200 FAUNA HAWAII ENSIS 



(31) Proterhinus leiorhynchus, sp. nov. 



Niger, vel piceus, antennis elytrisque rufescentibus, his nigro-maculatis, squamis 

 pallidis vestitus. Antennae fortiter elongatae, conspicue pubescentes, articulo primo 

 perlongo et incrassato, secundo sat elongate sed tertio breviore, 9° quam 10"' vix minus 

 lato. Pronotum distincte 3-impressum, lateribus aequaliter rotundatis. Elytra pallide 

 squamosa, setisque erectis elongatisque sat conspicue vestita, juxta scutellum utrinque 

 tuberculata, humeris acutis. %. Long. 3 — 375 mm. 



This is a very distinct and somewhat large species, having the antennae unusually 

 long. The basal joint is greatly incrassate and very long, the second is also elongate, 

 although shorter than the third, the three apical joints form a very distinct club, the 

 ninth at the apex being hardly less wide than the tenth, but very much more so than 

 the long and slender joint preceding it. The rostrum is smooth and shining, the 

 longitudinal impressed lines very fine. There is no transverse ridge between the 

 vertex and front of the head. The eyes are prominent but not very large for the size 

 of the insect. Thorax with the sides evenly rounded, densely punctured, and having 

 three more or less distinct impressions. Elytra with pale squamosity, except over the 

 black markings, and bearing elongate pale erect setae, which are quite conspicuous. 

 The basal tubercles on either side of the scutellum are distinct, the humeral angles 

 sharp and somewhat produced. Lobes of the tarsi somewhat small. 



Hab. Oahu, Waianae mountains (3000 ft.). Four females taken in February 1896. 

 One of these has the second joint of the antennae abnormally short. There is also 

 slight variation in the width of the thorax, and the elytra vary greatly in length. 



(32) Proterhinus ruficornis, sp. nov. 



Totus rufescens, aut capite, pronoto, femoribusque obscuratis, elytris nigro- 

 maculatis. Antennae rufae, sat elongatae, clava distinctissime 3-articulata, articulo 9°, 

 quam 8'", multo latiore, et aeque lato ac art. 10. Oculi magni fortiter prominentes. 

 Pronotum antice abrupte constrictum, et impressum, impressionibus posterioribus ob- 

 soletis. Elytra griseo-squamosa, humeris subproductis. Species haec P. laorhynclio 

 cognatissima, antennarum articulis 2 basalibus minus elongatis, oculis et tarsorum lobis 

 paullo majoribus, pronoti impressionibus posterioribus obsoletis, distinguenda. ^%. 

 Long. 3—3-5 mm. 



Extremely closely allied to P. leiorhynchtis, from which it may be distinguished by 

 the characters given above. Also very close to P. separandus, of Maui and Molokai, 

 but that species has the antennae less elongate, and differs slightly in other respects. 



Hab. Oahu. A single pair were taken in cop. at an elevation of nearly 3000 ft., 

 in the mountains near Honolulu. 



