THE CANADIAN ENTOMOLOGIST. 55 



D. purpui-ascens^ nov. sp. 



Head flavous, vertex and front tinged with purple, labrum black, 

 antennae fuscous, flavous at base and apex, thorax as long as broad, 

 smooth, convex, impunctate, light piceous purple ; elytra plicate, orange, 

 with three basal spots, a common scutellar, and a humeral, and two trans- 

 verse bands, one before and the other behind the middle dark piceous 

 purple, and the lateral and sutural margins lighter purple, beneath and 

 tibiiie and tarsi light piceous purple, femora flivous. Length, 6 mm. 



Two examples, olive-green label (Pachitea). Peru. 



Antennae three-fourths the length of the body, fuscous, lighter at the 

 base, joint 9 white (lo-ri missing), joints 2 and 3 almost equal in length, 

 4 much longer than the two preceding, the thorax in certain angles shows 

 obsolete depressions where the usual fovese are, sides very lightly sinuate ; 

 elytra moderately dilated to the rear, strongly plicate, thickly and strongly 

 punctured ; neither of the transverse fasciae attain either the margin or 

 suture, the anterior one, however, joins the humeral patch at the side, the 

 sutural purple begins just behind the scutellar spot, the general colour 

 beneath is light piceous-purplish with flavous femora. The purple colour- 

 ing is probably much brighter in fresh specimens ; seems to belong near 

 8-piistulata Baly. 



D. argo^ nov. sp. 



Head black, antenna; black, base of the first and joints 8, 9, 10 and 

 extreme base of 11 pale, thorax yellow, smooth, transverse, depressed, 

 obsoletely trifoveate, scutel black ; elytra nearly parallel, not plicate, 

 punctured, yellow, a basal band and a curved fascia behind ihe middle, 

 cyaneous, $ with a tubercle near the suture in the curved fascia, body 

 below yellow, pectus black, legs yellow, tibise and tarsi black. Length, 

 dy^ mm. 



One c^ , Cali, Columbia, ix, xii, '94 (W. Rosenberg). One o > 2 $ 's, 

 Pischinde', Columbia (Rosenberg). 



The antennae are about three-fourths the length of the body, joint 2 

 short, 3 nearly twice as long, 4 longer than both preceding united ( I ), in 

 the $ joint 3 is relatively a little longer; the thorax is much broader than 

 long, sinuate at the sid;is behind, impunctate, shining, broadly depressed ; 

 the scutel is polished on vex; the punctuation of the elytra is obsolete at 

 the rear, but coarse and confluent anteriorly, the anterior cyaneous f)and 

 occupies about quarter of the length, and except for the extreme inflcxed 

 edge of the elytra is entire, the rear fascia is about half the width of the 



