BY ARTHUR M. LEA. 743 



widely concave, but just behind intercoxal process of mesosternum 

 with a strong, acutely conical tubercle or spine. Legs rather 

 long; front trochanters obtusely dentate; front tibiae thin, with 

 a distinct median tooth. Length 2|nim. 



Hab. — Queensland (Taylor Bros.), Coen (H. Hacker). 



The antennae approach those of R. hyalina, but the eleventh 

 joint is distinctly longer and thinner, and slightly concave on one 

 side of base, the ninth and tenth are also longer. But the whole 

 insect is larger, the legs are longer, and the metasternum and 

 abdomen are very different. The species is perhaps the most 

 distinct one of its genus. 



Of the two specimens before me, one has the head conspicu- 

 ously darker than elsewhere; the other is distinctly paler, with 

 the head but little darker than the prothorax. From some 

 directions the tenth joint appears to be but little longer than 

 wide, but from others it appears almost twice as long as wide; the 

 ninth is also of somewhat irregular shape. From some directions 

 the dorsal striae appear geminate towards the base, 



Rybaxis bryophila, n.sp. 



(J. Bright reddish-castaneous, elytra and appendages slightly 

 paler. With short, depressed, pale pubescence. 



Head with a large I'ound fovea close to each eye, and one of 

 larger size in the middle in front, but slightly behind antennae. 

 Antennae comparatively stout, second and fifth joints almost as 

 long as wide, third and fourth feebly transverse, sixth moderately, 

 seventh, eighth and ninth strongly transverse, tenth large, its 

 inner apex acutely produced, eleventh briefly ovate, very little 

 longer than tenth. Prothorax distinctly transverse, sides widest 

 and strongly rounded at about one-third from apex; each side 

 near base with a large fovea, middle with a somewhat smaller 

 one, the three connected by distinct but narrow lines. Elytra 

 dilated posteriorly, but not to apex; with six small basal foveae; 

 dorsal striae sharply defined on basal three-fifths, but then 

 vanishing; with numerous fairly distinct punctures; epipleural 

 furrow short. Lower surface of abdomen gently flattened in 



