ACRIDIDJ3. 579 



10. ACBIDIUM VITTICEPS. 



Fcem. Fulvum ; vertex flavo pallido late vittatus, anlice depressus 

 hexagonalis; frontis carince interiores nigro varies; pro thorax nigro 

 indeterminate viltatus, villa antica liturisque flaws ; prostcrni spina 

 longiuscula ; femora postica nigro notala ; tibice posticce rufa, spinis 

 albis apice nigris ; alee antica cinerece, corpore vix breviores, maculis 

 plurirnis indeterminatis fuscescente venosis ; alee posticte pallide 

 cinerece, nigro venosce. 



Female. Tawny. Head smooth ; vertex with a broad pale yellow 

 stripe, its fore part depressed and hexagonal ; front with four well-defined 

 keels, which diverge towards the face, the inner pair partly black. Eyes 

 elongate-elliptical. Prothorax scabrous, with a slight dorsal keel, with 

 transverse impressed lines, with an incomplete pale yellow stripe which is 

 most apparent near the fore border, and with some yellow marks on each 

 side ; some slight indications of black stripes ; fore border slightly rounded ; 

 sides nearly straight ; hind border slightly rounded. Prosternal spine 

 moderately stout, rather long. Hind femora a little shorter than the 

 abdomen, longer than the hind tibiae, with some black marks. Hind tibia? 

 red ; spines white, with black tips. Fore wings cinereous, almost as long 

 as the body, with many indistinct spots which are formed by brownish 

 veins. Hind wings pale cinereous ; veins black, pale towards the base and 

 towards the interior border. Length of the body 23 lines; expansion of 

 the fore wings 46 lines. 



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



11. ACEIDIUM SCDTELLABE. 



Fcem. Testaceum, sat yracile ; vertex antice depressus, hexayonalis ; pro- 

 thorax postice rufus, inargine postico valde producto vix angulato ; 

 prosterni spina robusta, subobligua ; tibice posticce rufce ; al& anticce 

 corpore longiores, gutlis plurimis indeterminatis e venulis transversis 

 fusco nebulosis ; alee posticce diaphance, testaceo venosce. 



Female. Testaceous, rather slender. Head smooth; fore part of the 

 vertex depressed, hexagonal; front punctured, with four strongly marked 

 keels which diverge slightly towards the face. Eyes fusiform. Prothorax 

 finely scabrous, with a slight dorsal keel and with the usual four transverse 

 impressed lines; hind part red; fore border and sides slightly rounded ; 

 hind border much elongated, hardly rugulose. Prosternal spine stout, 

 slightly oblique. Hind femora a little longer than the abdomen and than 

 the hind tibiae; hind tibia? and hind tarsi red, spines of the former with 

 black tips. Fore wings rather longer than the body, with several indistinct 

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

 elsewhere reddish or testaceous. Hind wings pellucid; veins testaceous. 

 Length of the body 21 lines ; expansion of the fore wings 45 lines. 



a. Mexico. 



