482 MR. E. SAITNDERS ON NEW SPECIES OF STIGMODERA. 



lines to the posterior angles ; base with a shallow median lobe ; sur- 

 face shining, deeply punctured, with two smooth irregular transverse 

 spaces near the anterior margin, and two smaller longitudinal ones 

 near the base ; dorsal line widely impressed and deeply punctured ; 

 near the posterior angles on each side is a slight rugosely punc- 

 tured fovea. Elytra twice as long as wide, punctate-striate, shoulders 

 rather prominent, sides sinuate above the middle, apex of each with a 

 sharp external spine and a small sutural tooth. Beneath and legs 

 punctured, slightly pubescent. 



Length 7 lines, breadth 2^ lines. 



Hab. North-west Australia. 



Stigmodera trimaculata. (Plate X. fig. 49.) 



Capite nigro ; thorace flavo, macula nigra ad basin posita ; elytris 

 flavis, punctato-striatis, macula utrinque post medium apiceque ni- 

 gris ; subtus cyanea. 



Head black. Thorax and elytra testaceous ; the former with an oval 

 black spot in the centre of the base ; the latter with a transverse spot 

 on each behind the middle and the apex of the same colour.. Be- 

 neath and legs and antennae cyaneous, the sides of the thorax ex- 

 cepted, which are testaceous. 



Head deeply punctured, with a deep incision to about its middle be- 

 tween the eyes. Thorax once and two-thirds as broad as long at the 

 base ; anterior margin slightly raised, emarginate, scarcely half as 

 long as the base; sides diverging rapidly for two-thirds of their length, 

 then converging to the posterior angles ; base with a narrow small 

 median lolje ; disk transversely raised; surface finely punctured, dorsal 

 line marked by a deep longitudinal incision near the base. Elytra 

 not quite twice as long as wide, punctured and striated ; sides si- 

 nuate above the middle ; apex of each armed with an external spine. 

 Beneath and legs punctured, covered with very short white hairs. 



Length 7 lines, breadth 2f . 



Hab. North-west Australia. 



Stigmodera producta. (Plate X. fig. 50.) 



Capite thoraceque seneo-viridibus, nitentibus, hujus disco linea dorsali 

 fortiter impresso ; elytris punctato-striatis, nigris, utrinque tribus ma- 

 culis testaceis, horum marginibus externis sanguineis ; subtus senea, 

 pedibus Isete cyaneis. 



Head and thorax bronzy. Elytra black, with greenish reflections, with 

 an irregularly triangular spot above the shoulder, a somewhat oval 

 one not quite touching it, situated about a third of the entire length 

 of the elytra from their base, and a large lateral one produced near 

 its upper extremity, across about three-quarters of the elytron, fla- 

 vous ; the exterior margins of this and the humeral spot are san- 

 guineous. Beneath bronzy green, legs and antennae ceruleous. 



Head finely punctured, channelled between the eyes. Thorax at the 



