236 



A. proprinin, Walk., Cat. Dermap. Salt., IV, 621. 



Male. — Ferruginoug, slender, testaceous beneath. Head and pronotum 

 with a testaceous stripe, which is broadest and blackish-bordered on the head, 

 and there extends to the tip of the vertex. Head smooth ; tip of the vertex 

 flat, hexagonal ; front thinly punctured, with four strongly-marked keels, 

 which diverge slightly toward the face. Eyes lurid, elliptical. Antennas 

 testaceous. Pronotum finely scabrous, slightly widening hindward; keel 

 very slight, interrupted by the distinct, transverse-impressed lines ; fore 

 border and sides slightly rounded ; hind border slightly elongated and angu- 

 lar. Prosternal spine slender and slightly acute. Abdomen whitish-testa- 

 ceous, with a narrow, ferruginous band on the hind border of each segment. 

 Hind femora as long as the abdomen, with whitish, angular bands on each 

 side ; hind tibiae a little shorter than the hind femora, their spines white, with 

 black tips. Elytra cinereous, as long as the body ; veins ferruginous. Wings 

 pellucid, pale-yellow toward the base and along the interior border. 



Length of body, 1.2 to 1.25 inches; expansion of elytra, 2.67 to 2.83 

 inches. 



Oajaca (Walker). 



A. pantlicrinum, Walk., Cat. Dermap. Salt., IV, 623. 



Luteous, slender. Head smooth ; tip of the vertex hexagonal, bordered 

 with black; front with six well-defined black-dotted keels, the four inner 

 keels diverging toward the face. Eyes testaceous, elliptical. Pronotum 

 slightly scabrous, irregularly black-dotted, hardly wider hindward ; keel not 

 apparent ; transverse-impressed lines well defined ; fore border and sides 

 almost straight ; hind border much rounded. Prosternal spine slender, acute. 

 Legs pale-green. Femora luteous, black-dotted ; hind femora as long as the 

 abdomen ; four anterior tibiae with black bands ; spines of the hind tibiae 

 with black tips. Wings pellucid ; veins pale-green or pale-testaceous. 

 Elytra a little shorter than the body. 



Length of body, 1.1 inches; expansion, 2 inches. 



Mexico (Walker). 



A. olivaceum, Serv., Hist. Orthop., QQQ. 



Female. — Head and body of an olive-brown, except the abdomen, which 

 is smooth and shining. Head smooth, with a greenish-yellow longitudinal 

 ray in the middle, reaching from the extreme front to the pronotum ; carinae 



