262 FAUNA HAWAIIENSIS 



(20) Cis molokaiensis, sp. nov. 



Niger, brevissime, sed conspicue, griseo-setulosus, pronoto antice posticeque plus 

 minusve testaceo-signato. Pronotiim latum, lateribus fortiter rotundatis, postice baud 

 evidenter marginatum, densissime ruguloso-punctatum. Elytra densissime ruguloso- 

 punctata, punctis ipsis vix discernendis. Metasternum breve. Abdominis segmenta 

 ventralia punctata. Alae nullae (an rudimentariae ?). Long, i "4 — 2 mm. 



This and the following four or five species will probably hereafter be separated 

 generically from the other Hawaiian Cis. As it would appear that Cis signaitcs in 

 certain varieties makes an approach in form to these species, we have not thought it 

 advisable to form a new genus at present, until the question of variation in that species 

 has been thoroughly investigated. Cis molokaiensis on account of its dark colour and 

 grey setulosity somewhat resembles C. po7'cat7is Shp., but it is abundantly distinct 

 therefrom by its stronger sculpture, wider prothorax (which, however, varies in width in 

 different specimens), and more elegant form, as well as by the shorter metasternum and 

 the fact that the wings, if present at all, are rudimentary. There is a faint development 

 of tubercles on the head of the ^, but they are very small compared with those of well- 

 developed C. porcatus. 



Hab. Molokai. High wet forests, Sept. 1893. 



(21) Cis haleakalae, sp. nov. 



Niger, pronoti margine antico, pedibus, antennarumque basi, testaceis, praecedenti 

 affinis sed major et latior, baud evidenter setulosus. Pronotum subtiliter densissime 

 ruguloso-punctatum. Elytra dense ubique rugulosa, punctis ipsis baud vel vix dis- 

 cernendis, lateribus sat rotundatis, apicibus subacuminatis. Long. 2 mm. (Plate X. 



fig- 1 7-) 



Somewhat of the form of the preceding, but with the elytra more rounded at the 

 sides, and more pointed behind. The sculpture of the elytra is very remarkable, being 

 of a finely strigose character. There is little doubt the species is wingless, although we 

 have not been able to investigate this and other points of structure. 



Hab. Maui. A single example on Haleakala (5000 ft). 



(22) Cis mirabilis, sp. nov. 



Niger, ore, antennarum basi, pronoti margine antico maculaque postica, elytrorum- 

 que fascia subapicali testaceis. Pronotum fortiter densissime punctatum. Elytra 

 convexiuscula, fortiter rugosa, et punctata, baud setosa. Long. 2 mm. 



