Australian Gistelidae. 93 



Nocap, Blackburn 



1 9 Elytra striate punctate 



2 8 Intervals flat, or nearly so 



3 5 Punctures in striae distinctly larger than those of intervals 

 -t Bicolorous, elytra yellow or red with black margins 



austr aliens, Blackb 



5 Concolorous, elytra pale red or yellow securigerus, W. S. Mac! 



6 8 Punctures in stria* scarcely larger than those on intervals 



7 Size larger, shortly and sparsely pubescent, tibiae curved 



convexus, Macl 



8 Size smaller, strongly pubescent, tibiae straight 



depressvisculus, Macl 



ovatus, Macl 



debilis, Blackb 



var. lotus, Blackb 



9 Intervals convex and rugose, colour black rugosus, n.sp. 

 10 Elytra mm-striate simplex, Blackb 



Cistela securigera, W. S. Macl. (type in the Macleay Mus.), is a 

 Nocar, as is also C. convexa, Macl. 



C. ovata, Marl. — The type, in the Aus. Mus., is in a bad condi- 

 tion, and appears to have fallen into a gum bottle. Where the 

 sculpture can be seen it is almost certainly = Nocar depressiusculus , 

 Macl. 



C. polita, Macl.. is a Scaletomerus and = S. harpaloides, Blackb. 



The following synonymy is my conclusion after a close examina- 

 tion of co-types of Blackburn's species and Macleay's types : — 



N. debilis, Blackb. = N. latus, Blackb., var.=N. depressiusculus, 

 Mael.=A. ovatus, Macl. 



N. latus, Blackb., is larger than debilis, but smaller specimens 

 occur amongst them, with slight individual differences. I have been 

 unable to find the constant difference of elytral sculpture noted by 

 Blackburn (Trans. Roy. Soc, South Aus., 1891, p. 329). The fol- 

 lowing species is undescribed : — 



Nocar rugosus, n. sp. 



Oval, black, subnitid glabrous ; labium, tarsi and basal joints 

 of antennae reddish. Head and pronotum densely punctate, eyes 

 rather close, in $ wider apart than in N. securigera, W. S. Macl., 

 antennae stout, joints subtriangular, widened and angled in front. 

 Prothorax widest at base, arcuately covergin^ to apex, there about 

 as wide as head, more elongate, and narrowed anteriorly than usual, 

 front angles obsolete, posterior acute, base Insinuate, with a small 

 medial and two larger sublateral foveae. Scutellum triangular. 

 Elytra as wide as prothorax at base, deeply striate punctate.. 



