(54 [August, 



myself that it differed from it (in whicli conviction I still remain after 

 careful examination), and that my C. onontivagus is so closely allied to 

 O. insidaris, Motsch (which species I have in my own collection from 

 New Zealand), that in describing it I thought it well to point out 

 wherein it differed from the latter. This suggests strongly to me the 

 idea that Dr. Karsch and I have, in this instance, the same two insects 

 in view, and that we have arrived at different conclusions concerning 

 them. A renewed examination of the matter leaves me still quite 

 satisfied with my determination of them as new. My descriptions will 

 be found in Ent. Mo. Mag., vol. xv, pp. 122 and 15G. 



The fact that I suppose Dr. K. and myself to have referred the 

 same insect to different genera will not appear strange to any one who 

 has worked at Polynesian CaralidcB ; indeed, a reference to Lacordaire's 

 remarks, in the " Genera des Coleopteres," on the genera concerned, 

 will show that their affinities were subjects of perplexity to that 

 author himself. 



Cathedral Close, Honolulu : 

 ^rd June, 1882. 



DESCRIPTION OF A SPECIES OF PSYLLID^ RECENTLY NEW 

 TO GREAT BRITAIN. 



by john scott. 



Tkioza ceithmi, F. Low. 

 Verb. z.-b. Ges. Wien, p. 556 (1880). 



Overwintered examples. — S black. Head black ; crown about twice as broad 

 between the ejes as the length down the centre, the margin white, a little higlier 

 than the disc, on each side of the central channel a short longitudinal whitish line, 

 disc near the base with a somewhat deep fovea, slightly curving in the direction of 

 the ejes. Face-lohes perpendicular to the crown, white, stout at the base, clothed 

 with a few fine white hairs. Eyes dark purple-brown, posteriorly with a narrow 

 white margin. Antenna black, let, 2nd, and 3rd joints fuscous-white,|2nd narrowly 

 blackish at the base, 3rd longest, about \\ times longer tlian the 4th. 



Pronotiim white, with a black puncture near the extremities ; mesonotttm black, 

 dull, anterior portion (dorsulum) with a very fine, longitudinal, brown, central line, 

 central portion with four lines placed one on each side of the centre, and another a 

 little remote from the last, extremities brown, apical or scutellar portion black. 

 Elytra transparent, with an extremely faint brownish tinge, marginal nerve brown, 

 palest next the base, apex narrowly roijnded, length about 2^ times that of the 

 breadth, greatest breadth across the inner branch of the dorsal fork of the cubitus, 

 radius long, straight from the base to beyond the middle, where it slightly but per- 

 ceptibly curves towards the costal margin, the distance between the apex of the 

 radius and the up))er branch of tlie adjoining furcation, which joins the marginal 



