80 
Psyche 
[June 
probably closer to Tachys platyderus Bates, and its allies, 
of the Amazonian region, but the type of elytral striation 
combined with the barely sinuate sides of the prothorax 
apparently distinguish it from all of them. 
In coining the name cubax I am following the example 
of Leconte, who made a habit of using two-syllable names 
ending in ax for species of this genus. 
31. Tachys (s, s.) paulax n. sp. 
Rather broad, not strongly depressed; rufo-testaceous 
with slight opalescent lustre. Characters in general the 
same as in the preceding species except that the sides of 
the prothorax are slightly more sinuate before the base, 
the median line of the prothorax is not continued behind 
the posterior transverse impression, the first joint of the 
male front tarsus is much less dilated, and the size is smaller. 
Length just under 2 mm. 
Holotype $ (United States National Museum) and 1 $ 
paratype (Museum of Comparative Zoology no. 19501) 
from Cayamas, Sta-Clara, Cuba, March 2, E. A. Schwarz. 
32. Tachys (s. s.) albipes Lee. 
Tachys (s. s.) abruptus n. sp. 
Broad, somewhat depressed ; rather shining rufo-castane- 
ous with slight iridescence, appendages paler. Head with 
abruptly prominent eyes which form right angles with the 
sides of the head behind them (when seen from a line per- 
pendicular to the front) ; antennae with middle joints less 
than twice as long as wide. Prothorax by measurement 
just over one and a half times as wide as long; sides barely 
sinuate before basal angles, which are obtuse but distinct; 
disk with usual impressed lines. Elytra broadly oval, each 
with about three inner striae more or less distinct and one 
or two outer ones faintly indicated; striae not distinctly 
punctulate; anterior dorsal puncture about on fourth stria 
a third from base, posterior puncture within recurved tip 
of apical striole. Male with two basal joints of each front 
tarsus rather widely dilated. Length just over 2% mm. 
