564 FAUNA HAWAIIENSIS 



LioPHAENA, Sharp. 



Liophaena Sharp, Tr. ent. Soc. London, 1880, p. 48. 



Though closely allied to Oligota by means of the subgenus Oligota proper Liophaena 

 is very distinct by its slender long legs and the great elongation of the basal joint 

 of the feet ; this segment is considerably longer than the following three together. 



(i) Liophaena gracilipcs, Sharp. 



% Liophaena gracilipes Sharp, Tr. ent. Soc. London, 1880, p. 47. 



J L.fiaviceps Sharp, 1. c. and Tr. Dublin Soc. pi. iv. f. 9. 



I have now no doubt that these two supposed species are the sexes of one only. 

 Mr Perkins has met with them two or three times and always apparently in company, 

 or at any rate in the same district. The sex with the orange-yellow head and thorax 

 is no doubt male. 



The colour ot the head and thorax in the male forms a striking contrast to the 

 elytra, which are intense black and highly polished, but which possess a scanty peculiar 

 sculpture of oblique scratches (PI. XVI. fig. 25). In the female the surface is not so 

 highly polished and shining. When the thorax of the male is pushed back on the 

 elytra, the black colour of these and of the scutellum make the base of the thorax 

 appear black. 



Hab. Hawaii. Mts. Hualalai about 5000 ft. 5. viii. 1892; Hualalai, ix. 1900; 

 Kona, 5000 ft. 4. VII. 1892 and 4000 ft. 25. vii. 1892, also 3000 ft. ix. 1892 ; Kilauea, 

 VII. 1895 and VIII. 1895, ^'so ix. 1896 (Perkins). Mauna Loa near the crater, about 

 4000 ft. (Blackburn). 



(2) Liophaena centralis, sp. no v. 



^ Nigerrima, capite, antennis, palpis pedibusque pallide flavis ; % capita nigro. 

 Long, fere 2 mm. 



This is extremely close to L. gracilipes but in the male the thorax is entirely black 

 like the elytra. The size is a little less, and there is rather less sculpture on the elytra. 



There are three examples of L. centralis from Lanai and three from Molokai. 

 A single female from Haleakala may perhaps also be L. centralis, but it is a very large 

 specimen. 



Hab. Lanai, Molokai, Maui. — Lanai, 2000 ft. xii. 1893 and i. 1894. — Molokai, 

 2. VI. 1893. — Maui, Haleakala, 5000 ft. iii. 1894. (Perkins.) 



