482 MR. F. p. PASCOE ON THE CUKCULIONID^. 



turn primum abdominis protensa, apice apei'ta. Metasternum 

 modice elongatum. Abdomen segmentis intermediis ajqualibus. 

 There is only one other genus in the subfamily in which the 

 pectoral canal passes beyond the metasternum — Panoleus ; and in 

 that it extends to the extremity of the abdomen. The only spe- 

 cies of this genus is an insect of a dark chocolate- colour, the scales, 

 from their position, having a clotli-like texture, with the sides of 

 the prothorax and elytra ochreous grey ; on the former the grey 

 begins at the apex, leaviag a well-limited dark triangular patch on 

 the centre and base. The genus may be placed after Mecistocerus. 



Metrania palliata. (PL XIII. fig, 11.) M. breviter elliptica, 

 fusca, rude sqixamosai rostro nitiile castanco, basi grosse, rcliquo 

 subtilissime vage punctulato ; antennis subfcrrugineis, funiculo articu- 

 lis 2. 3. paulo longioiibus ; prothorace utiinque, humeris lateribusque 

 elytrorum ochraceo-squamosis, tlorso chocolatino-brunneo ; corpovc 

 infra niticle fusco, puuctis dispersis singulis squama grisca repletis j 

 pcdibus sat dense griseo-squamosis. Long. 4 lin. 



Ilab. Cayenne. 



Mettrus. 



(Cryptorhynchiuse.) 



Rostrum validum, subarcuatum ; scroles medianse, laterales. Fu- 

 niculus breviusculus, articulis duobus basalibus longioribus, 

 ultimo latiore ; clava elongata, subadnata. OcuU tenuiter gra- 

 nulati. Prothorax transversus, antice angustus, apice productus, 

 lobis ocularibus prominulis. Elytra prothorace vix latiora, 

 humeris callosa. Femora tihia'x\\vQ eomprcasa), ilia longiuscula, 

 valida, infra dcnto instructa ; ha) breves, basi cxius angulatai ; 

 tarsi normales ; unguiculi divergentca. Mesostemum yalde 

 elevatum, fornicatum. 



It is verj'^ probable that CryptorJiynchus albicollis, Germ., be- 

 longs to this genus. Unfortunately Oryptorhynchus has become 

 one of those thoroughly vague generic names that carries with it 

 no idea of definite characters ; but the colouring, which is remark- 

 able, is very similar to that of the species described below. This 

 genus belongs to the Chcetectetortis form, and is allied to Meta- 

 cymia, which has a small claw -joint, a longer metasternum, and a 

 broad intercoxal process, CMmades, another ally, has, inter alia, 

 straight, terete tibia). 



Metyrus collaris. (PI. XII. fig. 4.) M. obovatus, fuscus, squa- 



