COLEOPTERA 



113 



Both sexes of this species may be readily distinguished from P. aequalis by the 

 longer, slender basal part of the femora : as this part is pallid yellow in colour, the 

 discrimination of the two species is easy, though apparently the two are closely allied. 



(29) Plagithniysiis cristatits Sharp. 



Clytarlus cristatus Sharp, Tr. ent. Soc. London, 187S, p. 207. 



Plagithmysus cristatus Sharp, Ent. Mo. Mag. 1896, p. 274. 



(Plate VI. fig. 21 ; t-) 



Hab. Oahu ; Honolulu, Blackburn ; on Acacia koa, Perkins. 



In this species the hind femora are peculiar in shape, being much like what they 

 are in Callithinystis. The legs are much more slender in the female than they are in 

 the male. The specimen supposed to be Clytus atteniiatus Boisd. in the collection of 

 the British Museum is, as Mr Gahan surmised, a female of this species. Boisduval's 

 name has however no sufficient claim to validity, as will be seen from his description, 

 repeated here on p. 115. 



Callithwvsus Sharp. 

 Callithmysiis Sharp, Ent. Mo. Mag. x.xxii. 1896, p. 238. 



(i) Callithmysits nticrogaster Sharp. 



Clytarlus viicrogaster Sharp, Tr. ent. Soc. 1879, p. 103; Tr. Dublin Soc. (2), 



III. 1885, PI. V. fig. 46. 

 Hab. Oahu ; near Honolulu, 2000 ft., in June, very rare ; Blackburn. 



Callitkmysjis microgaster var. ? Jiirtipes, var. nov. Tibiis posterioribus minus 

 elongatis, usque basin densissime pubescentibus. 



Hab. Oahu : one individual on the ridge leading from the head of Pauoa Y^allev 

 to the peak called Konahuanui, Oct. 31st, 1892. On Bobea sp. 



Subfam. LAMIINI. 



Group ACANTHOCINIDES. 



Lagocheirus Thorns. 



(i) Lagoclieints obsolctiis Thoms. 



Lagocheirus obsoletus Thoms, Class. Longic. i860, p. 10. 



Lagocheirus araneiformis var., Sharp, Tr. ent. Soc. London, 1878, p. 210. 



Hab. Oahu. Apparently confined, so far as this archipelago is concerned, to the 



