370 COLEOPTERA. 



3816. Sympiestus frontalis sj). nov. Sympiestus Sharp, Man N.Z. 



Coleopt., 1). 1006. 



Elongate, not parallel, slightly convex, shining ; black, lateral margins 

 of elytra, the legs, and mandibles rufo-piceous, antennae and tarsi fusco- 

 rufous, palpi fulvescent. 



Head narrower than thoracic apex, not including the large prominent 

 eyes ; frontal impressions broad, rather shallow and finely punctured, 

 extending from the front of the eyes to the forehead. Thorax subquad- 

 rate, very slightly broader than long, base and apex subtruncate, the sides 

 gently rounded to behind the middle, a little sinuate behind, with rect 

 angular posterior angles ; dorsal groove rather slender, not reaching the 

 apex, basal fossae sulciform and elongate, the intervening space not quite 

 smooth. Elytra oblong-oval, twice the length of thorax, rather broader 

 than it is at the base ; the 3 inner striae, on each, moderately deep, 

 finely yet distinctly but not very closely punctured, the sutural one reaches 

 the apex, the others do not, the outer striae become obsolete towards the 

 .side. 



Sharp's S. syntheticus (1804), as well as S. oculatus (2439), and S. 

 modestus (2655) are easily distinguishable by their long, deep, smooth 

 frontal impressions, and S. ruficornis (1338) by its much less convex eyes. 



Length, 6 mm. ; breadth, 2 mm. 



Scarchfi, near Mount Algidus. A single specimen found by Mr. T. Hall 

 on the 20th October, 1914. 



Group Lebiidae. 



3817. Demetrida sinuata sp. nov. Demetrida White, Man. N.Z. Coleopt., 



p. 64. 



Subdepressed, nitid ; black, the forehead, mandibles, and most of tlie 

 antennae ferruginous, basal joints of these last, the legs, and palpi more 

 or less fulvescent. 



Head smooth. Thorax elongate, as long as broad, widest at or just 

 before the middle, moderately rounded there, widely and distinctly sinuate 

 behind, with acute almost prominent posterior angles ; base subtruncate, 

 a little oblique at each side ; disc almost smooth, having only some obso- 

 lete transverse striae, basal fossae prolonged as broad channels inside the 

 reflexed margins almost to the apex, mesial groove not abbreviated, the 

 apex subtruncate or only slightly emarginate. Elytra more than double the 

 length of thorax, widest behind the middle, their curvedly narrowed 

 shoulders wider than the thoracic base, apices somewhat oblique ; on each 

 there is a well-marked basal puncture on the 2nd interstice, there are no 

 perceptible scutellar striae, the indistinctly punctate dorsal striae are well 

 marked near the suture, less so near the sides ; interstices almost flat, with- 

 out discernible seriate punctation, the 3rd usually tripunctate. Pygidium 

 finely punctate and pubescent. 



Underside shining, piceo-niger, with a few fine setae ; coxae and tro- 

 chanters fulvescent. 



Well differentiated from D. picea (125) by the more elongate thorax, its 

 obviously sinuate sides and acute posterior angles, by the obUque elytral 

 apices, less deep and regular striae, by the absence of scutellar striae and 

 minute serial interstitial punctures. 



Length, 7-8 mm. ; breadth, 2-J mm. 



