind the coxae. 



Length, 5"8-6"4 mm. ; breadth, 2"4-3 mm. 



Sarawak: 3 c? c? , 2 $ 5 , Quop, iv. 1914 (types), and 2 J c? , 

 Puak, V. 1914 ((y. E. Bryant). 



The sculpture of the pronotum and the short antennal club are 

 very distinctive characters. 



11. Balaninus nigrocinereus, sp. n. (PL I. fig. 5.) 



S $ . Colour dull black, the upper surface covered with rather 

 sparse short hair-like white scales (producing a dull grey effect) 

 and with the following black patches on which the scales are 

 dark : the forehead and vertex of the head, a large triangular 

 patch in the middle of the base of the pronotum, a transverse 



