196 Transactions. 



annulate. Thorax at the base as broad as the elytra, gradually narrowed 

 towards the front, where it is abruptly constricted, posterior angles oblique, 

 it is longer than broad. Scutellum obsolete. Elytra parallel, narrowed 

 near the extremity, slightly biarcuate at the base. Legs moderate, stout, 

 tibige uncinate. Tarsi rather narrow, penultimate joint narrow, not at all 

 lobate, the terminal as long as the basal 3 combined, claws distinct. 



Prosternum slightly incurved and deeply constricted in front, the coxte 

 distant, yet less widely so than in Pentarthrum. Metasternum elongate but 

 shorter than the abdomen, distinctly medially sulcate. Basal ventral 

 segment longitudinally concave, not double the length of the 2nd, the apical 

 closely and finely punctate. 



After carefully studying the generic diagnoses of the Pentarthrides I fail 

 to find any genus like Trachi/glyphus. Its allies occur in the Malay Archi- 

 pelago, Japan, St. Helena, and Europe. In the New Zealand list it must be 

 placed near Microtrihus, from which, however, it is altogether different. In 

 form it more resembles Inosomus. 



The eyes are unusually convex and prominent, the scape much abbrevi- 

 ated and incrassate, the scutellum is invisible, and the rostrum is, pro- 

 portionally, broader than that of Pentarthrum. 



Trachyglyphus rugirostris, Broun. 1303. Man. N.Z. Coleopt., p. 734. 



Opaque, piceous, legs of an obscure chocolate hue, antenn?e dark red. 



Rostrum longer than broad, rather coarsely punctured and longitudinally 

 rugose, more finely in front, the whole of the head similarly punctured. 

 Thorax widest near the base, its sides only slightly curved but gradually 

 narrowed anteriorly ; its whole surface closely, rugosely,. and coarsely 

 punctured, the intervals narrow ; each puncture has a small seta, the setae 

 on the sides more perceptible. Elytra dull, the suture slightly rufescent ; 

 punctate-striate, subcrenate, the suture and interstices unusually closely 

 and distinctly seriate-punctate and rugose. 



Underside subopaque, piceous ; the head rufo-castaneous, and, including 

 the legs, bearing suberect slender brassy setre ; the whole derm densely 

 and niinutely sculptured, rather coarsely but not closely punctured. 



3- . Length, 1^ lines ; breadth, | line. 



Tairua, Auckland. Unique. 



Microtrihus, Wollaston. Man. N.Z. Coleopt,, p. 527. 



Body fusiform, subnitid, nearly glabrous, the base of the thorax and 

 elytra with a few slender hairs. 



Head convex. Rostrum rather long, of about the same length as the 

 thorax, moderately slender, parallel. Eyes small, longitudinally oval, 

 placed somewhat on the upper surface, only slightly prominent. Thorax 

 hardly longer than broad, oviform, slightly constricted in front, convex. 

 Scutellum obsolete. Elytra fusiform, base truncate. Antennae moderately 

 elongate, implanted before the middle. Scape stout, slightly flexuous. 

 Funiculus 5-articulate, laxly jointed, 2nd longer than 3rd, 4th and 5th 

 raoniliform. Club large, ovate. Legs stout and moderately long, tibial 

 hooks small. Tarsi with their 3rd joint expanded and bilobed. 



Metasternum in the middle hardly as long as the basal ventral segment, 

 both broadly impressed or concave. Anterior coxae nearly contiguous. 

 These last characters alone remove this genus from Pentarthrum and its near 

 allies, whilst the obsolete scutellum necessitates its location in the 3rd section 

 of the Pentarthrides, along Avith four African and Atlantic genera. 



