1002 COLEOPTERA 



The head is quite short, deeply impressed on each side between 

 the eyes, which are rather large. The antenna are slender and 

 rather long, each joint being much longer than broad, and the 

 second joint about as long as the basal. The thorax is not much 

 broader than long, with rectangular hind angles, and broader at the 

 base than at the front margin. Very near the lateral margin at the 

 base there is a very distinct straight plica ; and within this plica the 

 surface is depressed, uneven, and punctate, the punctuation not quite 

 reaching the plica itself. The median channel does not reach the 

 front, but extends to the base, though indistinct behind, owing to 

 the sculpture there. The striation of the elytra is regular, and there 

 is a striole near the scutellum. The striae are not punctate, the 

 interstices are flat, the plication behind very distinct. The first of 

 the three punctures on the third interstice is placed as far forward 

 as the termination of the scutellar stria, the second as far behind it 

 as it is from the base, while the third is remote, placed at about 

 two- thirds of the length. 



Greymouth. Helms. I have much pleasure in connecting Mr. 

 Helms's name with this interesting form. Some years ago I received 

 a specimen from him which I could do nothing with, as it was a 

 female ; after waiting a long time he has been able to send me the 

 male. 



1796. Z. atratUS, n -s- Body black, elytral margins slightly 

 rufescent ; legs, palpi, and antennae dark-red ; moderately shining. 



The elytral striae are finely punctate, the three punctures on the 

 third interstice are about equidistant, and there are as many punc- 

 tures on the posterior portion of the side of each wing-case as there 

 are near the shoulder. 



These characters distinguish this from the typical species. 



The form, and other details of sculpture, are similar to No. 1339, 

 so that I need not redescribe them. That insect, referred provision- 

 ally to Oopterus, must be placed with the preceding species so as to 

 become Zolus carinatus. The wings of the mentiim are large and 

 prominent, but the tooth is small. There are, too, three or four 

 lateral punctures on each elytron behind. The fourth anteunal joint 

 is as long as the third, and its basal portion is glabrous under- 

 neath. 



Length, 4 ; breadth, 1-| lines. 



I found one female under a stone, in the bed of a stream, just 

 below the snow-line on Mount Egmont. 



Group POGONID^ . 



Oopterus (Gen., p. 54). 



1797. O. COllaris, n.s. Shining, pitchy-black ; legs, antennae, 

 palpi, and elytral margins rufous. 



Prothorax moderately convex, almost as long as broad, widest at 

 the middle, its sides but little rounded, and having only a short and 

 slight sinuation in front of the rectangular posterior angles ; central 



