386 Transactions 



identical with either of these. The elytral interstices are not flat in 

 M. quoin ense. 



$. Length, 23 mm. ; breadth, 7^ mm. 



Near Martinborough, Wellington. Mr. A. O'Connor. Unique. 



Group Anchomexidak. 



3169. Ctenognathus simmondsi sp. nov. Ctenognathus Fairmair, Ann. 



Soc. Ent. France, 1843. 



Black, moderately nitid, femora infuscate, tibiae, tarsi, antennae, 

 and palpi ferruginous. 



Head oviform, constricted behind the prominent eyes, with a pair 

 of setae near each of these, the frontal impressions elongate. Thorax of 

 equal length and breadth, widest just before the middle, well rounded 

 there, strongly sinuate behind, but nearly straight, or extending slightly 

 outwards, near the base, with rectangular posterior angles, lateral mar- 

 gins reflexed throughout; basal fossae large, prolonged forwards as 

 broad marginal channels almost to the apex, so that the disc appears to 

 be on a higher plane; the deep median groove becomes obsolete towards 

 both extremities; the oblique frontal linear impressions are well marked, 

 the transversal discoidal and the longitudinal basal wrinkles are 

 feebly impressed. Elytra oblong-oval, with gradually and regularly 

 rounded shoulders; they are obliquely narrowed but only slightly 

 sinuated apically; dorsum slightly convex, with sharply marked and 

 almost impunctate striae and scutellar striolae; interstices nearly plane, 

 without perceptible punctures. 



Antennae elongate, reaching backwards beyond the middle femora. 

 Tarsi elongate, the ijosterior feebly ridged and bisulcate above. 



Nearly related to the Southland G. littorellus (2670), which, however, 

 has convex elytral interstices and different thoracic channels. In 1686, 

 C. adamsi, the basal fossae are only prolonged as far as the middle of 

 the sides, and the lateral rims are less reflexed. 



Length, 11mm.; breadth, 4| mm. 



Mount Quoin, near Wellington. Found at an altitude of 1,000 ft. 

 by Mr. Hubert W. Simmonds, after whom it has been named. 



3170. Tarastethus amplipennis sp. nov. Tarastethus Sharp, Man. N.Z. 



Coleopt., p. 1003. 



Nitid, nigrescent, suture and margins of elytra slightly rufescent ; 

 femora yellow; tibiae, palpij and antennae testaceous, the basal joint of 

 these last always so, the following ones sometimes darker; mandibles and 

 labrum piceo-rufous. 



Head impunctate, the elongate frontal impression and subocular 

 groove at each side with a cariniform interval. Eyes large, finely 

 faceted. Labium almost truncate, with 6 setigerous punctures. Thorax 

 about a third broader than long, widest near the middle, rounded there, 

 moderately narrowed and slightly sinuate behind ; lateral margins some- 

 what expanded in front, so that the angles seem obtusely prominent; 

 posterior angles sharply rectangular, usually projecting outwardly ; disc 

 moderately convex, nearly perfectly smooth, its central groove not 

 attaining the base or apex; basal fossae large and deep, the interval 

 distinctly punctured, a shallow oblique impression which extends to- 

 wards the middle, at each side, causes the area near the angle to appear 

 explanate and elevated. Scutellum distinct. Elytra large and convex, 



