302 



combined application of the insecticides that have been found effect- 

 ive, and the persistent shaking on to sheets or stretchers saturated with 

 coal-oil. 



A NEW GENUS AND TWO NEW SPECIES OF AUSTRALIAN LAMELLI- 



CORNS. 



By Dr. David Sharp, Wilmington, England. 



The Lamellicorn sent to me by Professor Riley for determination 

 proves to belong to a genus hitherto undefined and is described below, 

 together with another allied species from Adelaide. 



Anodontonyx, no v. gen. 



Inter genera Haplonycham et Heteronycem locanduin. Labium planum. Palpi 

 labiales articulo ultimo dilatato, conico, subtus convexiusculo. Maxillae quiuque- 

 dentatae, palpis simplicibus, articulo ultimo quam penultimo duplo longiore. La- 

 brum sat crassum, angulis parum prominulis. Antennae brevissimse, 8-articulatse, 

 clava perbrevi, tri-articulata. Tarsi elongati, unguiculis simplicibus. 



The species of this genus will be readily distinguished by the dilatated 

 joint of the labial taken in conjunction with the simple claws of the feet 

 and the remarkably small club of the antennae. The maxillae looked at 

 externally appear to be only three-toothed, but there are two other 

 nearly equally large teeth concealed behind the external teeth. 



Although allied in many respects to Scitala, I think it would increase 

 the confusion prevalent in collections if Anodontonyx were merged in 

 that genus. Scitala has a longer club to the antennas, the male feet 

 not elongated, and in most of the species of the genus the labial palpi 

 have a slender terminal joint ; the base of the thorax is sinuate on each 

 side and the hind angles are well marked. 



Anodontonyx is probably numerous in species in Australia, as I have 

 five or six others belonging to it in my collection, for none of which can 

 I find names. They are all small and quite unattractive insects, and 

 are apparently of retiring habits, as the specimens obtained are very 

 few in number. 



Anodontonyx vigilans, n. sp. 



P^llide ferrugineus, crebre punctatus; corpore subtus fere nudo, ad latera parce 

 setoso; elytris inter punctaturam liDeis elongatis parum conspicuis. Long., 9-10 mm . 



Head closely and coarsely punctured, clypeal suture very distinct, 

 margin of clypeus strongly reflexed. Thorax short, moderately, 

 coarsely, and closely punctured; hind angles rounded. Scutellum 

 sparingly punctured. Elytra rather sparingly punctured, each with 

 four longitudinal linear smooth spaces extending nearly the whole 

 length, and with a broader space near the suture which, however, is not 

 free from punctures. Pygidium rather coarsely punctate. Prosternum 

 behind the coxae armed with a prominent acute lamina. Upper spur 

 of hind tibia elongate, as long as the basal joint of the tarsus. 



Australia; Koebele. 



