Longicornia Malayana. 321 



outline resembles a Phalangium, has been long known, and is 

 rather local and exceptional in its habitat, but wherever it occurs 

 it seems to appear in large numbers. The female has shorter 

 legs and antennae than the male, but otherwise scarcely differs. 

 It must have been this sex that was described by Fabricius from 

 a specimen in the collection of Bosc. As I am not aware of the 

 existence of any figure of the species, I have given one of the male. 



Gerania Boscii. (PI. XIV. fig. 7). 

 Sapcrda Boscii, Fabricius, Syst. Eleut. ii. 323. 



G. albo-pubescens, maculis brunneis vel fuscis varia. 



Sab. — Java, Malacca, Lombok, (and Siam). 



Closely covered with a pure white, or sometimes dingy-white, 

 somewhat coarse pubescence, with intervals of reddish-brown or 

 dark-brown spots of the derm clothed only with a very delicate 

 pubescence ; head with two spots on the forehead and two on 

 the vertex ; prothorax with three spots on the disk, and two on 

 each side ; spots on the elytra more or less united so as to form four 

 irregular bands, or the two posterior bands by their union forming 

 only one ; body beneath, legs and antennae black, with a short 

 delicate pubescence. 



Length 8 lines; anterior legs (^) 24 lines; antennaa ($) about 

 25 lines. 



ONOCEPHALINiE. 



This sub-family exactly accords with M. J. Thomson's 14th 

 "groupe," as defined and limited by him in the " Essai" (p. 120), 

 so far as its members were at that time known. It was there 

 composed of the four genera Gryllica, Pachypeza, Ischioloncha 

 and Onocephala. In the more recent '' Systema" he makes it a 

 " division" of his " groupe" Hippopsitce, retaining of the above 

 on]y Onocephala, and adding two new forms — Atossa and Apechthes. 



The form and position of the head is the most salient character 

 of the Onocephalince ; in the typical genus Onocephala, it is 

 rather large, produced and contracted above, so that the antennary 

 tubers are nearly or quite contiguous, dilated and prolonged 

 below the eyes which are small in proportion, and is bent in- 

 wards so that the face is more or less in a line with the under 

 surface. The antennae vary in length, but they are generally 

 either pilose or fimbriated beneath, with the scape almost perfectly 

 cylindrical and without a cicatrix ; the legs are either of moderate 

 length, or so short as not to extend beyond the extremity of the 



VOL. III. THIRD SERIES, PART III. — SEPT. 1866. Y 



