Coleopterological Notices, V. 587 



Fidvipenne Say, is not by any means a variety of coquus, but is 

 specifically distinct, Coquus Linn, has the pronotum in the male 

 rather coarsely punctured throughout, except near the base, but in 

 the female very finely extremely densely so; this character may 

 also be common to the other allied species, but cannot be verified 

 at present because of their denser and longer vestitnre. The sexual 

 disparity of armatum in pronotal sculpture is very remarkable. 



T. aiiripenue n. sp. — Parallel, convex, black, the elytra bright aureo- 

 fiilvous except at the basal margin ; pubescence dense, assuming the color of 

 the integuments, recumbent on the elytra where it is dense and arranged 

 obliquely on the stiong corrugations but v^ry inconspicuous in the intervals, 

 erect on the pronotum where it is short, not concealing the surface sculpture. 

 Iltad moderate, densely punctate, the antennal prominences acute; antennae 

 very slender, about one-half longer than the body, basal joint oval, twice 

 as long as wide, three-fifths as long as the third, second slightly longer than 

 wide, four to seven equal, a little shorter than the third, eleventh with the 

 appendage as long as the basal part and feebly bent at apex. Prothorax a 

 little wider than long ; apex slightly wider than the base, the acute and 

 prominent lateral tubercles slightly behind the middle ; disk opaque, feebly 

 and finely 5-tuberculate, the median tubercle larger and polished ; punctures 

 coarse, very dense, abruptly fine and extremely dense near the base, Scutel- 

 lum roughly punctate. Elytra three times as long as wide ; sides parallel, the 

 humeri obtusely prominent; apex conjointly broadly rounded; disk of each 

 with five strong narrow ridges, the fourth joining the fifth before the middle. 

 Legs slender, the posterior much longer, with the tibiae somewhat dilated and 

 compressed. Length 14.0-20.0 mm.; width 3.8-5.7 mm. 



Utah (southwestern); Arizona, 



The three specimens in my cabinet are males and I have not seen 

 the female. This species is somewhat smaller than coquus, but all 

 the species vary enormously in size. 



Among the eleven specimens of coquus in my cabinet there are 

 only, three females ; the elytral corrugations in that species are 

 always much wider and more feeble than m fulvipenne ; the form 

 of the hind tibiae w^ill however distinguish them at once. 



BATYLE Thom. 



B. cylindrella n. sp. — Narrow, cylindrical, polished, bright red 

 throughout, the elytral suture not darker, post-sterna blackish; legs pale, 

 the tarsi black except near base and apex ; antennae rufo-testaceous, dark 

 toward apex especially toward the apices of the joints ; vestiture very sparse, 

 coarse, erect, not very long, pale luteous in color. Head finely, remotely 

 punctate, almost completely impunctate before the antennae, the latter slender, 



