262 
Psyche 
[Aug.-Oct. 
faintly impressed within the shoulder, very thickly evenly punc- 
tate, first joint of front and middle tarsi dilated cf . Intermediate 
between the strictly typical forms and the elongate Mexican, like 
Jansoni Jac. 
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Chthoneis rufulum sp. nov. 
Small, entirely rufous— fl a vous, except the eyes, which are 
black and the antennae after the third joint dark brown. 
Type 1 example cf, So. Brazil. Bow. coll. Length 4 mm. 
Head with frontal fovea between the eyes, antennae longer 
than the body, strictly generically typical, i. e. joints 2, 3 very 
small, equal, subsequent joints dilated and elongate, thorax 
convex, transverse, smooth, with a very obsolete lateral fovea, 
elytra smooth, shining, sparsely finely punctulate, very obsoletely 
depressed at the suture below the base. This form is at once 
separated by its size and color. 
Chthoneis boliviensis sp. nov. 
Small, aeneous brown, elytra cyaneous blue, lower face, last 
2 joints of antennae (except extreme tip) sides of the thorax, and 
femora pale yellow. 
Type 4 examples San Augustin, Mapiri 3500 ft. 95, Bow. coll. 
Length mm. 
Head smooth, with usual cross depressions, and fovea, 
antennae elongate, joints 2, 3 very short, equal, remainder elon- 
gate, compressed, vertex shining, almost impunctate, thorax 
shining sparsely punctate, obsoletely depressed on the sides and 
disk, the former narrowly flavous, this color impinging upon the 
base in a fine line, elytra slightly depressed at the scutel, parallel, 
surface very closely strongly punctate and rugose. 
Like marginicollis Jac. but very much smaller. 
Chthoneis rosenbergi sp. nov. 
Medium sized, elongate parallel, lower face and thorax 
r ufous, last 4 joints of antennae and legs flavous, upper head, 
and body below black, elytra dark blue. 
