COLEOPTERA 605 



{Dostice attenuata (siv-e forma subtriangulari), a basi post media elytra extensa, colore 

 variabili, sive atro-brunneo sive brunneo-aureo, ornata. Long. 4-5 mm. 



This pretty species is closely allied to X.speiscri, from which it can be distinguished 

 at a glance by the fact that the remarkable pattern on the elytra is not continued on to the 

 pronotum. In addition to the great brown or golden area, which extends from the base 

 of the elytra, there is generally more or less trace of a subapical band or spot and some- 

 times the surface is noticeably red in that position. In one specimen the whole elytra 

 appear clothed with uniform whitish tomentum, the pattern having entirely disappeared. 

 This is no doubt due to long exposure, and such specimens would be entirely robbed of 

 their most characteristic appearance. 



Hab. Hawaii, Kilauea. I took several examples in 1906, but had never met 



with it previously. It occurs close to the Volcano house hotel and is attached to 



Cheirodendron, in the bark of which I found it ovipositing. The type is with those of 

 the other species collected by me. 



(36) Xyletobius shaTpi, sp. nov. 



Niger, antennarum nonnullis subbasalibus articulis saepius flavescentibus aut rufis, 

 rare omnibus nigrls. Corpus minus dense subtilissime albido-tomentosum, pronoto 

 postice macula utrinque rotundata tomenti conspicue flavescentis ornato, elytris ante 

 media fascia ejusdem coloris tomentosa conspicue signatis. Antennae $ breves, maris 

 minus fortiter elongatae, articulo 6 et 7 hujus baud fortiter, illius haudquaquam elon- 

 gatis. Elytra hinc illic leviter sed distincte impressa, distincte striata, stria secunda 

 cum tertia sola ad apices confluente (rare ambarum apicibus liberis). Long. 4 mm. 



It is impossible to confuse this remarkable species with any other described form. 

 It belongs to the group of X. fratei-mis and siinoni. The type specimen alone of the 

 four or five examined appears to be a male and it differs a good deal in the pronotum 

 from the others, this part in dorsal aspect having an appearance of strong lateral 

 emargination. In the females this false emargination is slight or appears only as a light 

 inward sinuation of the lateral outline. I suspect the $ is abnormal in this respect. It 

 was taken in company with one of the females. 



Hab. Oahu, about 1500 ft. in the Koolau range, and also in the Waianae 

 mountains. 



{j"/) Xyletobius sinioni, sp. nov. 



Niger, antennis colore variabilibus, nigris, fuscis, flavescentibus, aut articulis non- 

 nullis basalibus rufescentibus, caeteris nigris. Elytra fere aequaliter cinereo- aut 

 flavido-tomentosa, plaga circum scutellum magna picea aut nigra, post banc fascia 

 flavescente, lateribus dilatatis et ad humeros extensis, ornata, post fasciam nigra aut 

 nigrescentia, maculis duabus flavescentibus plerumque magnis signata. Caput parum 

 F. H. III. ■]% 



