COLEOPTERA. 273 



but are distinguished from them, as well as from all other analogous 

 subgenera, by their internal maxillary palpi, which are very small 

 and acicular. The tarsi are similar in both sexes, with the penulti- 

 mate joint cordate, unemarginate, and simply excavated above for 

 the insertion of the last. 



These Insects are exclusively proper to the most eastern islands 

 of Asia, as Java, those of Sunda, and such as are to the north of 

 New Holland.(l) 



In the two following subgenera, both proper to the East Indies, 

 or the remotest of the Oriental islands, the body is narrow and elon- 

 gated, and the thorax almost cylindrical, or in the form of a knot. 

 The third and fourth joint of the tarsi is prolonged interiorly in the 

 manner of a lobe. 



CoLLiURis, Lat. — Collyris, Fab. 



Furnished with wings; antennae thickest near the end; last joint 

 of the labial palpi almost securiform, and the penultimate frequently 

 curved; thorax nearly cylindrical, narrowed and strangulated before, 

 with the anterior margin widened; abdomen almost cylindrical, 

 widened and enlarged posteriorly; tarsi similar in both sexes, the 

 penultimate joint prolonged obliquely on the inner side, as large as 

 the preceding one; the latter in the form of a reversed triangle with 

 acute angles(2). 



Tricondyla, Lat. 



Destitute of wings; antennae filiform; penultimate joint of the 

 labial palpi longest and thickest; thorax in the form of a knot, sub- 

 ovoid, strangulated, truncated, and turned up at both ends; abdomen 

 oval, oblong, narrowed towards the base, and slightly gibbous pos- 

 teriorly; three first joints of the anterior tarsi dilated in the males, 

 the third obliquely prolonged on the inner side in the manner of a 

 lobe; the fourth nearly similar, but much smaller and less prolong- 

 ed(3). 



The second tribe, or the Carabict, Lat., comprehends the 

 genus 



(1) See Lat, Dej. Hist. Nat. rles Coleop. d'Eur., fascic. I, p. G3; the Spec. 

 Gen. des Coleop. Dej., I, 57, and the Supp. to vol. II; and particularly the me- 

 moir of Bonelh on this g-eniis. 



(2) See the works just quoted. The species which I have described and fig-ured 

 under the name of longicollis is distinct from the Fabrician species of the same ap- 

 pellation; it is the Colliuris emarginata, Dej., Spec Gener., I, p. 165. 



(."!) Idem. 



Vol. III.— 2 K 



