COLEOPTERA 265 



(28) Cis longipennis Blackb. 



Cis longipennis Blackburn, Tr. Dublin Soc. 1885, p. 162. 



Hab. Kauai. ' A single specimen was found in dry wood on the mountains.' 

 (Blackburn.) We have not met with this species, which must be very closely allied to 

 the following. 



(29) Cis angustiformis, sp. nov. 



Angustus, elongatus, parum convexus, fusco-niger ad colorem testaceum varians, 

 pronoto nonnunquam testaceo, C. laeticulo cognatissimus, sed elytris sat evidenter 

 longioribus distinguendus. Long. r2— i"5mm. 



Very closely allied to C. laetiadus, with which it agrees in the obsolete, or nearly 

 obsolete, sculpture, and in having the hinder prothoracic angles a little acute and 

 prominent. Darker examples are concolorous, except that the apices of the elytra are 

 generally a little paler ; the paler individuals have the elytra of a fusco-testaceous 

 colour, and the prothorax rather clear testaceous, so that there is some contrast between 

 the colour of these parts, but it is not so striking as in typical C. laetiadus, while the 

 darker specimens resemble the Lanai form of this species. It cannot however be 

 treated as a form of C. laeticuhis, as the elytra are decidedly longer in proportion to 

 their width, indeed the great elongation of the insect is quite remarkable. 



Hab. Oahu. Seven examples were taken in company in theWaianae mountains, 

 at an elevation of 3000 ft. 



Apterocis, gen. nov. 



Forma ovali, fortissime transversim et longitudinaliter convexa, metasterno parum 

 elongate, alls nullis. 



Allied to Cis with the antennae &c. similarly formed, but of oval shape, and 

 extremely convex longitudinally and transversely. The species are wingless and the 

 metasternum is shorter than in Cis. There are no processes on the front of the head 

 of the ^ in any of the species known, but this sex may be known, in many of the 

 species at least, by the presence of a tubercle on the basal abdominal segment 

 beneath. 



(i) Apterocis ephistemoides Sharp. 



Cis ephistemoides Sharp, Tr. Dublin Soc. 1S85, p. 165, Plate IV. fig. 21. 

 This species varies greatly in size and in some examples a few long hairs can be 

 detected at the sides of the elytra. Length i — 2 mm. 

 Hab. Common generally in the mountains. 



