COLEOPTERA 617 



(2) Mirostenuis tcsfaceus, sp. nov. 



Praecedentis forma et colore, elytris parum pubescentibus, circum suturam rugu- 

 losis vel ruouloso-punctatis, caeteris partibus parcissime punctatis distinguendus. 

 Long. 3-5 mm. 



Distinguished irom the preceding by the sculpture of the almost glabrous elytra. 

 This sculpture varies in intensity. The basal club joint sometimes appears subquadrate 

 rather than triangular but this is not constant, the antennae of the same example not 

 always appearing alike in this respect. 



Hab. Kauai, 3000 — 4000 ft. 



(3) Mirostermis punctatissiiiais, sp. nov. 



Praecedentibus forma et colore simillimus, elytris usque ad margines et partibus 

 apicalibus dense aequaliter punctatis, pubescentia densiore vestitis distinguendus. 

 Long. 3*25 mm. 



Antennae varying as in the preceding, the basal joint of the club usually triangular, 

 but sometimes appearing subquadrate. Sculpture not varying much, very dense and 

 even on the apical portion of the elytra, sparsely or little punctured only near the 

 shoulders. Pronotum more distinctly punctured than in the preceding. Colour vari- 

 able, in one example the head and thorax are black, as well as the sides of the elytra 

 broadly, the rest of their surface being dark brown, instead of the usual ferruginous 

 colour. 



Hab. Oahu, Maui. — Oahu, widely distributed, in both ranges; Maui, Haleakala. 



(4) ]\Iirosternus excelsior, sp. nov. 



Praecedentibus forma et colore simillimus, sed oculis minoribus, singulis spatio 

 frontis intermedio latioribus. Elytra juxta suturam utrinque angustissime dense sub- 

 tiliter punctata, caeteris partibus fere glabris, parce sed grossius punctatis. Long. 

 3-5 mm. 



Head and thorax no doubt densely pubescent in fresh examples, and with a narrow 

 line of pubescence on each side of the elytral suture, where the puncturation is dense. 

 Elsewhere the elytra are smooth and shining with remote largish punctures, which tend 

 to form rows. The antennae are entirely reddish, but the colour of these varies in 

 the preceding species also. The sex of the specimen described is uncertain, since 

 in the allied forms both sexes have the metasternum strongly carinated, and in this 

 insect the carina is both long and strong. If it be a female the male would probably 

 have the space between the eyes less wide. In any case this species is quite distinct. 



Hab. Lanai, in January 1894, 



