COLEOPTERA 



239 



base. I have assigned to it specimens of mucli more obscure appearance, and with the 

 humeral angles of the elytra less produced, but it is quite possible some of these belong 

 to another distinct species. In any case P. gj'acilis varies greatly in size, colour and 

 length of the elytra. It is allied to the preceding species, P. affinis, as I have remarked 

 under that insect. 



Hab. Hawaii. Various districts and localities (3000 and 4000 ft.); a great 

 number of examples were taken. 



(109) Protcrhinus air/iynchus, sp. nov. 



Nigricans, elongatulus, elytris irregulariter pallide squamosus. Oculi magni, pro- 

 minentes. Antennae subcrassae, rufescentes, clava 3-articulata. Rostrum ^ elongatum, 

 aeque longum ac latum, vel paullo longius, lateribus pubescentia pallida densiore margi- 

 natis. Pronotum minus latum, fortiter 3-impressum, setis appressis aliisque curvatis et 

 suberectis vestitum. Elytra basim versus obscure rufescentia, ibique pallide squamosa, 

 subinaequalia, basi scutellum juxta utrinque distincte tuberculata, angulis humeralibus 

 subproductis et distinctis. $. Long, circiter 3 mm. (Plate X. fig. 9.) 



This species is very like P. affinis in form and general appearance, but is of a 

 darker colour. The antennae are quite stout, the intermediate joints being a good deal 

 widened from the base to apex, being of elongate triangular form. The $ is easily 

 known by the long rostrum, which is even a little longer than its width at the base, and 

 is clothed at the sides with a dense outstanding pale pubescence. I cannot assign any 

 ? to the two males with the above characters. 



Hab. Hawaii, Kilauea ; 2 $ taken in July 1895. 



(iio) Proterhinus tarsalis Blackb. 



Proterhinus tarsalis Blackburn, Tr. Dublin Soc. iii. 1S85, p. 171. 



Only three or four examples of this species were taken by me, the ? having the 

 antennae a good deal more elongate, and thinner, than those obtained by Mr Blackburn. 

 The species is a distinct one in superficial appearance, and is allied to P. vestitus Shp. 

 ind P. angularis Shp., having the basal abdominal segment closely and strongly 

 punctured beneath, as in those species. 



Hab. Hawaii, Mauna Loa, at an elevation of 6000 ft. (Blackburn) ; Kona 

 (3000 ft.); a few examples taken. 



