— 132 — 



A. linearis Lee. Proc. Acad. 1859, p. So. Rufo-testaceous, sparsely clothed 

 with whitish pubescence. Tlioiax longer than wide, sides aicuaie, disc coarsely dense- 

 ly punctate, a slight smooih space af middle posteriorly. Elytra coarsely punctured, 

 toe puncmres somewhat liner near the apix, the apices separately emarginate- 

 iruncate, not spinose. Length .40 — 42 inch: 10— 10.5 mm. 



The outer joints of the antennae are distinctly carinate on their flat 

 sides, the third, fourth and lifth joints with a short apical spine. The 

 flying liairs o( the tibiai are long but not very numerous. 

 Occurs at Tejon, California. 



A. protensus, Lee. (Proc. Acad. 1^58, p. 82.) Brownish piceoas, clothed 

 w.th grayish-white pubescence. Thorax longer than wide, scarcely peiceptibly 

 narrower at apex than at base, sitles feebly arcuate, slightly oi)liquely impressed near 

 the base, disc convex, very coarsely and roughly punctate-granu.ate with four d.stinct 

 eievaiions arranged in a quadrangle and a narrow median smooth callosity. Llytra 

 coarsely not closely punctaie, ihe punciures gradually finer toward ihe apex, the 

 apices bispinous (^' or w.th ihe suture above spiniform 9- Length 1.06 (J, 1.20 Q 

 inch. 26.5 — 30 mm. 



The pubescence of this species is nearly as abundant as in Elaph. 

 aiomarium but more regularly placed. Ihe joints three to six of the 

 antennae are distinctly spinous, the spines gradually shorter. The outer 

 joints are distinctly carinate on their flat sides. 

 Occurs m Arizona and northern Sonora. 



A. prolixus, Lee. n. sp. 1873, p. 203. Piceous, moderately densely cloihed with 

 cinereous pubescence with a few longer hairs intermi.\ed. Thorax longer than wide, 

 nearly cylindrical, coarsely and closely punctured, disc moderately convex with two 

 slightly elevated tubercles near the base and a transverse elevated line slightly in front 

 of the middle. Elytra coarsely not closely punctured, the punctures hner posteriorly, 

 the apices bispinous in both sexes. Length 1. 00 inch; 25 mm. 



The outer joints of the antennae are very distinctly carinate, the joints 

 three to six with a short spine at apex. The slight transverse elevated 

 line of the thorax is made more conspicuous by the arrangement of the 

 jiubescence. 



Occurs at Cape San Lucas, Lower California. 

 A. calvatus, n. sp. Brownish piceous, moderately shining, surface with very 

 tine, sparse and inconspicuous pubescence. Head coarsely punctured. Thorax 

 longer than wide, base one-half wider than apex, sides feebly arcuate, disc coarsely 

 and roughly punctured with a tendency in the punctures to become transversely con- 

 fluent. Llytra double the width of apex of thorax, parallel, coarsely and deeply, not 

 closely punctate, the punctures finer near the sides and toward the apex, apices bi- 

 spinous in the emargination between the spines and distinct tooth. Body beneath 

 sparsely punctate. Length 1.16 inch.; 29 mm. 



The outer joints of the antennae are very distinctly carinate on their 

 flat sides, joints three to six distinctly spinous at tip. The legs are feebly 

 pubescent without flying hairs. It is conspicuous among the larger 

 species by the very feeble pubescence o'i the surface. 



One specimen ^. Arizona. 



