26o FAUNA HAWAIIENSIS 



well as some shorter erect ones on the thorax, often abraded. The prothorax varies in 

 colour from black to testaceous, and the elytra are sometimes nearly wholly infuscate, 

 rarely entirely testaceous and immaculate. Cis tabidus appears to be most closely allied 

 to the even more variable C. setariiis, and although the colour, prothoracic puncturation 

 &c., are normally different, still it is by no means easy to know to which of the two species 

 certain examples should be assigned. The shape of the prothorax, length and convexity 

 of the elytra &c. appear to vary analogously in either species. 



Hab. Oahu and Kauai. Common. Most and probably all of the islands, 



(15) Cis set arms Sharp. 



Cis setarius Sharp, Tr. Dublin Soc. 1885, p. 162. 



Cis apicalis Shp. loc. cit. ~ var. 



Cis concolor Shp. loc. cit. p. 163 = var. 



A most variable and perplexing species allied to the preceding but darker in 

 colour, often entirely black or castaneous, generally with the anterior or both this and 

 the posterior margin of the prothorax pale, the base of the elytra dark but more or less 

 of the apex often pale, sometimes more than the apical half of a testaceous colour. 

 Fine long hairs can generally be detected at the apex of the wing cases, sometimes also 

 they form a regular but not dense clothing all along the sides, and hairs of a similar 

 character can be detected standing erect on the prothorax. This part is usually 

 shining, strongly but not densely punctured, and the elytra have a large and more 

 or less indefinite puncturation at the base. In some examples the puncturation of 

 the prothorax is extremely fine, and it appears that the species is more or less different 

 according to the locality, but varies much in each. The length of the elytra and their 

 convexity as well as the width of the prothorax are also variable. Length \-2 — 2 mm. 



Hab. Abundant on Hawaii in the mountains, and also found on the other islands 

 including Kauai, so that it is of general distribution. 



(16) Cis caiidtis Sharp. 



Cis calidus Sharp, Tr. Dublin Soc. 1885, p. 164. 



Apparently a rather variable species, the puncturation being denser and more 

 regular both on the prothorax and elytra in some examples than in others. It also 

 varies in size and colour, the latter being sometimes quite black and sometimes 

 castaneous. The dense regular clothing of fine erect setae is easily abraded and then 

 the species is not very easily distinguished from some well clothed individuals of the 

 very variable C. setarius. Length i'^ — -2 mm. 



Hab. Kauai and Oahu. A few examples taken in the mountains. 



