OF AISTEALIAN PHYTOPHAGOUS BEETLES. 4G1 



subquadrate, its apex obtusely rounded. Elytra not broader 

 than tlie thorax, parallel, sides slightly lobed at the base ; above 

 convex, slightly thickened near the scutellum, rather strongly 

 punctured, the punctures arranged tovi^ards the apex in ill-defined 

 longitudinal rows ; interspaces transversely wrinkled, those near 

 the apex longitudinally thickened. Prosternum narrow in front, 

 concave on the sides, dilated posteriorly, the hinder apex obtusely 

 angled. 



Ehombosteenus GEACiLicoiiNis. Elongatus, subcylindricus, 

 flavus, nitidus ; supra pallide piceus, thoracis marginibus scutello- 

 que flavis ; antennis gracillimis, corpore multo longioribus ; thorace 

 rugoso-punctato, disco plaga nigra, antice bifurcata, oruato ; 

 elytris rude punctatis, punctis pone medium striatim dispositis ; 

 interspatiis crasse transversim reticulatis, inter strias longitu- 

 dinaliter costatis. § . Long. 3 lin. 

 Foem. thoracis plaga nigra obsoleta. 

 Hob. "Western Australia. 



Head rotundate, rugose ; eyes deeply notched ; antennae very 

 slender, much longer than the body, the basal joint thickened, 

 the second very short, the third and following ones elongate, the 

 fourth rather shorter than eitlier the third or fifth, these latter 

 equal. Thorax more than twice as broad as long ; sides broadl}-- 

 margined, rounded, converging towards the apex, the anterior 

 angle armed with a short subacute lateral tooth ; basal margin 

 slightly oblique and faintly bisinuate on either side, median lobe 

 broad, slightly concave ; above convrex, obliquely depressed on 

 either side behind the middle ; the surface in front of the median 

 lobe, together with the lobe itself, also depressed ; surface coarsely 

 rugose-punctate ; the reflexed lateral border, a narrow line on 

 the apical margin, and another less defined bordering the base 

 pale yellow ; at the base, just in front of the median lobe, is a 

 small piceous patch. Scutellum broadly wedge-shaped (rather 

 narrower in the male), its apex broadly and obtusely rounded, its 

 basal margin narrowly edged with black ; surface plane, impunc- 

 tate. Elytra scarcely broader than the thorax, oblong, the sides 

 parallel, moderately lobed, the lateral margin reflexed ; above 

 convex, thickened near the scutellum, very coarsely punctured ; 

 interspaces strongly and transversely reticulate, longitudinally 

 costate near the apex and on the extreme lateral margin. Pro- 

 sternum much longer than broad in the male, rather broader in the 



