96 THE CANADIAN ENTOMOLOGIST. 



This species is close to iiigrolimbata Jac; one of my two examples 

 being so labelled by Jacoby, but it is abundantly distinct, the lateral vitta 

 does not attain the suture, there is no narrow cross basal vitta joining the 

 two lateral stripes, and the sutural mirk is much shorter, also the legs are 

 entirely flavous, the punctuation and plication is the same ; one example 

 has the discal stripe interrupted at the middle. 



D. bakeri, nov. sp. 



Head yellow, labrum piceous, antennae more than one-half length of 

 body, black, joints 1-3 flavous, 9-10 pallid; thorax wider than long, 

 yellow, convex, shining, scutel yellow, elytra yellow, plicate, thickly and 

 rather coarsely punctured ; body below and legs yellow, pectus, tibiae and 

 tarsi black. Length, 6-6}^ nim. 



Twelve examples, Para, Brazil (C. F. Baker). 



Seems to be near asigrtaia Baly (which I have not seen), but that 

 species is said to have the elytra ?iot plicate, the reverse of bakeri. The 

 joint 2 of the antennae is short, 3 not one-half longer, 4 slightly longer than 

 the two preceding, the three lower joints are more or less tinged with 

 piceous, and the base of 1 1 is pale ; some examples show an obsolete 

 fovea on the thorax and about two or three obsolete longitudinal sulcations 

 on the disk of the elytra. 



D. chacoensis, nov. sp. 



Head, thorax, scutel and elytra dull blue-black ; antennae prasinous, 

 with last four joints flavous ; the thorax smooth, depressed and semi- 

 shining, bifoveate, with a few fine punctures at the sides ; elytra with about 

 nine elevated costse, vague at base and apex, the whole surface, including 

 the cosise, punctured ; anug and last segment of abdomen rufous ; body 

 below black, abdominal segments fringed with golden pubescence, sides of 

 the breast clothed with golden-sanguineous hair, feet prasinous, tibiae and 

 tarsi dark black-green. Length, 8^ mm. 



Two examples, Chaco, Bolivia. 



Should be placed in § 5, Baly's paper. Joints 2-3 of the antennae are 

 very short and equal, the latter being more obconic {S), 4 twice as long 

 as both preceding {^), joint 3 in $ is one-half longer than 2, and 4 a 

 little longer than the preceding two; the eighth joint is pale flavous and 

 the last three sanguineous ; the thorax is about square, with a dull smooth 

 finish, with fine scattered punctures ; the costate elytra and red anus at 

 once distinguish this form from anything else, the nearest, perhaps^ being 



