SOUTH AMERICAN EUMOLPIDA. 235 
$ tibia very different. Sent me by Mr. Blatchley as piceipes, 
but not agreeing with the northern form, and certainly not 
agreeing with Dr. Horn’s remarks, ‘Trans. Am. Ent. Soce.,’ 
vol. xix, p. 227—‘‘ tibia slightly sinuate in the inner edge.” 
It seems to me probable, however, that this is the form described 
by Olivier as piceipes. 
Still another form is indicated in the Blatchley material by 
one 3, two ?, rather more elongate and parallel, with simple 
hind tibia in g. I hesitate to describe it until all the forms can 
be brought together with a larger material. 
Rhabdopterus similis, sp. nov. 
Small, stout. Below with legs dark brown; breast and legs 
tinged with zneous; above entirely greenish, bronzed neous, 
shining ; antenne rufous with the last five joints fuscous. 
Type, 2 g,2 9, Cochabamba, Boliv. (Germ.). 
Length, 4 mm. 
Head thickly and strongly punctate, a little more crowded 
on the epistome, a fairly well-marked transverse groove but no 
longitudinal; labrum square, rufous; thorax transverse, sub- 
angulate at the middle, thickly punctate, more or less crowded 
at sides, punctures finer than the head, sides with a faint median 
depression ; elytra with well-marked, but short, cross depression 
below the shoulder, very finely punctate striate, obsoletely costate 
at the tip and sides; the thoracic and elytral margins are 
narrowly brilliant metallic green, but not particularly noticeable 
on account of the general colour. In general aspect resembles 
apicicornis, Jac., as identified by me, lacking, however, the thoracic 
angulation. 
Rhabdopterus angulicollis, sp. nov. 
Medium sized, stout. Below, with legs, entirely rufous; an- 
tenne rufous, joints 7, 8 and 11 fuscous; head rufous, slightly 
iridiscent in certain lights; thorax and elytra brilliant green bronze, 
dominating a rufous under-colour; thorax transverse, noticeably 
angulate back of the middle and with a strongly-reflexed maazgin. 
Type, ?, Salinas, Beni R., July, 1895, Stuart. 
Length, 4:5 mm. 
Head finely punctulate, with a well-marked frontal fovea ; 
labrum rather deeply notched ; thorax slightly collared in front, 
moderately punctate with mixed punctures, with small smooth 
areas before and behind at the middle, and a slight lateral 
depression in line with the angulation. Elytra with moderate 
cross-depression, the whole surface strongly punctate striate on 
the disc and next the suture, confused at the side, forming trans- 
verse ruge ; intervals subcostate at the apex. This form is allied 
to semifulvws, Jac., and seems to be the largest of the forms with 
