COLEOPTERA 261 



(17) Cis signatus Sharp. 



Cis signattis Sharp, Tr. Ent. Soc. Lond. 1879, p. 92. 



Cis attenuahis Shp., Tr. Dublin Soc. 1885, p. i65 = var. of C. signatus. 



(Plate X. figs. 20, 20 «, 20 b and 20 r.) 



Extremely variable in colour. The palest examples are nearly entirely testaceous, 

 having only two or four dark spots on the elytra, one example indeed apparently 

 referable to this species is entirely immaculate. The darkest individuals are black with 

 only the anterior and posterior margins of the prothorax, and two spots near the apex 

 and one on the suture of the elytra in front of these, testaceous, so that probably entirely 

 black examples of the species may occur. The prothorax is not infrequendy of an 

 entirely testaceous colour, and is much wider in some examples than in others. Cis 

 attenuatus Shp. is no doubt a variety of this species. The puncturation of the elytra is 

 a little stronger in some examples than is usually the case. Length vix \'^ — 2 '25 mm. 



Hab. Taken on all the islands, commonly on Maui, Lanai and Hawaii, from 

 1500 — 5000 ft. in the mountains. 



(18) Cis 7-oridns Sharp. 



Cis roi-idus Sharp, Tr. Dublin Soc. 1885, p. 165. 



Apparently most nearly allied to C. signatus but differing in colour &c. and 

 with a stronger sculpture. It varies considerably in size, but not very greatly in other 

 respects. Length i "6 — 2*2 mm. 



Hab. Most, and probably all, of the islands. A series was obtained in Kona, 

 Hawaii (4000 — -5000 ft.), and we have taken it on Kauai, Molokai and Lanai. 



(19) Cis kaiiaiensis, sp. nov. 



Testaceus, capite nigro, elytris maculis compluribus plus minusve conjunctis 

 variegatis, setis nullis vestitus, minus fortiter convexus. Pronotum rufo-testaceum, 

 densissime punctatum, postice evidenter utrinque subimpressum. Elytra dense fortiter- 

 que rugoso-punctata, macula nigra humerali, aliisque compluribus ad media plus minusve 

 conjunctis, ornata. subnitida et nuda. Long. 2 "6 mm. 



A very distinct species somewhat allied to C. signatus, but more convex, with 

 different markings, much stronger and coarser puncturation, and apparently with no 

 trace of setae on the elytra or prothorax. Curiously enough the peculiar elytral 

 markings are almost, if not quite, identical with those of some examples of Apterocis 

 variegatus and A. ornatipennis. The scutellum is very distinct, and the wings are fully 

 developed. The prothorax is very finely, but distinctly, margined at the sides, but not 

 at all posteriorly. The surface of the elytra is distinctly shining between the dense and 

 somewhat coarse punctures. 



Hab. Kauai. A single example was taken on the high plateau (4000 ft.). 



34—2 



