656 Donacia 



Var. b, corpore fupra aut fufco-aneo, aut 

 obfcure vtrefcente. Payk. I. c. var. b. 



Var. c, Thorace elytriique rubro-cupreis. 



Habitat in plahtis aquaticis frequens ; var. 

 c, tamen rarius ocCUrrit* 



Defcr. Proxime praecedenti fimillima & valde 

 affinis, fed dupio minor & ultra; color pagirae fa- 

 perioris multo magis nitidus; puncla vix uiia vaga 

 in bafi elytrorum, & feraora poftica plerumque ob- 

 foJetilfime tamum dentata. Caput & coilum fufco- 

 sent-a, opsca, fubtililfime crebre puncluiata, terue 

 grifeo-pubefcentia profunde carialicuiata; ocu!i femi- 

 g<obofi brunnei Antennae qvoad ftructuram ut in 

 pnonbus, nigrse, arriculo primo fufco-aeneo, Tho- 

 rax qvadratus, vel fatitudioe fere brevicr, fupra pa- 

 rum convexus, fufco-seneus, nitidus, conferriffima 

 pun&stus, in m?dio bMblete canalicuiatus. vScutel- 

 lum fufco virefcens, obfolete puncluiatum, denfe cine- 

 reo-pubefcehs E^trorum forma ut in prioribug 

 omaind, fupra p*rum convexa, fufco-aenea, r.itida,, 

 regulanter punctsto-ftriata, interftitiis fubtiiiiTjme 

 tr^nsy^rfim ftrigofis; juxta calium humeralem pun- 

 6ti pauca vaga, frd nuJa in reiiquis interftitiis; in 

 medio dorfi foveolae qvatuor obfoletae, in qvadran- 

 gulum poiitae, ut in priorious. Corpus totum fub- 

 tus veliere d?nfo cinero-flavefcente. nitidd te&nm. 

 P*de* elongati aenei, femdribus r.it dis, futilifiime 

 puncTjlatis, pofticis pierumqve dente minuto, obfo- 

 ieco, inrerdum vero evidentiori armstis. 



,. Var, b. colore paginae fuperioris obfcuriori 

 iifivrt, sut obfeurius fuico aeneo, aut fufco-virrfcente* 

 In var. r 9 thorax & elytra rubro cuprea, inter- 

 aum rubro aeuea, caeterum prioribus fimiliima- 



& D. fericea: convexa, fupra metallica, va» 

 ticolor, fuotus tenuiusfericem, thorace ob- 



