OF NEW ZEALAND. 265 



the sides ciliate, the suture with an indistinct stria. The front part of 

 the lah'um is broad and very short, and its anterior edge emarginate. 

 The tarsal dazvs are simple. 



I am indebted to Mr. Pascoe for the only individual I have seen 

 of this species. There are a great number of allied species in Australia, 

 but the genus has not before been indicated as represented in New- 

 Zealand. I have in my collection a New South Wales species (I believe 

 undescribed), which is extremely closely allied to H. piiiiiiiiis, but is a 

 good deal broader. 



Odontria. 



Whiie ; Voy. Er. Terr., Ins., p. lo. 



Mcntum obtrapezoidal, its ligular part very much narrower than the 

 other, oblique and sinuated in front. External lobe of the jaivs fur- 

 nished with four or five teeth. Last joint of the palpi oval, that of the 

 maxillary oblong-oval. Labriim rather prominent, almost horizontal, 

 semicircularly hollowed in front. Head broad, the clypeus separated 

 from the forehead by a flexuous furrow, widely rounded in front and 

 margined. Anteiuice eight-jointed ; the basal stout, obconical ; second 

 pyriform ; third elongate, obconical; fourth and fifth of variable form; 

 joints six to eight forming an oval club. Prothorax transversal, w^idely 

 and strongly emarginated in front, with a membraneous border, rounded 

 and somewhat angulated laterally, and rather strongly lobed at its base. 

 Elytra oval, moderately convex. Anterior tibicE tridentate, the others 

 carinated externally; tarsi rather long, their joints thickened apically, 

 claws long, moderately arcuated, simple. Pygidiuin transversal. 



Note. — Lacordaire, from whose work the above description has been 

 translated, remarks (Hist, des Ins. Colcop., Tom. iii., p. 234 j that White 

 placed species in three genera (Odontria, E 11 soma, and R/iizotroi^iis) 

 which really belong to one natural group (Odontria), but adds that in 

 those he placed in that genus, the fourth and fifth antenna! joints are 

 prolonged inwardly, whilst the third, as stated by Mr. White, is furnished 

 at its base with a stout tooth among the males ; in White's Eusoma the 

 fifth joint only is produced, and in Rliizotrogus, these two joints (fourth 

 and fifth) are not at all prolonged inwardly. These disparities I shall point 

 out in the specific descriptions which follow. There are other details 

 that seem to have escaped observation. For instance, the form of the 

 clypeus is subject to variation, and the fourth and fifth joints of the 

 antenniu when much prolonged are dull with fine pubescence, so that 

 they cannot be distinguished from the club itself, and in my opinion the 

 club, in such cases, is really four or five jointed. I have arranged the 

 species in such a way that the more robust forms will be succeeded by 

 the elongate. 



466. O. striata, White; Voy. Er. Terr., Ins., p. 10. Head brown, 

 deeply punctured, behind smooth and yellow ; clypeus yellow, with a 

 brown si^ot behind ; thorax deep brown, the sides and some other spots 

 yellowish, covered with longish yellow hairs, with some black inter- 



K ii 



