schaeffer: donaciini of the new world. 69 
anterior tarsi separates the males from any of our other species. The 
females are closely allied to pahnata, but the shape of prothorax is 
different in the two and the general form of pahnata is more elongate, 
the antennal joints narrower and longer, the legs less stout, the inter- 
mediate femora narrower and distinctly clavate and the last ventral 
segment at apex is never prolonged at middle into a more or less distinct 
laminate process. 
The broad median impression of the first ventral segrnent of the 
males is in some specimens very deep and in others very faint and scarcely 
visible. 
The following variety of piscatrix is recognized. 
var. CONGENER Lee. 
Form and size of piscatrix; prothorax more like that of palmata but 
a little wider; antennal joints narrower and more elongate; upper 
surface of prothorax and elytra with a distinct golden tint, at least in 
the eight specimens seen, including the two type specimens, elytra 
smoother. 
Georgia: "Ga." (Leconte coll.). 
Texas: Del Rio, May (Mitchell, Nat. Mus.); Devil's River, July 
(H. A. Wenzel). 
This form is quite distinct and entitled to be recognized as a variety 
and not as a synonym of piscatrix. It looks like certain palmata, but 
it has nearly all the characters of piscatrix including the form of front 
tarsi of the males and the peculiar form of the last abdominal segment 
of the female of that species. 
DONACIA PALMATA OHv. 
Plate V, figs. 2 and 9. 
Elongate, color variable from flavous with or without golden tint 
to metallic green or blue; antennae either entirely dark or pale with the 
apices of the joints more or less black; legs pale, club of femora above 
and often the upper edge of tibiae more or less distinctly dark-metallic; 
underside of body occasionally pale or entirely dark with a feeble metallic 
tint and the last few ventral segments more or less pale. 
Head slightly constricted behind the eyes, closely punctate, punctures 
moderate; median impressed line generally deep and rather broad; 
tubercles feeble; eyes relatively large; antennal joints rather narrow 
and elongate, third much longer than second and generally equal or 
subequal to the fourth. 
