ON THE INSECTS FROM NEW BRITAIN. 385 



Monohammus fasciatus Montrouzier (Ann. Soc. Agric. Lyon, vii., 18.5-5, p. G3). 



Two specimens, agreeing with others from Woodlark island and New Guinea in my 

 collection. Fairmaire records three other species of the genus from Duke of York island. 

 Dr Willey obtained seven specimens, belonging possibly to four different species, near 

 Blanche Bay, but this material is not adequate for the description of new species in 

 the very difficult group of M. xylotrephes, to which these forms belong. 



Batocera lactiflua Fairm. (t.c. p. 50). Fairmaire's type was a female, entirely white 

 in colour. Dr Willey has obtained a single female of this peculiar species, but it is 

 of a griseous colour, deeply suffused with pink. 



Batocera nehulosa Bates (P. Zool. Soc. London, 1877, p. 158). Recorded both by Bates 

 and Fairmaii'e from Duke of York island : now obtained by Dr Willey in New Britain. 



Xiphotheata luctifera Fairm. (Le Naturaliste, 1881, p. 359) PL XXXV. Figs. 6, 6 a, 

 6 6; Ann. Soc. ent. Belgique, xxvii., 1883, p. 49. There appear to be only two species 

 known of this rare and peculiar genus. Fairmaire grounded his species mainly on the 

 fact of the male being destitute of the peculiar long horn on the front coxae, a 

 character that is very conspicuous in X. saundersi. Dr Willey procured three males 

 and one female of a Xiphotheata that I refer to Fairmaire's species. They show that 

 the male character mentioned above is merely an individual one; the horn being present 

 and very largely developed in two of these males (Plate XXXV. Fig. 6), and only a 

 short spine in the other (Fig. 6 a). The female is easily distinguished by the entire 

 absence of armature on the front tibia (as well as by the unarmed coxa, Plate XXXV. 

 Fig. 6 b) and by the terminal ventral plate not being prolonged at the sides behind. 

 Faii-maire's species may however be maintained, as the colour and sculpture are a little 

 different from those of X. saiuidersi. This latter species was found by Wallace in 

 Batchian, Morty, and Gilolo. Fairmaire's specimen was from Duke of York island. 



Serixia longicornis Pascoe (Tr. ent. Soc. London, 3rd ser. ill. p. 339). Two specimens. 

 Previously recorded from Singapore, Ceram, Batchian, Bourn, and (with doubt) Waigiou. 



Glenea extreina, n. sp. Rufotestaceus, antennis nigris ; capite thoraceque ochraceo- 

 tomentosis, hoc medio macula nigra ornato; elytris cyaneis, tomento griseo obscuratis, 

 apice truncato, singulo angulo externo breviter spino,so, interno recto; pectore abdominisque 

 lateribus ochraceo-tomentosis. Long. 13 mm. 



Antennae slender, rather longer than the body (in the male ?), quite black. Thorax 

 not quite so long as broad, a little constricted in front of the base. Elytra with 

 numerous large punctures irregularly arranged and wanting behind, cyaneous, but both 

 colour and sculpture rendered obscure by a dense, pallid, griseous tomentum ; there are 

 numerous erect hairs at the shoulders : the humeral angles are sharply marked, fi'om 

 each there extends backwards a carina that becomes obsolete before reaching the apex : 

 very near to this more dorsal carina there is a second one that does not commence 

 at the base, but becomes more definite behind, and projects .so as to form the terminal 

 spine : the epipleural margin is also strongly raised : the sculpture on the pseud-epipleurae 

 is very coarse, and the purple (or violet) colour is not obscured by tomentum as it is on 



