some nondescript Lamellicorn Beetles. 283 



tanea, postice acuminata, podice triangulo cleflexo brunneo. 



Corpus infra valde pilosum ; capillis cinerascentibus. Pedes 



picei et ciliati. 

 Long. lin. 15, lat. lin. 5h- 

 Habitat in Nova HoUandia. 



This remarkable insect is from Austrab'a, and appears to be a 

 genus mediate between Glaphyrus and Chasmatopierns. Below 

 follows its generic character. 



[Corpus magnum, obesum, convexum. Antenna2 lO-articulatse. 

 Labrum magnum, porrectum, bifidum (fig 4 a, front of head ; 4 6, 

 the same within the mouth). Mandibular rectee, apice obtuste 

 (fig. 4 c, 4r?). Maxillae apice valde penicillatae (fig. 4 e). Men- 

 turn apice valde emarginatum. Labium e lobis duobus constans. 

 Palpi labiales brevissimi 3-articulati (fig. 4/). Pedes crassi, 

 unguibus omnibus intus dentibus duobus appendiculoque bise- 

 tigero instructis. (Fig. 4^'-). — J. 0. IV.']* 



* [Dr. Erichson, in a short notice of the characters of this genus, which appeared 

 in the Journal of Pioceedings of this Society, published in the Annals of Nat. 

 Hist. viii. p. 303, observes, — " Ich finde bei dera ex. unsrer Sammlung die Man- 

 dibeln klein, schuppenformig, die Spitze hakenformig eiuwarts gebogen. Die 

 vorgestreckte Leftze und die Form der ftlandibeln entfernt diese Gatlung von den 

 IMelolonthen und schliessl sie vielleicht naher an Euchirus." It is remarkable 

 that Dr. Erichson, having cited the relation with the Gtaphyrid^ mentioned in Mr. 

 Hope's observation, should have taken the pains to prove that it was not related 

 to the Meblonthida:, from which the far more impoitant character of the penicillate 

 edentate maxillae at once removes it. The mandibles in two specimens wliich I 

 have dissected, instead of having the extremity hook-shaped and curved inwards, 

 as Dr. Erichson describes, have the outer margin thick and quite straight, and the 

 inner margin very thin, and with the apex obliquely truncated, thus quite dis- 

 agreeing with the Metolonlha. The relationship suggested with Eiichiriis is of 

 great interest, existing in the form of the mandibles, dilated hind feet and denti- 

 culated ungues, accompanied by asetigerous appendage, but the porrected bilobed 

 labrum, edentale raaxillEe, and deeply emarginate mentum, are characters of too 

 high importance to allow this relation to prevail over that which it evidently pos- 

 sesses with some of the Glaphyridcs. — J, 0. TF.] 



