J05 



adjoining the suture ; base elevated ; margin of the ventral segments of 

 the abdomen of a tine bright, the anus of a deeper orange ; legs 

 testaceous. 



A''ery near D. fiiiviprs, but the sculpture of the prothora.x, the 

 impressions of the elytra, and the colour of the underside of the al)domen 

 are different. It differs from D. discolor in having the prothorax much 

 more thinly punctured, the anterior tubercles, which in that species are 

 near obsolete, more prominent, and the scutellum much smaller. 



[Named /?. A7r/>'j7 by Lacordairc.] 



303. DoNAciA r.MARGiXATA A»/y'.-- Length of body 3-3 lines. 

 'I'aken with the precedmg. 



[225.] Body black-blue, clothed underneath with pile, in certain 

 lights, glittering like silver. Antennae black ; tubercles of the prothorax 

 prominent ; elytra with an im])ression near the suture ; last dorsal segment 

 of the abdomen emarginate ; thighs very thick, bronzed, posterior one 

 with a stout tooth. 



This species comes very near D. sericca^ but it is sufficiently 

 distinguished by its deeply notched podex, and the silver pile that clothes 

 its body underneath, which in that species has a golden lustre. 



['I'aken in Canada and at Lake Superior,] 



304. DoNAciA PROXLMA Kirby. — Length of body 5 lines. Taken 

 in Canada by 1 )r. Bigsby. 



IJodv a little flattened, covered underneath with a dense coat o< 

 glittering silver pile resembling satin. Head a little bronzed, channelled 

 between the eyes, minutely punctured ; palpi testaceous; antennae entirely 

 black ; prothorax in the disk dark violet and channelled, sides bron/.cd 

 and impressed ; anterior tubercles not prominent ; scutellum l^ronzed ; 

 elytra nearly black with a slight tint of violet, punctures green-gilt, inter- 

 stices of the rows not wrinkled ; an anterior im]>ression near ^he suture , 

 rounded at the apex ; posterior legs long, with thighs somewhat curved, 

 attenuated at the base, armed at the apex with two teeth placed 

 consecutively, the nrst long, slender, and acute ; the last wide, short, and 

 denticulated |>osteriorly. 



This species is nearly related to D. crassipa Fab., but the antennae 

 and the legs are entirely black, the teeth on the i)osterior thighs are noi 

 equal. 



