COLEOPTERA 60 1 



fact of the usual size, whereas the large eyes of the male form the chief distinguishing 

 character of the species. There is evidently a slight variation in the length of the 

 antennae and in some males the eyes are rather larger than in others. 



Obs. I do not feel certain that I have correctly determined the sexes of this 

 species. Of supposed females there appear to be only two examples, and one of these 

 is doubtful. It is possible that these really belong to some other species and that 

 some of the specimens that I have considered males are really of the female sex. It 

 is certainly unusual to find only one or two females in a series of about two dozen of a 

 Xyletobius. Some examples from Kilauea are very small and ill-developed, others are 

 not different from Maui specimens. 



H.'\B. Maui, Hawaii. — Maui, Haleakala : Hawaii, Kilauea. 



(26) Xyletobius luegalops, sp. nov. 



Rufescens, capite nigro, elytris et pronoto nonnunquam plus minusve partim infus- 

 catus, antennis nigricantibus, articulis 3 aut 4 basalibus rufis aut flavidis, haud robustus, 

 sat fortiter elongatus, pallide tomentosus. Antennae fortiter elongatae, maris articulo 

 quinto sat fortiter elongato, sexto fere bis longiore quam latiore, septimo quam praece- 

 dente longiore, caeteris gracilibus, fortiter elongatis. Oculi maris permagni, capite a 

 fronte viso singuli spatio, quod interest, haud minus lati. Oculi feminae late separati, 

 una conjuncti spatio, quod interest, vix latitudine aequales. Pronotum latum, lateribus 

 densius pallide tomentosis. Elytra fortiter elongata, lineis tomenti pallidi variegata, 

 striis minus conspicue sinuatis. Long. 3' 5 mm. 



Allied to X. kirkaldyi, but readily distinguished by the still much larger eyes of 

 the male. Whether Blackburn's A', insignis is allied more closely to this species or 

 the one just mentioned I do not know. Its antennae are different in colour from those 

 of any specimen I have seen of either, and the eyes I should judge from the descrip- 

 tion to be very likely intermediate in size, perhaps more like the following {X. euops). 

 The female of X. megalops is very like the male in the antennal structure, but its eyes 

 are much more widely separated and smaller, though a good deal larger than is usual in 

 the genus. 



Hab. Lanai, 2000 ft., near Koele. 



(27) Xyletobius euops, sp. nov. 



X. niegalopi z.^m%, sed minor et oculis minoribus distinguendus. Long. 2'5 mm. 



I have seen only two examples of this species and cannot decide whether they 

 represent the sexes or not. They are alike in all respects except that the eyes of the 

 one are decidedly larger than those of the other. In the type the eyes (in a front 

 view of the face) are together wider than the space (where narrowest) between them, 



