Monographie des Chrysomélides de l'Amérique. 329 



Chnisomela cyanea Rogers. Proc. Acad. Pliilad. VIII. p. 38. 38. 



(1857.) 

 /„ „ Suffi-. Elit. Zeit. XIX. p. 398. 38. (1858.) 



Cyaneous, shiniiig: liead piincturefl ; an obsolète longitudinal impressed frontal 

 line; labrum and palpi piceous; antennie black, or dark brown, with four basai joints 

 glabrous, sliining: tborax strongly tiuged witli grcen; protbundly and densely piinctu- 

 late: scutellum green: elytra punctured like the thorax, with a green reflectiou: beneath 

 blackisb; feet similarly colored, with a bluish or greeuish reflexctiou (sec. Melshei- 

 111 er 1. c.) 



V 3- Gastroeidea aenea Melsh. 



Bliie, slig'htly brassy; aiitemise black, with five basai joints testaceous. 

 2 1. long-. — Peniisylvauia. 



^ Gastrophi/sa œnea Melsh. Proc. Acad. Philad. HT. p. 175. 1. (184G.) 



Blue, tinted with greenish, sligbtly brassy: bead deeply and distantly punctu- 

 late, sometimes with an obsolète longitudinal frontal impression ; antennœ black, with 

 tive or six basai joints dnll testaceous; palpi piceous: thorax deeply and densely 

 punctulate: scutellum impuncîurcd: elytra much punctulate, with tlie punctures lon- 

 ger than wide, and ranged in irrcgular and approxiinate séries: Ijeneath and feniora, 

 greeuish-black, slightly brassy, tibiœ and tarsi, blackisb, or dark reddish-brown: ab- 

 domen sparsely punctulate. 



var. a. — Elytra cuprcous (sec. Melsheimer. 1. c. 



4. Gastroeidea formosa Say. 



Green-gold, brilliaiit: auteiiiise black; suture of the elytra purple; 

 beneath violaceous. 



^'- Chrysomela formosa Say. Journ. Acad. Philad. III. p. 451 4. 



(1824.) 



/• „ „ Rogers. Proc. Acad. Philad. VIII. p. 39. 40. 



(1857.) 



„ „ Suffr. Elit. Zeit. XIX. p. 399. 40. (1858.) 



Inhabits Missomi. 



Body goldeu-green, Itrilliant, punctured: antenna; and palpi black: labrum pur- 

 plish: tborax somewhat inequal; edges bluish: scutel purple, impunctured: elytra 

 slightly and irregularly rugose, punctured; suture purple; exterior edge blue: beneath 

 violaceous: tibia black. 



Length more than three-twentieths of an iucb. (sec. Say. 1. c.) 



PHYTODECTA Kirby. 



1. Phytodecta arctica Mann. 

 Oblongo-ovata, convexa, uigra; tliorace transverso, lateribus modice 



42 



