OF NEW ZEALAND. 1119 



in front, with rellesed 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 verv fine 

 strife on the dorsum, the sides apparently estriate. 



Underside finely punctate and pubescent ; abdomen darker than 

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

 sculptm-ed. 



!Male. Antcniur moderate, fifth joint inwardly prolonged, two- 

 thirds the length of the next one, and, like the last thi'ee, pubescent. 

 Anterior tibia bidentate externally, apical protuberance porrect. 



Length, &h; breadth, 3J lines. 



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



Sericospilus. 



Xov. gen. 

 {Sharp; Trans. Ent. Soc, 1882, Part i.. p. 83. j 



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

 vexi. Antenna; 8-articulatae, articulo 3^ quasi in medio articuli quarti 

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

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

 elougata tenui formantibus. Ligula pai"s anterior angusta ; palpi 

 maxillares elongati. Metasternum elongatum. Ung7iicicli simiplices. 



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

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

 metasternum, the narrow ligula, and more elongate maxillary palpi 

 are abundantly sufficient for generic distinction. The form is very 

 similar to that of the Patagouiau 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. Listrony.x has a similarly-formed club of the antennas, 

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

 Lacordaire pursued an erroneous course in uniting White's genus 

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

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



1987. S. advena, "-s. {Sharp).) Suhohlongus, parum con- 

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

 corporis margine laterah setuloso, capite anterius ferrugineo, poste- 

 riu3 nigricante ; prothorace irregulariter punctato, fusco-ferrugineo, 

 lateribus dilutioribus ; elytris ferrugineis nigi'o quasi marmoratis, 

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

 pedibusque testaceis : tarsis 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 FT. V. 



