BY ARTHUR M. LEA. 601 



irregularly punctate. Scutellum depressed in the middle, the 

 sides minutely punctate and parallel, the base rounded and apex 

 emarginate. Elytra slightly widening behind, punctures large, 

 quadrate, shallow; suture, lateral margin, 2nd, 4th, and 6th 

 interstices raised and thickened; the first interstice divided into 

 three near the base, the middle one only distinct and uniting with 

 the second interstice at the base. Beneath minutely punctate; 

 the abdominal segments irregularly depressed at the sides, the 

 penultimate deeply incised. 



9. Without the incision of the penultimate segment, the 

 posterior angles of the scutellum not so produced, and the antennae 

 narrower. Length 10-11,^ width .3 mm. 



Hah. — Sydney. 



Trichalus insignis, n.sp. 



5. Black; labrum, sides of the prothorax, suture and sides of 

 the elytra red. Head, disk of prothorax, scutellum and lower 

 surface shining. 



Head distinctly impressed along the median line; the rostrum 

 very short; antennae with the joints broad, flat and, with the 

 exception of the last, jaroduced at the apex, not reaching the 

 middle of the elytra; 1st joint short, about half as long as 2nd, 

 2nd one and a third times longer than 3rd, 3rd-7th gradually 

 decreasing, 8th slightly longer than 7th, 9th shorter, 10th as long- 

 as 8th. Prothorax transverse, trisinuate at base, the sides 

 reflexed and when viewed sideways slightly wavy; the middle of 

 the apex produced; the disk with two areolets, the largest at the 

 base, the smallest joined to the apex by a carina, between them 

 and the lateral margins the surface is irregularly depressed, but 

 not divided into areolets; the reflexed margins coarsely punctate, 

 thickened just before the middle. Scutellum large, depressed in 

 the middle, rounded at the base and emarginate at apex. Elytra 

 slightly dilated to about a third from the apex, with large, 

 quadrate punctures; the suture, lateral margin, 2nd, 4th and 6th 

 interstices raised; the 1st divided into three near the base. 

 41 



