550 REDUVINA. 



Species 2. NABIS APTERUS. 



REDUVIUS APTEKUS, Fab. E. S. Sup. 546, 54 (1798) ; S. R. 281, 72 (1S03) ; 



Wolff, Ic. Cim. 201, 20, t. 20, fig. 200 (1811). 

 APTUS Ilahtty Wanz. i, 35 (1831). 



STJBAPTERUS, Ilahn, Wanz. i, t. G, fig. 24 (.1831). 

 NABIS Fieb. Europ. Hem. 160, 2 (1861). 



Black ; head, pronotum and elytra dull, yellow-brown, the 2 latter 

 mottled with fuscous, sides of the pronotum black. Legs ochre- 

 ous or yellow-brown ; thighs and tibia with 2 or 3 black or 

 brown rings. Elytra ; the corium generally short, and the mem- 

 ~brane only \ developed. Abdomen shining. 



Head smooth. Antenna yellow-brown, 1st joint \ as long as the 

 head, base and apex piceous ; 3rd just before the apex black, apex 

 yellowish ; 4th and 5th piceous ; 3rd and base of the 4th with short, 

 projecting hairs. By es black. Ocelli red. Eostrum yellow-brown ; 

 1st joint, except the apex, and the base of the 2nd, black ; 3rd and 

 4th sometimes piceous. 



Thorax. Pronotum smooth, with a few, scarcely perceptible 

 hairs ; yellow-brown mottled with fuscous-brown, most on the pos- 

 terior portion ; sides black ; posterior margin straight. (In examples 

 where the elytra are not fully developed the pronotum is not so wide 

 or convex posteriorly as in those where the elytra are fully deve- 

 loped.) Elytra yellow-brown, brighter on the corium than on the 

 membrane, mottled or obscured with fuscous ; Corium ; apex fuscous- 

 black ; Membrane at the exterior basal angle whitish, with a black 

 spot adjoining. Sternum ; the raised part round the coxse yellowish- 

 white. Legs, including the coxce, ochreous, with very fine, short, yel- 

 lowish hairs, the underside with stronger, black hairs ; thighs on the 

 sides with 1 or 2 rows of blackish spots, on the inner side punctured, 

 and 2 undefined blackish rings on the apical -J- ; tibia ; 1st and 2nd 

 pairs with 3 black-brown rings, the middle one broadest and palest ; 

 3rd pair with 2 black rings, 1 just below the base, the other 

 at the apex ; tarsi ; base of the 2nd joint, and apex of the 3rd, 

 black. 



Abdomen above and beneath very finely crenate, and with very 

 short, line, gray hairs ; Connexivum ; at the base of each segment a, 



