OF NEW ZEALAND. I 73 



Omosita. 



Erichson ; Lacord. Hist, des Ins. Colcop., Tom. ii.,/. 309. 



Characterized by the absence of the lobes covering the antennal 

 insertion, the antennce. have their basal joint moderately dilated and 

 rounded outwardly ; _ the labi'um is feebly hollowed in front \ the 

 mandibles are terminated by an obtuse point ; the tarsi, especially the 

 anterior, are a little more dilated : the general form, however, is the 

 same as in Amphotis (Lacord., Tom. ii.,/. 308.) 



310. O. Spinipes, n.s. Oblong-oval, rather convex, castaneous, 

 variegated with ill-defined brown spots, legs reddish testaceous, antennae 

 ferruginous with an infuscate club. 



Antennce moderate, basal joint very stout ; second shorter, but much 

 stouter than third ; third to fifth nearly equal ; sixth to eighth about 

 equal, shorter than the preceding ; club large, obtuse, three-jointed. 

 The head is rather coarsely punctured, with a few pale, hair-like setae. 

 The. prothorax is much broader than long, widely, but not very deeply 

 emarginated in front, a little rounded laterally in tront, with a slight 

 sinuation behind, the base nearly truncate ; it is rather convex, sloping gra- 

 dually towards the sides, which, therefore, are but little explanate, its 

 surface bears rather shallow punctures, and setse similar to those on the 

 head. Scutcllum large, sub-triangular. Elytra about as broad as 

 thorax, not much narrowed behind, the apices obtuse and a little 

 excised at the suture so as to expose the pygidium ; they are rather 

 convex, their margins are not dilated, they are slightly depressed near 

 the shoulders, are impressed with shallow punctures, and clothed with 

 fine dark hairs and pale yellow sette. The legs are rather stout ; the 

 tibice. compressed, arcuated, a good deal widened towards the apex, 

 finely serrate externally, and somewhat angulated at the extremity, 

 which, at the outer apex, is so produced as to form an obtuse spine ; the 

 basal joints of the front tarsi are dilated, the apical is slender and as 

 long as the preceding joints collectively. 



The insect is somewhat similar to the European O. dcprcssa, but the 

 antennal club is more compact, the body more convex, with undiiated 

 margins, and the tibiae are shorter and more expanded. 



Length, i^ ; breadth, | line. 



One example found at Whangarei Heads ; not agreeing very well 

 with the description of the genus to which it is referred for the present. 



311. O. SCUtellare, n.s. Oblong-oval, moderately convex, castane- 

 ous, with the greater portion of each elytron dark brown, legs and 

 antenuK reddish-testaceous, the club fuscous. 



The head is rather short and bears a shallow, somewhat rugose, 

 punctation. The prothorax is transverse, not much rounded, gradually 

 narrowed anteriorly, its apex a little hollowed, and the base but little 

 sinuate ; its surface is moderately closely, but not deeply, punctured, 

 and is clothed with many fine, pallid scta% similar to those on the head; 

 it is rather convex, and its sides are but slightly explanated. Scutellum 



