41 8 FAUNA HAWAIIENSIS 



which is not dead black, but a kind of pitchy, with a certain amount of yellowish, so 

 to speak, showing through. A few specimens are decidedly lighter ; one, probably 

 immature, is yellow. The legs are yellowish, the antennae the same with the club 

 infuscate. Length about f mm. There is slight variation in size ; the specimen originally 

 described is rather small. Thirty-nine specimens. 



Hab. Hawaii, Maui. — Hawaii : Mauna Loa, about 4000 ft. (Blackburn) ; Kona, 

 4000 ft. and over, some recorded from dead wood and from fungi on Koa tree (Perkins). — 

 Maui : Haleakala 5000 ft., four specimens (Perkins). 



Fam. MYCETOPHAGIDAE ( = TRITOMIDAE)'. 

 LiTARGUS Erichson. 

 Litargus Erichson, Nat. Ins. iii. 1846, p. 415. 



Subgenus Alitargus Casey. 



Alitargus Casey, J. N. York Ent. Soc. viii. 1900, p. 136. 



Pubescence confusedly arranged, without widely separated series of longer semi- 

 erect hairs. Epipleurae strongly concave, deeply descending. Epistoma trapezoidal. 

 Pronotal punctures simple. Last antennal joint elongate, the tip obliquely and recti- 

 lineally truncate. 



(i) Litargus balteahis Leconte. 



Litargus balteatns Leconte, P. Ac. Philad. i<S56, p. 14. 



Alitarg2is balteatus Casey, 1. c. 



We have received several specimens which agree closely with Casey's description 

 (1. c), and also with specimens in the British Museum determined by Dr Sharp as 

 L. balteatus (Biol. Centr.-Am. 11. i, p. 639). The Hawaiian specimens exceed in size 

 the typical L. balteattis as described by Casey, and in this and other respects seem to 

 come close to the van transvcrsjis Lee, even if they are not identical therewith. 



The form is rather parallel-sided, not tapering much posteriorly. Convexity 

 moderate. Sinuations in the base of the prothorax small but evident ; in front of each 

 of them is a very vague depression on the posterior part of the disc. Pubescence 

 yellowish, conspicuous. In the larger specimens (of the transversics form) the colour 

 is piceous or black, with pallid testaceous markings, which vary somewhat in arrange- 

 ment, on the elytra ; usually there is a conspicuous humeral and post-scutellar light 

 area, and a transverse post-median band. There is a small patch of paler pubescence 

 on the sloping sides of the elytra anteriorly, a little behind the humeral light area. 

 Clubs of the antennae dark. 



Some specimens are rather smaller and lighter, being rufo-piceous with the pallid 

 markings variable. One of these is more tapering posteriorly than the rest. I can 



' By Hugh Scott. 



