6o6 FAUNA HAWAIIENSIS 



dense vestitum, antennis brevibus, articulis 7, 8 et 9 vel in mare minus elongatis. 

 Pronotum minus transversum, medium subtilissime punctatum, liaudquaquam granu- 

 latum, circa marginem posteriorem etiam densissime punctulatum. Striae elytrorum 

 parum sinuatae, apicibus indistinctis plerumque aut obsoletis. Long. 3-5 mm. 



A black species with conspicuously yellow-marked elytra, resembling X. ashiucadi 

 in appearance. The smooth and uniform covering of tomentum, together with the 

 colour, the very short antennae, and smooth, finely punctate jDronotum readily distinguish 

 it from any others. A short series examined. 



Hab. Oahu, in both ranges, but chiefly from the Koolau or Honolulu range. 



{^2,'^) Xyletobius fraternits, sp. nov. 



Niger, antennis flavescentibus, articulis primo et ultimo fuscis aut nigris, nonnun- 

 quam compluribus aliis etiam infuscatis, pedibus plerumque ex magna parte nigricantibus 

 aut piceis, elytris plaga vel macula magna basali utrinque flavida aut rufa ornatis. 

 Corpus totum tomento pallido quasi lanoso vestitum, haudquaquam laevigatim disposlto. 

 Antennae breves, articulis 7, 8 et 9 haud fortiter elongatis. Pronotum supra laeve, 

 subtilissime punctulatum, haud granulatum, minus transversum. Long. 375 mm. 



Very similar to X. siiuoni, but with the minute hairs, forming the tomentum, very 

 irregular in disposition, giving the clothing a woolly appearance. The tomentum is 

 white, but on the basal red or yellow marks of the elytra it becomes yellowish and 

 again tends to form two yellowish spots near the apex. The yellow subapical spots or 

 markings so conspicuous in A', simoni are altogether absent or very indistinct. 



Xyletobius fratertnis var. laetior nov. 



A single example in my collection from the Honolulu range of mountains is clearly 

 a local race of the above and may conveniently be given a name. It combines with the 

 woolly vestiture of X. fraterntis the more extensive yellow markings of A', simoni, the 

 flavescent tomentum of the anterior pale markings being connected along the suture 

 with the large posterior yellow patches, so that only a small area remains which is 

 covered with white tomentum. Antennae clear yellow, the basal and apical joints dark 

 and the subapical ones subinfuscate. Tibiae yellow or red, much lighter than in the 

 type. 



Hab. Oahu, Waianae mountains (typical) ; the variety, Honolulu range. 1 



(39) Xyletobius roridus, sp. nov. 



Niger, elytris post basim transverse rufofasciatis, fascia ad latera dilatata, apices 

 versus rufo-bimaculatis, his maculis, fasciaque et pronoto tomento haud laevi, cinereo 

 conspicue vestitis, caeteris partibus elytrorum parum evidenter tomentosis. Antennae 



