U6 



we have no way of deterniiniiig the genitahc structure of true longi- 

 frons we prefer to assume, for the present, that this difference is 

 possibly only a variation within the species. We should hardly expect 

 this, but the difference lies in the length of the right harpe only, so 

 the assumption is reasonable. We have made five slides without 

 finding an intermediate, and therefore figure both forms. 



The unique type of longifrons was taken at Omilteme, Guerrero, 

 Mexico, in July. It is a male, but the abdomen is broken so the 

 form of the genitalia of the species must be decided from topotypical 

 material. Mr. Meyrick compared one of our specimens with the type 

 and pronounced it correctly identified. 



The early stages are unknown. 



Genus Agdistis Huebner 

 Haplotype Ahicita adactyla FIbn. 



Aydislis Huebner, Verz. l.ek. Sdimett. 429, 1826. 



Zeller, Linn. Ent. VI, 321, 1852. 



Meyrick, Trans. Ent. Soc. Lond. 486, 1890. 



Tun, Pter. Brit. 14, 1891. 



Meyrick, Handbook 441, 1895. 



Hofmann, Dcutsch. Pter. 47, 50, 1895. 



Tutt, Ent. Rec. XVH, 35, 1905. 



Meyrick, Gen. Ins. C, 20, 1910. 



Id., Wagner's Lep. Cat. pars 17, 31. 1913. 



Barnes & McDunnough, Check List 151, 1917. 

 AdiUtylus Curtis, Brit. Ent., Lep. H, 471, 1833. Orthotype adactyla. 



Tutt. Ent. Rec. XVII, 35, 1905. Pseudotype bcnncttii Curt. 

 %Agdistcs VVestwood, Gen. Syn. 115, 1840. Orthotype bcnncttii 

 tAdactyla Zeller, Isis X, 771, 1841. 



Erncstia Tutt, Brit. Lep. V, 128, 1906. Orthotype leriiiciisis Mill. 

 Hcrbcrtia Tutt, op. cit. 129. Orthotype tamaricis Zell. 



Front prominent, sniootlily rounded. Ocelli present. Palpi moderate, 

 upturned; second joint with loose vestiture of long scales; third small, ovoid. 

 Primaries entire ; Cu., from near angle of cell, M,^ and Cu^ stalked, M._, to Rg 

 free, discocellulars obsolete (R, lo R^ approximate or connate in other faunae 

 according to Meyrick). Secondaries entire, outer margin sinuate; under sur- 

 face -with pecten of black scales over the usual row of black scales on cubital 

 stem; Cu., from middle of cell, Cu, well before end of cell, discocellulars and 

 one median faintly indicated, M,, strong, one radial and S C near costa, R to 

 apex and S C to costa just before apex. Two anals present, obsolescent. (See 

 pi. XLVIII, fig. 10.) 



