BARIS. 465 
and abruptly bowed from the base; the prosternum somewhat deeply excavate; the 
tibie almost straight; and the fifth ventral segment broadly flattened down the 
middle. 
15. Baris rotundicollis, sp. n. (Tab. XXII. figg. 19, 194, 2.) 
Oblong-ovate, rather broad, very finely alutaceous, wneo-piceous, the legs reddish; the punctures at the sides 
of the prothorax, along the elytral interstices, and on the under surface and legs each bearing a minute 
setiform scale. Head minutely punctate, transversely grooved between the eyes; rostrum strongly 
arcuate, moderately stout, short, finely punctate. Prothorax rather convex, much broader than long, 
rounded at the sides, narrow in front; closely, rather coarsely punctate, except along the smooth median 
line. Scutellum very small, rounded, concave. Elytra a little wider than the prothorax, very gradually 
narrowing from the rounded humeri; narrowly, deeply striate, the stria feebly punctate, the interstices 
broad, flat, 2 and 3 confusedly, the others closely and uniseriately, punctate, the ninth raised towards 
the apex. Beneath closely, the median portion of the first two ventral segments more sparsely and 
finely, punctate. Tibi almost straight. 
Length 32, breadth 14 millim. (2.) 
Hab. Mexico, San Pedro in Coahuila (Palmer). 
One specimen. Smaller and less convex than B. transversa, the upper surface with 
an neous lustre and not so coarsely punctured, the interstitial punctuation on the 
elytra much finer. The prothorax is more rounded at the sides than in the other 
allied Central-American forms. 
16. Baris subrubra, sp. n. (Tab. XXII. figg. 20, 20a, 2.) 
Oblong-ovate, rather convex, shining, nigro-piceous, the elytra, legs, and antenne rufescent ; almost glabrous 
above, the punctures on the under surface and legs each bearing a minute scale. Head sparsely, minutely 
punctate, deeply, transversely grooved between the eyes ; rostrum strongly arcuate, stout, much shorter 
than the prothorax, very finely punctate. Prothorax transverse, rounded at the sides anteriorly ; 
closely, somewhat coarsely punctate, except along the incomplete smooth median line. Scutellum small, 
rounded-subquadrate, shallowly sulcate. Llytra a little wider than the prothorax, very gradually 
narrowing from the rounded humeri; with narrow, deep, feebly punctured striz, the first (sutural) 
becoming deeper from a little below the base, the interstices broad, almost flat, 2 and 3 irregularly bi-, 
the others uni-, seriate-punctate, 9 raised towards the apex. Beneath closely, the abdomen sparsely, 
punctate. Intermediate and posterior tibia almost straight. 
Length 4, breadth 2 millim. (Q.) 
Hab. Mexico (Truqut, in Mus. Brit.). 
One specimen. Not unlike B. deformis, Casey, but larger and more elongate, the 
upper surface more coarsely punctate, the prothorax not sinuate at the sides, the 
elytra rufescent, &c. The reddish colour of the legs (like that of the elytra) is 
probably not due to immaturity, several of the allied N.-American forms resembling 
B. subrubra in this respect. 
17. Baris cavernosa, sp.n. (Tab. XXII. fige. 21, 214, ¢.) 
3. Oblong-ovate, broad, shining, eneous ; almost glabrous above, the punctures on the under surface and 
legs each bearing a small scale. Head sparsely, minutely punctate, deeply, transversely grooved between 
the eyes; rostrum strongly arcuate, stout, much shorter than the prothorax, closely punctate. Prothorax 
BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 5, February 1909. 300 
