ONCOTYLID^E. 393 



Species 1. :ONCOTYLUS DECOLOR. 



CAPSUS DECOLOR, Fall. Hem. Suec. i, 123, 16 (1829) ; Meyer, Caps. 86, 

 68 (1843) ; Sahib. Geoc. Fen. 95, 8 (1848) ; Kirschb. 

 Caps. 77, 91 (1855). 



LOPUS CHRYSANTHEMI, Hahn, Wanz. i, 10, fig. 4 (1831). 



CAPSUS (CAPSUS) DECOLOR, Flor, Rhyn. Liv. i, 555, 49 (1860). 



ONCOTYLUS DECOLOR, Fieb. Europ. Hem. 298, 1 (1861). 



Head yellowish ; Crown with a blackish-brown spot near the hinder 

 margin of each eye, and frequently a broad streak, sometimes united 

 to the spot, extending along the inner margin of the eyes to the base 

 of the antenniferous processes ; Clypeus ; apex of the side lobes 

 brown ; Face ; outer margin of the central lobe generally narrowly 

 brown. Antenna brownish-yellow ; apex of the 1st joint and base 

 of the 2nd narrowly brown ; 3rd and 4th blackish. Eyes blackish- 

 brown. Hostrum pitchy-brown, tip black. 



Thorax. Pronotum generally greenish-gray ; callosities blackish. 

 Scutellum between the base and the transverse channel yellow, or 

 basal angles orange-yellow, centre blackish ; hinder portion black, 

 yellowish, or grayish- white, in the latter case with a pale longitudinal 

 line. Elytra: Clavus ; inner margin black ; disk fuscous ; base of 

 the nerve white nearly as far as the scutellar angle ; Corium, anterior 

 margin yellowish-white ; disk fuscous ; 1st nerve broadly white, 

 broadest next the cuneus ; Cuneus yellowish-white, base paler. Mem- 

 brane pale fuscous black, iridescent ; inner marginal nerve black ; 

 cell-nerves yellowish-white ; base of both cells blackish. Legs 

 greenish or grayish-white ; thighs ; 3rd pair frequently brownish 

 next the apex ; tibia with short, somewhat spinose, black hairs ; 

 apex narrowly black ; base frequently brown ; tarsi and claws 

 black. 



Abdomen. underside black ; margins of the segments and con- 

 nexivum more or less broadly yellowish or greenish-yellow ; ? 

 yellow ; margins of the segments more or less black. 



Length, 2^ 2J lines. 



The <$ is always darker than the $ , and sometimes the space 

 between the 1st nerve of the corium and the anterior margin white. 

 It is also much scarcer than the ? . 



Abundant in a field at Eltham, by sweeping amongst short grass, 

 &c., in July, and on Dartford Brent, amongst ferns, &c., in August. 



