2 
Psyche 
[March 
side, deep, wide, more than one half the length of the pro- 
thorax; space between the basal impressions and the sides 
strongly sloping towards the impressions; lateral margin 
narrow, with the two usual setiferous punctures; base im- 
punctate, unmargined, nearly straight; disc very depressed, 
with the median line deeply impressed, elongate, reaching 
the base, not reaching the anterior margin. Elytra oval (7.4 
by 4.4 mm.), strongly convex; shoulders square, each with 
a distinct tooth ; basal margin strong, nearly straight ; striae 
deep, impunctate; interstices strongly convex, base of the 
second with an umbilicate pore, third without dorsal punc- 
tures, sixth and seventh a little raised near the shoulders ; 
apical declivity rather strong. Underside wholly impunctate ; 
prosternum with a moderate depression before the coxae; 
prosternal process not margined at the extremity; metepi- 
sterna very short; abdominal segments strongly sulcate 
across the base; anal segment with a single puncture on each 
side in the $ and two in the 2 . Aedeagus with apical blade 
peculiarly formed (Fig. 1). Anterior tarsi of $ moderately 
dilated. 
Holotype $ from Hansa Humboldt, Sta. Catharina, 
Brazil, in my collection (from E. Reitter) ; allotype $ from 
Nova Teutonia (27° ll'-52° 23'), 3500 m., Brazil (F. Plau- 
mann, 20-X-1948) (Museum of Comparative Zoology, Type 
No. 28,441). 
This new species has, like T. catharinae Tschit., the base 
of the prothorax distinctly narrower than the base of the 
elytra, but the sides of the prothorax are slightly subsinuate 
toward the base and the size is much smaller (11.6 instead 
of 16 mm.) . 
Tichonia paraguayensis, n. sp. 
Purplish violaceous on prothorax and elytra ; head black- 
ish; lower surface black, shiny, a little iridescent; legs 
blackish; antennae and palpi dark rufopiceous. Length 
15.2 mm. ; width 5.7 mm. Head robust and strongly sculp- 
tured; eyes wide and prominent; frontal grooves rather 
narrow, not elongate, reaching only the anterior supraorbital 
puncture; antennae rather robust, exceeding the base of 
