312 LoTtgicornia Malay ana. 



criminate so far as regards the males, and the females, as it appears 

 to me, are absolutely undistinguishable. Scarcely any of the 

 characters appear to be permanent, and all the specimens, so far 

 as I have noticed them, may be divided into two categories, each 

 of which might be conveniently considered to represent one very 

 variable species — Gnonia giraffa, Schreib., representing the long- 

 necked black category, and Gnoma sticticollls, J. Thoms., the 

 shorter-necked brownish and spotted category. It will be very 

 difficult to ascertain what are the really permanent species with 

 our present data. The following descriptions apply exclusively 

 to the males ; the females have always shorter necks, legs and an- 

 tennae, and the elytra broader and more parallel, and often more 

 varied with white than the males. 



Gnoma giraffa. 

 Cerambyx giraffa, Schreibers, Trans. Linn. Soc. 1801, p. 198, 



pi. xxi. fig. 8. 

 Cerambyx longicollis, Olivier, Entom. iv. No. G7, p. 49, pi. xi. 



fig. 63, ($)? (1795). 

 G. nigra, nitida ; elytris basi granulato-punctatis, punctis apicem 



versus gradatim obsoletis. 

 Hab. — Ceram, Amboyna, Matabello. 



Glossy-black, the legs with a blueish, the elytra with a greenish 

 tinge ; head and prothorax together as long as the elytra ; the 

 former with small distant punctures ; prothorax finely corrugated ; 

 scutellum rounded, covered with densely-set white hairs ; elytra 

 moderately broad at the base, thickly set with small granules, which 

 gradually pass into punctures but become smaller and more dis- 

 persed towards the apex, the latter very slightly pubescent; body 

 beneath glossy-black ; antennae more than twice as long as the 

 body, first three joints very rugose. The female is stouter and 

 often spotted with white. 

 Length 14 lines, 



Gnoma agroides, 

 J. Thomson, Essai &c., p. 106. 

 G. nigra, nitida ; prothorace vitta mediana, elytris macula 



humerali suturaque albis ; his angustatis. 

 Hab. — Batchian, Gilolo, Kaioa, Makian, Menado, Ternate. 

 Glossy-black, stripe on the middle of the prothorax, a spot 

 at the base of the elytra near the shoulder, the suture, and often 



