Horn.] 554 [April 19, 
plications ; declivity oblique, flat, very finely and sparsely punctate, and 
limited by an elevated ridge, which with the apical margin includes rather 
more than three-fourths of a cirele. Length .36-.40 inch; 9-10 mm. 
This species is distinct from all the others by its elytral sculpture. 
Occurs in Texas. 
P. confertus Lec. New Species, 1866, p. 102; cneisu Lec. (Hro- 
pioides) Trans. Am. Ent. Soc., 1868, p. 64. 
Chestnut brown, feebly shining, sparsely pubescent. Head and thorax 
moderately densely granulate. Elytra moderately densely punctate, be- 
coming granulate at the sides and apex, deglivity oblique, not flattened nor 
margined. Length .30-—.46 inch; 7.5-11.5 mm. 
Male. Apices of elytra separately emarginate, and with a sutural and 
external angulation. 
Female. Apices of elytra entire. 
The suppression of Hzopioides into Polycaon follows from the course 
adopted in Sinoxylon where species are recognized with ten-and nine- 
jointed antenn. In all other respects the two genera fully agree. 
Occurs in California where it is said to depredate on grape vines. 
PSOA Hbst. 
Acrepis Lec. Ann. Lyc., V, p. 213. 
Head free, labrum small, indistinct. Antennze ten jointed, terminated 
by a loose, three-jointed club; first joint stout, obconical, second shorter, 
oval, 3-7 subequal, longer and more slender than the second, the fourth 
being a little longer than the others, eighth oboval, ninth shorter, tenth 
oval, a little longer than the ninth. Anterior cox very narrowly separated 
by a short prosternum. Tarsi slender, the first joint not distinct. 
At the base of the first joint of the tarsus a faint trace exists of the point 
of union between tlie true first joint, and that which appears to be first, but 
which is really the same as the long second joint of Polycaon. ‘There is 
quite a distinct onychium in our species, although Lacordaire says there is 
none in the species which were before him. 
The genus Acrepis was founded on a specimen captured by Dr. LeConte, 
in California, and which was subsequently lost at sea with other types, while 
on the way to Europe for the examination of Lacordaire. In 1868 another 
species was found, but the specimen was not in the most desirable state for 
examination, consequently the best was made of the specimen before me 
and the genus retained as distinct. The material now at my command is 
all that could be desired, and indicates that Acrepis should be suppressed 
into Psoa. 
Our species are two in number, of one of them we have yet no example, 
the only evidence of its existence being the description, and the memory 
which Dr. LeConte retains of his type. For the latter I can only repro- 
duce his description. 
