Australian Cistelidae. 69 



J Head, eves large and approximate, nearly contiguous 

 beneath, forehead strongly punctate, antennae joint 3 as long as 

 4, cylindric, 4-11 about equal in length, 7-9 triangularly widened 

 and hollowed beneath, not at all produced at apex, 10-11 much 

 narrower than preceding. 



Prothorax less wide than head, and rounded in front, widest 

 at middle, then subparallel to the subrectangular posterior angles, 

 these with a slight acute tendency, base bisinuate, with a medial 

 basal depression and two small basal foveae. Scutellum rounded 

 behind. Elytra very much as in A. amoenus, Pase. , for colour 

 arrangement, but seriate punctures larger. Intervals flat, strongly 

 pubescent and finely punctate, underside closely punctate, fore and 

 mid tibiae straight, post tibiae slightly curved, without any sign of 

 nodose enlargement. 



$ With eyes less approximate, antennae joints 7-!> less enlarged 

 and not hollowed beneath. 



Dimensions. — $ 6x2 mm., ? 8.5 x 3 mm. 



Habitat. — Brisbane' (H. Hacker), Killarney (the author), Sydney 

 {Lea), Clarence River (Zietz, South Aus. Mus.). 



Twenty-six specimens examined. Very near A. amoenus, Pasc, 

 so that female specimens can be easily confused, but for the very 

 different sculpture. Under a Zeiss binocular the difference is 

 strongly mark'ed in the closer and coarser punctures of the head 

 and thorax. The males may easily be differentiated by their 

 simple tibiae and the antennal joints not at all toothed, nor the 

 apical joints flattened as in Pascoe's species. It cannot be very 

 near A. nigricornis, Blackb., which has a black suture, and apical 

 joint of antennae longer than joint 10. Types in the author's coll. 



Apella-tus plebejus, n. sp. 



Elongate, subparallel, pale-brown, sometimes piceous, glabrous, 

 antennae piceous or reddish, femora pale yellow, underside tibiae 

 and tarsi red, head black, labrum and palpi red. Head, eyes large, 

 separated by a space about half the diameter of one eye, closely 

 punctate, antennae joint 3 rather shorter than 4, 4-11 of about 

 equal length, subfiliform (slightly enlarged at apex). Prothorax 

 rounded in front, rectangular behind, base sinuate; closely punctate 

 with a large post-medial and two small basal foveae. Scutellum 

 rather widely rounded behind. Elytra wider than prothorax at 

 base; striate punctate, the striae well marked, the punctures small 

 and close, intervals minutely and sparsely punctate. Underside 

 ■closely punctate. Tibiae simple in both sexes. 



