Coleoptcra from the Hawaiian Islands. 97 



and has the thorax much less constricted in front. In its 

 form it more resembles P. simplex, but may be easily 

 distinguished by the impressions of the thorax, and by 

 the humeral angles of the elytra being more produced in 

 front. 



The pair of this species sent by INIr. Blackburn were 

 numbered 1G9 and 170, and were found on Haleakala, 

 Maui. 



Proterliinus piisil/us, n. sp. INIlnor ; oculis parvis ; 

 fusco-rufus, setis albidis, depressis, et erectis vestitus, 

 pedibus rufis; prothorace latiusculo, anterius abrupte con- 

 stricto, basin versus angustato, pone marginem anteriorem 

 parum distincte impresso, obsolete punctato; elytris indis- 

 tincte punctatis, humeris haud acutis. Long. 1^ — 1^^ mm. 



This is the smallest Proterhinus yet found ; it is most 

 allied to P. vestitus, but independently of its much 

 smaller size, it may be distinguished by its smaller eyes, 

 less distinctly impressed thorax, more obscure punctuation, 

 and the less development of the seta^ ; the scales and setae 

 with which it is clothed are in the two individuals before 

 me nearly white in colour ; the shoulders are a good deal 

 more indistinct and more rounded than they are in 

 /-*. vestitus. The structure of the antennas is much the 

 same as in P. vestitus, and this easily distinguishes the 

 species from the almost equally small P. debilis. 



A pair of this species, displaying the usual sexual dis- 

 tinction, has been sent by Mr. Blackburn as Nos. 181 

 and 182 ; they were found in the forests on the Honolulu 

 range of mountains. 



Proterliinus longulus, n. sp. Elongatus, angustulus, 

 opacus, ferrugineus, elytris vage nigro-signatis, setis de- 

 pressis sparsim vestitus, setis erectis sat conspicuis ; pro- 

 thorace elongato, parum intequali, indistincte punctato, 

 linea longitudinali subhevi sat distincta ; elytris elongatis 

 sparsim sat fortiter punctatis, humeris acutis, prominulis. 

 Long. 3 — 3| mm.; lat. 1 — 1^ mm. 



This is a very distinct species, Avith scanty clothing, 

 which has little tendency to form spots or bands. The 

 eyes are small, the antenna moderately long, rather 

 slender. The thighs are rather more slender, or less cla- 

 vate, than in most of the other species, and the central 



TRANS. EXT. SOC. 1879. — PART I. (aRR.) H 



