170 Mr. G. C CIiani[)Ion on CoUoptera from 



eyes and the tips of tlie mandibles black, the prothorax 

 with a narrow median vitta and an oblong spot on each side 

 (the vitta sometimes interrupted and the spot wanting), and 

 the head in some s{)ecimens Avitli a spot between the eyes, 

 ftiscous, the elytra fuscous, with the sutnre, three narrow 

 lines on the disc (the outer one fainter and abbreviated 

 anteriorly), and the lateral margin more broadly, pale testa- 

 ceous, the ventral surface and metasternum in part infuscate. 

 liead moderately produced anteriorly, very finely punctate ; 

 eyes large, separated by more than tlie width of one of them 

 as seen from above ; mandibles nncleft at the tip ; antennae 

 long, joint 3 longer than 4, 4-10 decreasing in length, 11 

 longer than 10 and feebly constricted at the middle. Pro- 

 thorax longer than broad, moderately constricted behind the 

 middle, transversely depressed anteriorly and also hollowed 

 in the centre before the base ; the surface polished, very 

 finely punctate, with an indication of a smooth median line. 

 Elytra much wider than the prothorax, somewhat attenuate 

 posteriorly, closely, very finely punctate, Avithout definite 

 costse. 



^ . Fifth ventral segment excavate down the middle before 

 the apex. 



Length 7-10^ ram. ( c? ? •) 



Lac. Aldabra (1908, Fryer). Madagascar (Mus. Brit.). 



Four specimens, one only of which (a ? ) is from Aldabra, 

 apparently referable to A. lineolaj Fairm., the type of which 

 was from Madagascar, 



Ananca. 



Sessi7i{a, Pascoe, Journ. Ent. ii. pp. 45, 488 (1863) (nomen nudum). 

 Ananca, Fairniaire et Germain, Ann. Soc. Ent. Fr. ]8t)."3, p. 267. 

 (.'«^?/(;/(V«, Leconte, New Species Coleopt. p. 104 (180(3); Champion, 



iJiol. (Jentr.-Am., Coleopt. iv. 2, p. 144, and Trans. Ent. Soc. Lond. 



1890, p. 40. 



This genus differs from Oxacis in having both mandibles 

 cleft at the tip. No type was given by Pascoe for Sessinia 

 and his name cannot be accepted. The five species referred 

 to Ananca by Fairmaire and Germain were all from Chile ; 

 the first of these, Nacerdes pallens, Sol., which must be taken 

 as the type, proves to have bifid mandibles, and the name 

 Ananca, therefore, must be adopted in place of Co/iidita, 

 Ubcd l)y me elsewhere. 



8. Ananca aldubrana, sp. n. 

 Elongate, liiteo- or fulvo-testaceous, the eyes and the tips 



