152 BRITISH ENTOMOSTllACA. 



1. CYPRIS TRISTRIATA. Tab. XVIII, figs. 1, 1 a-i ; 2, 3. 



CYPRIS TRISTRIATA, Baird, Trans. Berw. Nat. Club, i, 99, t. 3, f. 13, 



1835 ; and ii, 152. 

 Cyi'Ris PUBERA, Baird, Mag. Zool. aud Bot., i, 524, t. 1C, f. 1-13. 



Shell of an oval form, and somewhat reniform ; the 

 valves convex, and of a green colour, more or less deep. 

 The anterior portion is of a deep green, immediately 

 behind which is a portion of a lighter colour ; the pos- 

 terior part is of a less deep green, and has three narrow 

 bands or streaks, two of which are of a much deeper hue, 

 running obliquely across it. The whole shell is covered 

 with dense, short hairs. 



In some specimens, generally the largest, the shell is 

 of nearly a dirty black colour, from the dirt which adheres 

 to it obscuring the marks which distinguish the species. 

 Nearly in the centre of each valve is to be seen a congeries 

 of about seven small, lucid spots. The filaments of both 

 pairs of antennae are beautifully plumose. 



Halt. Berwickshire ; near London, &c. ; not un- 

 common, all the summer months. 



2. CYPRIS VIDUA. Tab. XIX, figs. 10, 11. 



CYPRIS VIDUA, Miillcr, Zool. Dan. Prod., No. 2384, 1776; Eutomos- 



traca, 55, t. 4. f. 7-9. 

 Latreille, Hist. Nat. Crust,, iv, 245. 

 Bosc, Man. d'Hist. Nat, Crust., ii, 297. 

 Desmarest, 385, t. 55, f. I. 

 Baird, Mag. Zool. and Bot., i, 133, t. 5, f. 1 ; Trans. 



Bcrw. Nat. Club, ii, 152. 



M. I'jlin, ,-</*, Hist. Nat, Crust., iii, 399, t. 30, f. 4. 

 MIIXOCULUS VLDUUS, <.:,,trrni, Linn. Syst. Nat., 3002, No. 42. 



M,i,/i'i'l, Euc. mrtli., vii, 726, No. 36, t. 264, 



f. 24-26. 



,1 urine, Hist. Nat. Monoc., 175, t, 19, f. 5, 6. 

 Ifn's, Cyclopaedia, art. Mouoculus. 

 MONOCULUS VIDUATUS, Fabricius, Ent. Syst., ii, 496. 



Shell of an oval form, a little siimntrd on under margin, 



