MONOGRAPHIE DES CHRYSOMÉLIDES DE L'AMÉRIQUE. 329 
Chrysomela cyanea Rogers. Proc. Acad. Philad. VII. p. 38. 38. 
(1857.) 
Y »  Suffr. Ent. Zeit XIX. p. 398. 38. (1858.) 
Cyaneous, shining: head punetured; an obsolete longitudinal impressed frontal 
line; labrum and palpi piceous; antennæ black, or dark brown, with four basal joints 
glabrous, shining: thorax strongly tinged with green; profoundly and densely punctu- 
late: seutellum green: elytra punctured like the thorax, with a green reflection: beneath 
blackish; feet similarly colored, with a bluish or greenish reflexction (sec. Melshei- 
mer l. e.) 
3. GASTROEIDEA AENEA  MELSH. 
Blue, slightly brassy; antenne black, with five basal joints testaceous. 
2 1. long. — Pennsylvania. 
Gastrophysa enea Melsh. Proc. Acad. Philad. II. p. 175. 1. (1846.) 
Blue, tinted with greenish, slightly brassy: head deeply and distantly punctu- 
late, sometimes with an obsolete longitudinal frontal impression; antennæ blaek, with 
five or six basal joints dull testaceous; palpi pieeous: thorax deeply and densely 
punetulate: seutellum impunetured: elytra much punctulate, with the punctures lon- 
ger than wide, and ranged in irregular and approximate series: beneath and femora, 
greenish-black, slightly brassy; tibiæ and tarsi, blackish, or dark reddish-brown: ab- 
domen sparsely punctulate. 
var. a. — Elytra eupreous (sec. Melsheimer. l. c. 
4. GASTROEIDEA FORMOSA SAY. 
Green-gold, briliant: antennz black; suture of the elytra purple; 
beneath violaceous. 
Chrysomela formosa Say. Journ. Acad. Philad. III. p. 451. 4. 
(1824.) 
yi » Rogers. Proc. Acad. Philad. VIII. p. 39. 40. 
(1857.) 
5 3 Suffr. Ent. Zeit XIX. p. 399. 40. (1858.) 
Inhabits Missouri. 
Body golden-green, brilliant, punctured: antenn:e and palpi black: labrum pur- 
plish: thorax somewhat inequal; edges bluish: scutel purple, impunetured: elytra 
slightly and irregularly rugose, punetured; suture purple; exterior edge blue: beneath 
violaeeous: tibia black. 
Length more than three-twentieths of an inch. (see. Say. l. c.) 
PHYTODECTA  KIREYy. 
1. PHYTODECTA ARCTICA MANN. 
Oblongo-ovata, convexa, nigra; thorace transverso, lateribus modice 
Nova Acta Reg. Soc. Sc. Ups., IIIe Série. 49 
