530 FAUNA HAWAIIENSIS 



Acritus longipes var. haleakalae, var. nov. 



Fusco-ferrugineus, prothorace subtiliter ac obsolete punctato, ad mediam basin 

 impresso ac ruguloso ; elytris obsolete aciculatim punctatis. 



There are two rather large specimens, having the obsolete punctuation and basal 

 thoracic sculpture more marked, so that they present a decidedly wrinkled appearance. 

 In this respect they approach slightly to another species found in the same habitat, 

 A. monticola, but are at once distinguished by the much broader prosternum, lighter 

 colour, slender legs, and basal thoracic impression. The surface of the mesosternal 

 impression bears an obsolete punctuation or rugulosity. The wings are reduced, being 

 considerably shorter than the elytra. 



Hab. Maui, Haleakala, 5000 ft. (Perkins). 



(26) Acritns laevis, sp. nov. 



Ferrugineus, laevis, impunctatus ; pedibus longis et tenuibus ; prothorace ante 

 basin baud impresso ; prosterno ei A. longipedis sat simili ; mesosterno baud fortiter 

 impresso. Long, i-^ mm. 



A single specimen is like A. longipes in general torm and in having long slender 

 legs, but is quite smooth and impunctate, without any basal thoracic impression or mark. 

 The prosternum is slightly broader than in A. longipes, but whether the difference is 

 sufficient to prove a specific character is uncertain. I have been unable to examine the 

 wings. 



Hab. Kauai, Halemanu, 4000 ft. v. 1895 (no. 504, Perkins). 



(27) Acritns sttbalatns, sp. nov. 



PIceus, laevis, impunctatus, nitidus; pedibus sat tenuibus; prothorace ante basin 

 baud impresso; alls abbreviatis, elytris curtioribus ; prosterno parum convexo, striis 

 antice divergentibus ; mesosterno impresso. Long, i mm. 



Plate XV. fig. 25. 



This dark, smooth and quite impunctate species, with rather long slender legs, is 

 the only one in which it has been possible satisfactorily to examine the reduced wings. 

 The wing is about f as long as the elytron ; the proportionate lengths of wing and 

 elytron are shown in PI. XV. fig. 26, and can be compared with those between wing and 

 elytron oi A. kanaiensis, shown in Plate XV. figs. 6 and 6 a. 



The keel of the prosternum is not quite twice as long as its breadth at the base ; 

 the base is broad, and the striae scarcely diverge in the basal part, but do so anteriorly. 

 Two specimens. 



There are two specimens from Molokai, which are larger than those from Lanai 

 (being ij. mm. long), and with the prosternal keel proportionately broader. The wings 



