OF NEW ZEALAND. 883 



margins distinct, bent inwards at the base without forming distinct 

 angles there ; its surface finely strigose, the dorsal groove and frontal 

 impression w'ell marked. Elytra oblong, rather broad, narrow^ed 

 towards the shoulders, apices subtruncate ; they are not deeply 

 striate, and their foveas are small. Underside shining-black, wdth 

 many minute grey hairs. 



Nearly allied to S. ediuardsi, but shorter and comparatively 

 broader ; the thorax notably broader, its sides more obviously augu- 

 lated, and, consequently, more narrowed posteriorly ; the hind-body 

 is decidedly broader, less evidently striate,' the foveas are not nearly 

 so conspicuous, and the apices are more truncate, not so oblique.. 



Length, if lines ; breadth, f . 



Habitat, Mount Mauugatua. Collected by Mr. S. W. Fulton. 



1571- S. anteimalis, 'i-s. Black, shining, (except the rufes- 

 cent tips of the palpi and mandibles, and the second and third joints 

 of the antennae) concolorous. 



Head longitudinally strigose, eyes large and prominent. Pro- 

 thorax about as long as broad, widest just before the middle, not 

 distinctly angulated there, narrowed behind, lateral margins bent 

 inw^ards at the base ; its surface transversely strigose, and par- 

 ticularly at the sides and front, finely and densely punctate-rugose. 

 Elytra moderately broad, narrowed basaliy ; apices obliquely 

 truncate ; rather feebly striate, foveas small. 



A form just intermediate between S. edicardsi and the preceding 

 species, S. cognatus ; distinguished from the former by being shorter 

 and rela^tively broader, without its silky gloss, &c. ; from the latter 

 by the less prominent antero-lateral margins of the thorax and more 

 oblique elytral apices. 



Length, if-if lines; breadth, f. 



Three examples were brought from the mountainous region of 

 Lake Tekapo by Messrs. Cheeseman and Urquhart. 



Group-HYDROBIID^. 



Berosus. 



Hist, dcs Ins. CoUop., Tom. i., p. 458. 



1572. B. mergUS, «-s. Sub-oblong, convex, shining; head and 

 thorax aeneous (metallic), the latter broadly marginated at the sides 

 and front vath testaceous; elytra dingy-testaceous; legs, antennas, 

 and palpi pale-yellow^ ; the extremity of the palpi, antennal club, 

 base of femora, and the underside blackish. 



Head moderately closely and deeply punctured ; eyes prominent. 

 Prothorax transverse, broadly rounded in front, sides parallel, 

 anterior angles rounded, posterior rectangular, base bisinuate ; its 

 surface not so closely punctated as the head. Scutellum elongate- 

 triangular, punctate, margins smooth. Elytra sub-oblong, convex, 

 narrovv'ed tow^ards the shoulders, apices simple ; humeral region 

 somewhat elevated, each elytron bears ten rows of closely-placed 

 punctures sometimes assuming the form of stria, the second ter- 

 minating at the middle ; interstices broad, nearly plane, the fourth, 



