MONOGRAPHIE DES CHRYSOMÉLIDES DE L'AMÉRIQUE. 331 
2. PHYTODECTA SIMPLEX SUFFR. 
Elongata, subeonvexa, testacea, antennis apice nigricantibus, elytris 
profunde punetato-striatis, tibiis antieis muticis, mediis fortiter calcaratis. 
Long. 2 lin. 
Chrysomela simplex Suffr. Ent. Zeit. XIX. p. 383. 20. b. (1858.) 
Aus Nordamerika, ohne nähere Angabe des Fundorts. Mus. Riehl. 
(sec. Suffrian, l. c.) 
PHYLLODECTA fKIREy. 
1. PHYLLODECTA INTERSTITIALIS MANN. 
Oblonga, viridi-ænea, cærulescenti-micans, nitida; antennarum articulo 
primo apice rufescente; thorace longitudine duplo latiore, antice subito angu- 
stato, lateribus posterius subrectis, in medio remote, ceterum crebrius pun- 
etato, utrimque fovea magna obliqua (an fortuito?) impresso; elytris crebre 
punetatis, punctis versus suturam in strias seriatis. 
Longit. 2 lin, Latit. 3 lin. 
Phyllodecta | Vittelling? Kirby in Richardson. Faun. Bor. Amer. 
IV. n. 216. 289. 
Phratora interstitialis Mann. Bull. de Mose. 1853. p. 259. 251. 
T 5 Suffr. Ent. Zeit. XIX. p. 400. 3. (1858.) 
Habitat ad fl. Kwichpakh, sec. D. Ménétriés. Mus. Acad. Imp. 
Scient. Petrop. 
Phr. Vitelline Linné statura affinis, sed elytrorum tota superficie profunde et 
erebre punetata sine ullo dubio species distincta. (sec. Mannerheim. I. c.) 
PLAGIODERA ER. 
1. PLAGIODERA CONFLUENS  ROGERS. 
Oblong oval, black, head and thorax black, thorax with a wide yellow 
margin, elytra brownish black, finely and sparsely punctured, with four very 
faint oblong ferruginous spots on each elytron, antennæ, legs and under 
surface black. Length. 28. 
Chrysomela confluens Rogers. Proc. Acad. Philad. VII. p. 37. 
30. (1857.) 
" t Suffr. Ent. Zeit. XIX. p. 391. 30. (1858.) 
