Longicornia Malayana. 45 



as coarse ; body beneath dark brown ; legs and antennae darker 

 than the elytra. ^ 



Length 1| lines. 



Gyaritus. 

 Gyaritus, Pascoe, Trans. Ent. Soc. ser. 2, iv. 244. 

 Caput antice quadratum, tuberibus antenniferis nullis. Oculi 

 late emarginati. yintenrxs corpore parum longiores, validee, 

 setosse ; scape oblongo-ovato, incrassato, articulis tertio quar- 

 toque sequalibus, scapo brevioribus, caeteris, quinto excepto, 

 aequalibus. Prothorax longior quam latior, et capite vix 

 latior, lateribus in medio spinosus, disco spinis duabus recur- 

 vatis. Elytra suboblonga, basi spina armata. Femora snb- 

 clavata ; tarsi validi, subelongati. Corpus setosum. 

 So far we have been dealing with genera with simple elytra ; in 

 this and Axinyllium these organs have a curved elevated spine at 

 the base of each, and behind the spines the elytra are more or less 

 depressed. This depression attains its maximum in the genus 

 Oloessa, a remarkable form, which, as the most aberrant genus of 

 the group, I have placed at the end. In the three genera there 

 is also an arching, more or less, of the prothorax and head ; this 

 is the most decided in Oloessa. These peculiarities would almost 

 seem to indicate another type of form, but from what I have said 

 above, it will be seen how graduated are these modifications, and 

 how difficult it is to use them satisfactorily as a means of classifi- 

 cation. In G, harnatus the anterior acetabula are entire. 



Gyaritus harnatus. 

 Pascoe, 1. c, pi. xxv. fig. 6. 



G. purpureo-niger ; elytris fasciis tribus interruptis, duabus 

 anticis fere obsoletis, albis. 



Hab. — Sarawak. 



Purplish-black, with numerous erect black hairs ; head thickly 

 and rather coarsely punctured ; eyes black ; prothorax, like the 

 head, with scarcely any pubescence, very coarsely punctured, the 

 lateral spine small, the discal spines rather approximate at the 

 base, and a little recurved ; scutellum broadly triangular, the sides 

 rounded ; elytra with a very short, close pubescence, deeply 

 punctate-striate, the basal spines slightly recurved, behind these 

 spines two very obscure almost-obsolete oblique bands inter- 

 rupted at the suture, towards the apex a broader band nearly 

 white, but sometimes also almost obsolete ; body beneath reddish- 

 chesnut; legs and antennae ferruginous. 



Length 2 lines. 



