COLEOPTERA 547 



The three examples from Kauai agree well, and one, of two specimens, from 

 Haleakala differs very little from them. Four examples from Molokai are rather more 

 slender and are darker in colour, so that the elytra are more pallid than the head, thorax 

 and base of the abdomen. The second example from Haleakala agrees with the 

 Molokai individuals and I think all are one species. 



Hab. Kauai, IMolokai, Maui. — Kauai, high plateau, viii. 1896. — Molokai mts. 

 4500 ft. 21. IX. 1S93. — Maui, Haleakala 5000 ft. i. vi. 1894 and iii. 1894. — (Perkins). 



(2) N't'soiiicdoii oa/niciisis, sp. n. 



Gracilior, piceus, palpis pedibusque testaceis, abdomine ruto-obscuro, segmento 

 penultimo nigricante: capite thoraceque densius fortius punctatis; elytris angustis, 

 scabroso-punctatis. Long, vix 4 mm. 



We have only one specimen of this insect, but I venture to describe it, as it is 

 clearly distinct and comes trom a different island. It is smaller and much narrower 

 than A^. brnnnesccns, somewhat differently coloured, and has a more coarsely punctured 

 thorax. It is a male, and the notch on the last ventral plate is rather more definite than 

 it is in N. bruiinesccns. 



Hab. Oahu (Perkins). 



(3) A^csoinedon quadrattis, sp. n. 



Nigricans, palpis pedibusque testaceo-obscuris, femoribus fuscescentibus; capite 

 thoraceque dense fortiter punctatis ; elytris parallelis, thorace paulo longioribus. Long, 

 vix 4 mm. 



N. quadratus is at once distinguished from the other species by the elytra not being 

 narrowed at the shoulders (PI. XVI. fig. 24). The metasternum is longer and the eyes 

 better developed. It may prove to possess wings. We have one pair only; the male 

 has a small definite notch on the last ventral plate, like N'. oaluiensis. 



Hab. Hawaii, Olaa, xi. 1896 (Perkins). 



Tribe STAPH YLJNL 

 Philonthus, Curtis. 

 Philonthiis Curtis, Brit. Ent. xiii. 1825, 610. 



(i) Philoiitluts scyhalarius, Nordm. 



Philonthus scybalarius Nordm., Sjmliol. p. 94. 



So far as has been noticed none of the other varieties of this species occur in Hawaii. 



Hab. Kauai, Oahu, INIaui, Molokai, Lanai (Blackburn and Perkins). Cosmo- 

 politan. 



