OF NEW ZEALAND. 1119 



in front, with reflexed margins ; labrum rather deeply concave. 

 Thorax strongly transverse, middle of base obtusely prominent ; its 

 punctures fine and distant, concealed by the clothing. Elytra finely 

 and not at all closely punctured, each with four or five very fine 

 strias on the dorsum, the sides apparently estriate. 



Underside finely punctate and pubescent ; abdomen darkerthan 

 the sternum, the latter with a few elongate hairs ; epipleur finely 

 sculptured. 



Male. Antenna moderate, fifth joint inwardly prolonged, two- 

 thirds the length of the next one, and, like the last three, pubescent. 

 Anterior tibia bidentate externally, apical protuberance porrect. 



Length, 6; breadth, 3| lines. 



Napier (Forty-mile Bush). Mr. H. Suter. 



Sericospilus. 



Nov. gen. 

 (Sharp; Trans. Ent. Soc., 1882, Part i., p. 83.) 



Corpus elongatum, haud pubescens, subtus nitidum. Oculi con- 

 vexi.. Antenna 8-articulatse, articulo 3 quasi in medio articuli quarti 

 faciei interni inserto, hoc elongate, sed articulo quinto multo breviore, 

 articulis 5-8 valde elongatis, longius densiusque setulosis, clava 

 elongata tenui formantibus. Ligulcc pars anterior angusta ; palpi 

 maxillares elongati. Metasternum elongatum. Unguiculi simplices. 



This genus is allied to Odontria, but is distinct by a number of 

 characters. The elongate form, the bare undersurface" the elongate 

 inetasternuin, the narrow ligula, and more elongate maxillary palpi 

 are abundantly sufficient for generic distinction. The form is very 

 similar to that of the Patagonian genera, Sericoides and Listronyx, 

 and it is probable that, notwithstanding the slight difference in the 

 porrection of the labrum, it is more allied to them than it is to 

 Odontria. Listronyx has a similarly-formed club of the antennse, 

 except that it is five- instead of four-jointed. It is probable that 

 Lacordaire pursued an erroneous course in uniting White's genus 

 Eusoma with Odontria ; but, as I am not acquainted with the insect 

 described by White, I cannot speak with decision as to this. 



1987. S. advena, n.s. (Sharp.) Suboblongus, parum con- 

 vexus, fere parallelus, supra opacus, subtus sat nitidus, haud vestitus, 

 corporis margine laterali setuloso, capite anterius ferrugineo, poste- 

 rius nigricante ; prothorace irregulariter punctato, fusco-ferrugineo, 

 lateribus dilutioribus ; elytris ferrugineis nigro quasi marmoratis, 

 plagis his nigris, lateraliter visis, opalescenti-micantibus, pectore 

 pedibusque testaceis ; tar sis elongatis gracilibus. 



Long., 13min. ; lat., 6min. 



The colour and sculpture of the wing-cases is peculiar ; they have 

 a rather indefinite but not coarse punctuation, which is not arranged 

 in series, and they are indistinctly costate longitudinally, the appear- 

 ance of being ribbed being caused apparently quite as much by the 

 arrangement of the colours as by elevation of the surface ; the colour 

 10 PT. v. 



