Genera and Species of Coleoptcra. 99 



small ; anterior coxa) transverse, scarcely approximate ; tibijc bicalca- 

 rato ; tarsi five-joiuted, slender, short, hairy boiu^ath. 



If rightly referred to the Cucujidac, the position of this genus will 

 bo near Silvanns, which it approaches in habit and in its clavato 

 nntenna-. 



lihi/ssOjpcra areolata. (PL VII. fig. 4.) 



JR. fusca, sparse flavo-pubescens ; prothoracis basi latiuscula; clytris 

 areolatis. 



JIab. Tai^mania. 



Opake iimber-browu, with a sparse yellowish or almost golden pubes- 

 cence, especially on the head and prothorax, the latter about as broad 

 as long, rounded at- the side, produced into a short acute angle ante- 

 riorly and slightly contracted behind, with four tubercles on its disc ; 

 scutellum transverse ; elytra with their external margins serrated, each 

 with three rows of coarsely punctured hexagonal nearly equal cells, the 

 walls of which are formed by narrow raised lines ; labrum, palpi, and 

 legs ferruginous. Leng-th 4 lines. 



Rhyssopera illota. (PI. VII. fig. 4, trophi only.) 



It. fusca, sparse griseo-pubescens ; prothorace longiore, basi angustata ; 

 elytris subareolatis. 



Hah. Australia (^Melbourne). 



Like the last, but the prothorax is longer and much narrower poste- 

 riorly, the lines bounding the areola? and punctures less inarked, and 

 the pubescence of a greyer hue. 



Glgeania [Trogositidae]. 



Head small, rounded and dilated below the eyes, emarginate in fi-ont. 

 The labrum entire. Antennae short, eleven-jointed, the last three fonn- 

 ing a subunilateral, compressed club. Eyes round, prominent. Mandi- 

 bles entu-e at the apex, toothed in the middle. Palpi robust, with the 

 terminal joint subcylindrical ; maxillary lobes finely toothed, the inner 

 narrow. Labium quadrate, slightly fringed. Mentum large, quadrate. 

 Prothorax subquadrate, narrower anteriorly, broadly sulcated at the 

 side, and slightly margined. Elytra scarcely broader than the pro- 

 thorax, subdepressed, the sides nearly parallel. All the coxse distant ; 

 femora broad, compressed ; tibiae dilated below, terminating in a series 

 of small teeth; tarsi slender, slightly ciliated beneath, the basal joint 

 minute, the second as long or longer than the third and fourth together ; 

 claws toothed at the base. Prostemum rounded behind ; mesosteraimi 

 depressed. 



The Trogositidae do not appear to have any very definite characters, 

 if we except the minuteness of the first tarsal joint, and include 

 genera varying very much in their form. Of the foiu' subfamilies 



h2 



