190 IOWA ACADEMY OP SCIENCES. 



Sub. sp. I. obtusa. Lower half of face fuscous or black. 



Var. a. Dark; a distinct oblique, light band on hemelytra; prono- 

 tum, anterior half, light yellow, divided by a transverse 

 brown band. 

 Habitat: Iowa, New Hampshire, Massachusetts, New York, Maryland, 

 District of Columbia, West Virginia, Ontario, Canada. 



Var. b. Light; same markings as above, only much lighter and less 

 distinct. 

 Habitat: Iowa, New York, District of Columbia. 



Var. c. Dark; hemelytra coppsry; thorax without band; pronotum 

 yellowish (achatina). 

 Habitat: Pennsylvania. 

 "Sub. sp. II. liaeatocollis. Lower half of face dark with a light band 

 -crossing the middle, 



Var. a. Pronotum entirely dark; scutellum yellow; legs light with 

 lateral dark lines. California. 



b. Pronotum, posterior half dark, anterior half sulphur yellow: 



lines on femur and tibia broad, almost confluent. Colorado. 



c. Pronotum light yellow, narrow brown band anteriorly; legs 



light, lateral line faint; dark band on clypeus reduced to 

 a dot; hemelytra pale rufous, nervules brown, very distinct 

 West Virginia, District of Columbia. 



d. Pronotum entirely sulphur yellow; hemelytra dark coppery; 



legs brown. Maryland, District of Columbia. 

 Sub. sp. III. osborni. Face entirely light, bands on front obscure. 



Var, a. Light olive green; scutellum sulphur yellow. Colorado, 

 Wisconsin, West Virginia, District of Columbia. 



b. Copper colored throughout {testacea). New York, West 



Virginia, District of Columbia, New Jersey. 



c. Black; posterior margin of vertex, anterior margin of 



pronotum, costal margin of hemelytra, and legs yellow. 

 (Pini) North Carolina, District of Columbia, New York 

 (Fitch). 



The following original descriptions may assist in recogniz- 

 ing the corresponding sub. sp. and varieties. Var. a, under each 

 sub. sp. , being its type, and of course the only one to which 

 the description will entirely ai:)ply. 



C. achatina. — (Germ. Zeit. fur Ento. Vol. I , 167.) Testacea, f route 

 nigra, elytris ante apicem fuscis, macula submarginali ante apicem nigra, 

 femoribus medio fuscis. Hab. in Pennsylvania, Zimmermann. Two bis 

 2i lin. lang, rothgelb oder grau gelb, stirn und Mittlebrust, bisweilen auch 

 der Hinter-theil des Bauches schvvarz. Deckschilde von der mitte weg bis 

 vor die Spitze Schwarzlichbraun, doch bleibt ein Fleck am Seitenrande 

 hell. Die Ader des vorderrandes fuhrt vor ihrer Spitze einen schwarzen 

 Fleck. 



C. lineatocollis. Stal. (Eng. Resa, Omk. jord. IV, 286 ) Caput dilute 

 flavescens, verticis marginibus basali et apicali lineisque transversis 

 frontis apicem versus longitrorsum impres.'-a^ nigrofuscis. Thorax postice 



