522 REVISION OF THE AUSTRALIAN CURCULIONID^ BELONGING TO THE SUBFAMILY CR YPrORHYNC HIDES. By Arthur M. Lea. Part IV. This instalment deals with PsepJiolax and allied genera, forming a group not only remarkable on account of the form and sculpture of its members, but on account of their peculiar distribution. Psepholax resembles many of the Scolytidte {e.g., Hylesimis, Hylastes) not only in shape, but in structuie of limbs, parts of under surface, &c. In all, the tibiee (especially the intermediate pair) are very remarkable. Great diversity exists in the meso-sternal receptacle. In Oreda and Zeneudes the walls of the pectoral canal terminate in front in teeth-like processes. Zeneudes is the only genus of the subfamily as yet described in which the scape terminates considerably before the eye; in several other genera {e.g., Neozenexides, Oreda) the scape when drawn out at right angles to the rostrum does not appear as if it would extend back to the e3'e, but when at rest it can be seen to touch its lower extremity. Hyhomorphus, the only apterous member of the group, is perhaps the most remarkable genus of all the Australian weevils. Pectoral canal not acutely margined. Rostrum very short Psepholax. Rostrum long Hybomorphus. Pectoral canal acutely margined. Scape not attaining the eye Zeneudes. Scape attaining the eye. Mesosternal receptacle open. Receptacle witli oblique sides. Eyes finely faceted.
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