578 CATALOGUE OF 



6. ACRIDIUM aUBIGlNOSUM. 



rubigiiiosum, Harris, MSS. Scudder, Journ. Bust-. Soc, Nut. Hist. 1862, 

 467. 



United States. 



7. ACRIDIUM OLIVACEUM. 



olivaceuui, Serv. Hist. Orth. Q6. 



North America. Cuba. •• 



Mexico. 



8. ACRIDIUM TOJLTECUM. 



Toltecuin, Sauss. Rev. Zool. 1861, 163. 



The nearly contip^uous eyes and the narrower protbi)rax in proportion 

 to the head distinguish this species from ihe Mexican Aoridia here 

 described. 



Mexico. 



9. ACRIDIUM PICEIFROXS. 



Mas. Luteum ; caput et prothorax vittis duabus ferritgineis nigro 

 marginaiis ; caput strigis duahus laferalibus nigricantibus lunceolati'i, 

 verlice anlico depresso subhcxagonali, froiite facieque piceis ; pro- 

 thorax plagis duabus inagnis nigricantibus luleo unimaculati^, 

 margine postico producto rottindato ; prosterni spina pallideflava, sat 

 gracilis; pedes rufi, spinis albis apice nigris ; alee antica cinerea, 

 corpore longlores,maculis plurimis obscurioribus nigro-venosis ; alw 

 posticcB patlide cinerece, nigro venosm. 



Male, Luieons. Head and prothorax with two ferrufjinous black- 

 bordered stripes. Head smooth; fore part of the vertex depressed, sub- 

 hexapjonal ; a blackish lanceolate streak extending; from each eye to the 

 mouth ; front and face mostly piceous, thinly punctureil ;j front with four 

 well-defined keels, the inner j)air most approximate in the middle, the 

 outer pair diverging towards the face. Eyes elliptical. Prothorax finely 

 scabrous, with an extremely slight dorsal keel and with the usual four 

 transverse impressed lines; a lar^e blackish patch on each side including 

 an irregular spot of the ground hue; fore border and sides slightly 

 rounded ; hind border elongated, rounded. Prosterual spine pale yellow, 

 rather slender. Legs red. Hind femora as long as the abdomen, longer 

 than the hind tibiop ; spines of the latter white, with black tips. Fore wings 

 cinereous, longer than the body, with many darker black-veined spots ; 

 veins elsewhere whitish. Hind wings pale cinereous ; veins black. Length 

 of the body 22 lines ; expansion of the fore wings 48 lines. 



a. Orizaba. From M. Salle's collection. 



