OF BALANINUS OCCURRING IN BORNEO. 389 



sutural impression is rather shallower and the sntiual bristles 

 less raised. The hind femora only slightly exceed the apex of 

 the elytra. The basal ventral impression in the cJ is much 

 shallower, the apical margin of segment 2 is quite straight and 

 not angulate extei-nally, segments 3 and 4 are transversely 

 convex, and segment 5 is truncate at the apex, with a very 

 shallow median impression and a few erect hairs on each side of 

 it ; the last venti'al segment of the 2 is simple and without any 

 impi"ession. 



I^ength, 3-4 mm. ; breadth, l*6-2'4 mm. 



Sarawak: 7 J c?, 3 5 ? (1 $ on Ekeocmyus), Quop, iii. 1914 

 (G. E. Bryant) ; 1 c? , 1 $ , Puak, v. 1914 {G. E. Bryant, type). 



23. Balaninus deceptor, sp. n. (PL II. fig. 3.) 



S . Dull black, thinl}^ clothed above with small black narrow 

 scales or set^e, and with markings formed of broad white scales ; 

 the pronotum with a narrow transverse basal white patch on 

 each side, almost reaching the mesepimeron externally and stria 5 

 internally ; the elytra Avith a few white scales at the base of 

 interval 1, a narrow transverse band at the base of intervals 2-4 

 (or 5), the portion on 2 being nearly twice as long as the rest, 

 and a narrow sinuate macular white band behind the middle 

 between stria? 1 and 9, the spot on interval 4 being absent and 

 those on 2 and 9 a little longer than the others ; the sternum 

 with separated nari'ow white scales and Avith dense patches of 

 Ijroader scales on the precoxal area of the prosternum (emitting 

 a band up the apical constriction to the level of the middle of the 

 eye), on the mesepimeron, the mesosternal jjrocess, and the apical 

 external angle of the metasternum ; the venter moi'e evenly 

 clothed with broader white scales. 



Yery similar structurally to P. analis, sp. u., and apait from 

 its larger size differing only in the following characters : — The 

 scutellum has a broad and deep V-shaped incision on its anterior 

 margin ; the tooth on the femoiva is triangularly dilated at the 

 base, and the mid femora entirely lack the frnige of hairs on the 

 lower edge ; the narrow scales on the metasternum are not hair- 

 like and raised, but short, recumbent, and trnncately fringed at 

 the apex ; the second ventral segment is not angulate externally, 

 and the fifth is not excised at the apex, but bears a median 

 depression almost concealed by a dense tuft of incurved hairs 

 arising from a low elevation on each side of it ; and the pygidinm 

 is much more exposed. 



B. imitator, sp. n., difi"ers in having the scutellum not or very 

 faintly indented in front ; the first joint of the funicle is slightly 

 longer than the second, and the club is relatively longer ; the 

 hind femora are shorter and the femoral tooth is less dilated at 

 the base ; the basal ventral impression is much shallower and 

 the structure of the fifth venti-al segment is much more simple. 



Length, 5'5 mm. ; breadth, 3 mm. 



Sarawak : 2 6 6 , Puak, iv-v. 1914 (6^, ^, Bryant). 



27^ 



