2o8 FAUNA HAWAIIENSIS 



(47) Proterhinus longulus Sharp. 



Proterhimis longulus Sharp, Tr. Ent. Soc. London, 1S79, p. 97. 



I have examined only the types, one t and one %, of this species, which are in 

 Dr Sharp's collection. It is very closely allied to P. epitretus of Lanai, and P. ferru- 

 gineus of Hawaii, under which species I have pointed out the characters whereby these 

 allied forms may be distinguished. 



Hab. Oahu mountains, in stems of fern (Blackburn). 



(48) Proterhinus paradoxus Sharp. 



Proterhimis paradoxus Sharp, Tr. Ent. Soc. London, 1879, p. 100. Tr. Dublin 



Soc. III. 1885, PI. V. fig. 36. 

 I have never met with this species, which is evidently allied to the following 

 (T-". oahuensis). 



Hab. Mountains near Honolulu (Blackburn). 



(49) Proterhinus oahuensis, sp. nov. 



Haud latus, nitidus, ferrugineus, setis erectis flavescentibus vestitus, hand squa- 

 mosus. Antennae graciliores, articulis 2 basalibus sat robustis. Oculi parvi, a pronoto 

 longe remoti. Pronotum subnitidum, antice fortiter impressum, impressionibus posteri- 

 oribus minus distinctis. Elytra nitida, sat elongata, grosse subseriatim punctata, suturam 

 versus utrinque oblique longitudinaliter carinata, carina quoque longitudinali ab angulis 

 humeralibus extensa, setis erectis flavescentibus elongatis, aliisque brevioribus, conspicue 

 vestita. Femora omnia gracilia, tibiis anticis gracillimis et elongatis, lobis tarsorum 

 minutissimis. ^. Long. 2 '5 mm. (Plate X. fig. 4.) 



This species is very distinct, and obviously allied to P. paradoxus, but has 

 the elytra of different form, these not being rectangularly deflexed laterally, nor con- 

 spicuously flattened above. The shoulders are nearly rectangular, and from each a 

 distinct carina extends backwards, and internal to these towards the suture other two of 

 the interstices are distinctly raised and form obliquely longitudinal carinae. The basal 

 abdominal segment beneath is very coarsely punctured and the segmental sutures are 

 extremely deep. 



Hab. Oahu, mountains near Honolulu; i t taken in May, 1896. 



