COLEOPTERA 437 



In the male there is no impression on the last ventral, and the hind margin of this 

 plate is feebly bisinuate. Seventeen sp'ecimens. 



Hab. Molokai, mountains between 4000 — 4500 ft. (nos. iSo, 182, Perkins). 



(2) GoniotJwrax cimea/ns, sp. no v. 



Praecedenti persimilis ; prothorace paulo longiore notisque sexualibus differt. 

 ? Long. corp. 7 — 7^ mm. lat. 2% — 2|-, long, prothor. i|-, lat. prothoracis i|, long, 

 elytr. 3 mm. 



In the female the pygidium (Plate XIII. fig. 18 a) is bent down at the tip, and is 

 there transversely flat, just before this flat part it is conve.x in the middle so as to appear 

 tuberculate ; there is a tuft of hairs at each outer angle behind ; the last ventral plate 

 extends just beyond the pygidium and has on the hind margin two distinct tufts of hair 

 each placed on a small tubercle. 



The male has the pygidium slightly broader at the apex than it is in G. conicicollis, 

 the last ventral plate is feebly depressed on the middle, and its hind margin is bisinuate, 

 the middle of it being just perceptibly more prominent than the outer angle, but not in 

 the least angulate. Ten specimens of this remarkable insect have been found. 



Hab. Maui, Haleakala, 4500 — 5000 ft. (nos. 127, 679, Perkins). 



(3) Goniothorax elongatus, sp. nov. 



2 G. cuneati peraffinis, statura magis elongata, pedibusque crassioribus, distinctus. 

 Long. corp. 7^ mm., lat. 2f, long, prothoracis 2 mm., lat. proth. i|-, long, elytr. 3|-. 



I think this will prove distinct from G. cuneatus, though as the male sex characters 

 seem to be almost the same it may be only an extreme form. One specimen. 



Hab. Maui, Haleakala, over 4000 ft. (no. 680, Perkins). 



(4) Goniothorax p/cheius, sp. nov. 



$ Nigricans, antennis pedibusque fuscis, abdomine fusco-rufo, thoracis elytrorumque 

 marginibus plus minus rufescentibus ; thorace transverso, lateribus leniter rotundatis, 

 dense punctato. Long. corp. 6^ mm., lat. 2f, long, prothoracis ij, lat. proth. 2, long, 

 elytr. fere 3 mm. 



Closely allied to G. conicicollis, but of shorter form and with a distinctly transverse 

 thorax. We have only two individuals ; they are males, and the abdominal characters 

 are very much the same as they are in G. conicicollis. 



Hab. Molokai (nos. 175, 345, Perkins). 



