74 COLEOPTERA 



Group COLYMBETHXE. 



Antenna eleven-jointed, inserted immediately in front of and a little 

 below the eyes. Scutellum distinct or not. Tarsi five-jointed ; the 

 three first of the anterior pairs more or less dilated among the males, 

 but without lamella?, and furnished underneath with cupules of equal, 

 or nearly equal, size ; posterior tarsi rather compressed ; hind coxae of 

 normal form. Prosternum always straight. 



Colymbetes. 



Clairv. ; Lacord. Hist, des Ins. Coleop., Tom. i., p. 422. 



Middle lobe of the mentum short, narrow, and entire. Last joint of 

 the palpi slightly oval, a little arched, and truncated at the extremity, 

 that of the labial shorter, but that of the maxillary longer, than the 

 penultimate. Labrum more or less emarginated in the middle, and 

 ciliated. Head broad, epistome truncated in front ; eyes a little promi- 

 nent. Antenna rather long, slender, setaceous, their first joint thick, 

 the second, in general, shorter than the others. Prothorax very short, 

 rounded and often sinuated at its base, its anterior angles projecting. 

 Scutellum distinct. Elytra oblong-oval. Anterior and intermediate 

 legs short ; their three, very rarely their four, basal joints sometimes 

 strongly, sometimes only slightly, dilated among the males ; the second 

 and third furnished below with moderate cupules, of equal size, the 

 first often quite smooth, their claws equal or unequal ; the posterior 

 tarsi very much compressed, and ciliated, with unequal claws, the 

 external very large and fixed, the internal very much smaller and 

 mobile. Prosternal process compressed, carinated, terminating acutely. 

 Body oblong-oval, a little convex, or almost depressed. 



140. C. mfimanus, White; Voy. Er. Terr., Ins., p. 6. Head 

 narrow, between the eyes black, with a transverse reddish line ; clypeus 

 reddish ; thorax reddish, with a lozenge-shaped black spot in the 

 middle ; elytra yellowish, thickly spotted with brown, margin without 

 spots, suture brownish, with a narrow yellow line on each side ; under- 

 side deep blackish brown ; two first pair of legs light rufous. 



Length, 5^ lines ; breadth, 3 lines. 



New Zealand. 



This species comes near C. pacificus, Boisd., Voy. AstroL, 50; Aube, 

 Spec. Gen. Hydroc., vi., 268. 



NOTE. I have found this species in several localities and believe it 

 occurs throughout New Zealand. I have also found a male specimen 

 of a rather pretty, striped species, near Whangarei Heads, and have one 

 each from Professor Hutton, Mr. C. M. Wakefield, and Mr. F. M. 

 Meinertzhagen, of Napier ; this, I have but little doubt, has been also 

 received by Dr. Sharp, so I leave it in his hands. 



