234 



the tips. Elytra rather longer than the body, with several indistinct dots, 

 which are formed by the brown-clouded, transverse sectors ; veins elsewhere 

 reddish or testaceous. Wings pellucid ; veins testaceous. 



Length of body, 1.75 inches; expansion of elytra, 3.75 inches. 



Mexico (Walker). 



A. vicaritim, Walk., Cat. Dermap. Salt., Ill, 580. 



Female. — Testaceous, rather slender. Head smooth, with two yellow 

 streaks each side between the eye and mouth ; front of the vertex flat, hexa- 

 gonal ; front punctured, with four keels, the inner pair most approximate in 

 the middle, the outer pair diverging toward the face. Eyes fusiform. An- 

 tennae tawny. Pronotum finely scabrous, hardly keeled, with the usual four 

 transverse-impressed lines ; fore border and sides very slightly rounded ; 

 hind border elongated, much rounded ; disk partly reddish ; a pale-brownish 

 patch on each side, including a yellow streak. Prosternal spine whitish, 

 rather slender. Hind femora shorter than the abdomen, longer than the hind 

 tibiae ; sjnnes of the latter whitish, with black tips. Elytra cinereous, longer 

 tlian the body, with numerous cinereous, black-veined spots ; veins elsewhere 

 l)ale. Wings pellucid ; veins black, pale toward the base. 



Length of body, L75 to 1.9 inches; expansion of elytra, 4 to 4.2 inches. 



Orizaba (Walker). 



. Var. /?. — Head with a ferruginous, lanceolate streak from each eye to 

 the mouth. Pronotum with four piceous, slender, parallel, abbreviated 

 lines. 



Oajaca (Walker). 



A. streniiin. Walk., Cat. Dermap. Salt., Ill, 580. 



Female. — Testaceous, rather stout. Head smooth ; front of the vertex 

 flat, hexagonal ; front with four well-defined keels, the inner pair hardly 

 diverging, the outer pair much diverging toward the face. Eyes tawny, 

 elongate-elliptical. Antennae tawny. Pronotum finely scabrous, with a dis- 

 tinct dorsal keel, and with transverse-impressed lines ; fore border slightly 

 rounded ; sides nearly straight ; hind border rounded. Prosternal spine 

 stout. Hind femora stout, as long as the abdomen, a little longer than the 

 hind tibiae, the latter reddish ; spines black at tlie tips. Elytra cinereous, 

 very nearly as long as the body ; veins tawny. Wings pellucid ; veins black, 

 pale toward the base and toward the interior border. 



