NOTONECTID-E. 589 



Head yellowisli-ciuereous, shining. Ei/es pale brown, with indis- 

 tinct darker spots. Eosfrum cinereous, last joint black. 



Thorax. — Pronotuni shining, yellowish - cinereous, posteriorly 

 greenish fuscous. SciUellum black, dull. Mytra ; Claviis ferru- 

 ginous, dull, with dark-brown confluent spots, posteriorly entirely 

 dark brown, the inner side, as far as the posterior angle, clear, the 

 ground colour gradually narrower from the base to that point ; 

 Corium ferruginous, with dark-brown, irregular, confluent spots 

 (like the clavus), which posteriorly obscure the ground colour 

 entirely ; anterior margin pale throughout ; Memhrane at the base 

 ferruginous with brown lines, the colour then, to about ^ the length, 

 on the part exterior to the fold, dark brown, opaque, the colour 

 ending roundly and abruptly; the remainder of the outer part pale 

 brownish, shining, semi-transparent ; the part interior to the fold 

 also pale brown, shining, semi-transparent, unspotted, except the 

 base, which has a ferruginous spot bordered with brown; inner 

 margin brown ; the parts on each side of the fold of equal breadth 

 and length. Iletanotum orange, with a large black spot opposite 

 the middle of the sides of the scutellum. Wings hyaline, iridescent; 

 nerves of the 2 anterior cells brown. Sternum black, clothed with 

 yellow hairs, very densely on the sides. Lf^gs greenish-yellow. 



Abdomen above, orange, with a large black spot in the middle, 

 reaching about \ the length but not extending to the sides ; apex on 

 each side greenish ; undei'side black, of the Gonnexivum orange, the 

 junction of its segments brown; ciliation of the middle keel and 

 sides yellow. 



Length, 7 — 8 lines. 



Western counties of England {Dale). 



Pabricius' description of N. macidata agrees with our insect, 

 except that he has " Scutellum album," which probably, as H. 

 Schiiifer says, is in error for " atrum." Pieber does not quote the 

 name. Mor enumerates it as a variety of iV. (jlauca. Herrich- 

 Schafier (AVanz., viii, t. 197) merely copies Curtis's figure, and 

 thinks the insect is only a var. of N. glauca {N. marmorea, Fab.), 

 and not N. macidata, Fab. Fieber's var. /3 of N. Fahrici {iimlrina) 

 agrees in some respects, but he says : " Der ganze Eucken okergelb, 

 Schienen mit grossen dreieckigen schwarzlichen Flecken, die 

 zuweilen verfliessen" (Ehyncotograph, p. 50). But whatever the 

 true name of our insect, we deem it to be a distinct species. Mr. 

 Dale, by whom only, as far as we know, it has been taken, says : 

 " Some varieties of N. glauca, with the wings closed, do not show any 



