2.58 On new Genera and Species of Longicorn Coleoptera. 



on each side antoiiorly, wliicli is covered over by tlie frinc!;e 

 of fulvous liairs attaclied to tlie liiud mari^in of the first 

 secjment. Tlie anterior tibire of the male are stroii^^Iy bent 

 inwards from about the middle of their lenj2;th, and eacii bears 

 a spine on the inner side between the middle and apex ; the 

 tibia? of the middle pair are strongly bent inwards towards 

 their a])ex, and each has a strong sliarp spine placed on the 

 inner side of this somewhat thickened apical ])ortion. The 

 trochanters of the middle pair are also produced into a small 

 spine at their extremities. 



This species has a great resemblance to Niphona ci/lin- 

 dracea, White ; but the latter is more strongly toothed on 

 the side of the prothorax, its middle tibia3 in the male arc not 

 bent in strongly at the apex, and are not spincd, nor are the 

 trochanters of the same pair spinose at tiieir extremities ; the 

 lateral processes of the last ventral segment of the male are 

 also shorter, and in those examples that I have seen are not 

 curved downwards towards the middle line. 



Alidus, gen. nov. (Ni'phonidce). 



Prothorax angulate or feebly tuberculate at the middle of 

 each side. Mesonotum without stridulating surface, but with 

 a smooth polished line along the middle. Prosternal and 

 mesosternal processes with their oppoeed faces subvertical, 

 both processes transversely rugulose and longitudinally cana- 

 liculate ; the horizontal face of the prosternal process some- 

 what dilated posteriorly to fit into corresponding dejjressions 

 on the sides of the coxfe. Eyes rather small, subdivided. 

 Antennas of the male nearly one half longer than the body ; 

 those of the female about equal in length to the body; first 

 and third joints subequal in length, the fifth longer and 

 slightly curved, each of the succeeding joints, the eleventh 

 excepted, subequal to or slightly shorter than tlie third. 



'I'his genus may be recognized by the rather exceptional 

 character, for this group, which it possesses in having the 

 sides of the prothorax tuberculate in the middle. 



Ah'dus hiplagiotuSj sp. n. 

 Dilute fuscus, maculis punctisque flavo-albidis sparsim aspersis, 



prothoracis dorse plaga ovali lusco-velutina utriuque ornato. 

 Long. 23-25, lat. 9-11 millim. 



I lab. China {J. C. Boicring) and Assam {Atkinson). 



Dark brown, with darker brown points and numerous 

 minute scattered yellowish-white points and spots, the most 

 conspicuous of which are a spot on the base of the fourth 

 antennal joint, a small patch on the middle of each tibia, and 

 a iQ.v> spots forming a narrow zigzag band between the middle 

 and jjostcrior thirds of each elytron. Prothorax with a large 



