384 FAUNA HAWAIIENSIS 



iyl) Itodacniis chloroticus, sp. nov. 



Angustus, stramineo-testaceus. hand nitidus, prothorace subtiliter punctate. Long. 

 (>\ — 8 mm. 



Distinguished from all the other species by its extremely pallid colour and the 

 reduced sculpture and pubescence. We have only three examples, two of which are 

 females, while the third specimen, the smallest of the three, is, I believe, a male. 



The thorax is remarkably straight at the sides, being very little rounded and 

 narrowed in front ; its hind angles are very fine and sharp ; its surface has a peculiar 

 silky dulness, on which the fine punctuation shows but little. The elytra are rather 

 deeply striate, and the punctuation on the interstices is rather fine. The pubescence is 

 everywhere very minute and inconspicuous. 



Hab. Oahu (Perkins and Koebele) ; N.W, Koolau range, vii. [901 (Perkins). 



(8) Itodacmis collaris, sp. nov. 



Angustus, haud depressus, prothorace subtiliter punctato, elongato, lateribus sub- 

 parallelis ; elytris profunde striatis. Long. 9 mm. 



We have only two specimens of this species, which are very discrepant in colour, 

 so that I have not alluded to this in the diagnosis ; one is entirely rufescent, with pallid 

 antennae and legs, and the other has the head and the greater part of the thorax and 

 under surface blackish. Both are males, and the colour of the paler specimen is 

 probably due to immaturity. 



Although resembling pretty closely /. blackbiuniiamis, I. collaris is quite distinct, 

 as it has the angle of the inner lamina of the hind coxa much more prominent • the legs 

 of /. collaris are also considerably stouter. In this character and in general appearance 

 it makes some approach to the genus Dacnitits. 



Hab. Molokai, June, 1896 (Perkins). 



Dacnitus, gen. nov. 



Corpus breve, pedibus majusculis. Metasternum abbreviatum. Coxae posteriores 

 lamina externa fere nulla, lamina interna angusta, excisione trochanterali fere nulla. 



This may be briefly described as an Itodacmis, with cursorial legs. The short 

 hind-body and the abbreviated metasternum make it probable that when more material 

 is found for study the insect will prove to be a flightless form. 



Although in some of the species of Itodacmis the inner lamina of the hind coxa, 

 as well as the outer one, is considerably reduced, yet these are not intermediates in 

 this respect between Itodacmis and Dacnitus. For in this genus the lobe though 

 reduced in width, is increased in length. 



