BY H. J. CARTER. 249 



Omolipus punctato-sulcatus, n.sp. 



Moderately elongate, sub-nitid. Head, pronotum, underside and legs black, 

 elytra dark blue (almost black), antennae and tarsi reddish brown. Head 

 jninutely punctate in front, smooth on vertex. Prvnotum moderately convex, apex 

 produced in midde, base truncate, sides but slightly rounded anteriorly and a 

 little sinuate behind; lateral border visible from above; disc smooth. Elytra elon- 

 gate-ovate, shoulders rather sharply rectangular and a little advanced ; sides Jeebly 

 enlarged behind middle, lateral border narrowly horizontal; punctate-sulcate with 

 8 well-marked sulci (besides the extreme lateral one), and without the usual indi- 

 cation of a short scutellary row of punctures; the intervals convex, punctures in 

 sulci large, regular, crenulating the sides of intervals. Underside nearly smooth, 

 some minute punctures on sternum and apical segments of abdomen. 



Dimensions : 7 — 9 X 3 — 4 mm . 



/fab.— Batchelor and Stapleton, N. Territory (Mr. G. F. Hill). 



Three examples (1 d', 2 2) sent by Mr. Hill (of the Institute of Tropical 

 Medicine, Townsville) show a species near coeruleus Cart, in form and sculpture, 

 but in colour something between 0. (jnesioides Pasc. and 0. cyaneipennis Champ., 

 the elytra being of a blue-black shade sometimes seen in gnesioides, while the 

 pronotum is smoother but less nitid than in that species. In most other species 

 there is a short scutellary row of punctures (in O. gnesioides about 2 or 3), or a 

 short sulcus as in O. coeruleus; the absence of this in punctato-sulcatus is a di.i- 

 tinctive character. 



Types in Coll Carter. 



Besides the synonymy noted above the following should be recorded : — 



(i.) Chalcopterus smaragdulus F. ^^ C. cairnsi Blackb. 



(ii.) C. cupreus F. ^ C. rusticus Blackb. 



(iii.) C. setosus Blackb. = C. cupriventris Cart, (var.) 



(iv.) Axgniton championi Blackb. = Catopherus corpulentus Cart. 



(v) Sirrhas liiiibcitu,'. Champ. = Nof.ulea limbata Cart. 



Of C. cupreus F. (a long-standing mystery), Mr. Blair writes "is brassy be- 

 coming pijrple and iinely narrowly bluish behind, the latter" [rusticus.] "purple 

 becoming bluish behind. The sculpture seems to be identical." 



Of (iii.) Mr. Blair writes, "I think — are colour forms of the fame." Appar- 

 ently the metallic underside is not constant. 



In (iv.) and (v.) the genera Catopherus and Notolea must be sunk. In the 

 former case I failed to diagnose Blackburn's species; in the latter I had not seer 

 Mr. Champion's paper dealing with this very unusual Lagriid. 



