CLASSIFICATION OF THE ASCALAPH1D JL. 



245 



and probably also villosus, in his description (figuring only Mac- 

 lachlani) of surinamensis. 



The variety in my collection from the Ucayali differs especi- 

 ally in the sharply denned apical, as well as basal, dark portion 

 of the posterior wings of the $ . 



4. C. unicus, Walker. (Ascal. unicus, Walk. Trans. Ent. Soc. Lond. 

 ser. 2, vol. v. p. 195.) Frons fusco-villosus. Antennae rufescentes, 

 nigro-annulatae ; clava nigra. Thorax supra cinereus, utrinque nigro- 

 fuscus. Pedes testacei. Abdomen supra rufescens, infra infuscatum. 

 Alas anticae apicem versus angustatae, hyalinae, ad basin fusco-tinctae ; 

 maculis duabus, quarum una apicalis, altera parva subapicalis, ptero- 

 stigmate, venulisque costalibus, fuscis : posticae elongato-triangulares, 

 peracutae, omnino fuscae, macula hyalina parva ad costae apicem, ex- 

 ceptaj margo analis obliquus, leviter excisus. Long.corp.il'"; exp. 

 alar, antic. 32"', postic. 27"'. 



Hab. Brazil? 



5. C. subiratus, Walker. (Ascal. subiratus, Walk. Cat. Brit. Mus. 

 Neurop. p. 439.) Frons nigro-pervillosus. Antennae mfescentes, 

 nigro-annulatae ; clava ochracea, infra vix infuscata. Thorax supra 

 griseo-ochraceus, utrinque niger ; vitta angustata mediana nigra : 

 infra niger. Pedes picei ; femoribus pallidioribus. Abdomen nigrum. 

 Alae anticae apicem versus paullo angustiores, acutae, hyaliuae, ad 

 basin fusco-suffusae ; pterostigmate nigro : posticae hyalinae, dimidio 

 basali fere, strigisque nonnullis, fuscis ; margo analis leviter exciso- 

 sinuatus. Long. corp. 10"'; exp. alar, antic. 28"', postic. 25"'. 



Hab. Guatemala, Mexico, Honduras, Brazil. 



6. C. surinamensis, Fab. (Ascal. sivrinamensis, F. Ent. Syst, Snppl. 

 p. 20/ (nec and.) Caput fulvo-villosuin. Antennae nigrae ; clava 

 cchracea. (Thorax fusco-pilosus ?) Pedes picei ; tarsorum articulis 

 quatuor basalibus fusco-nigris. Abdomen nigro-fuscum, transverse 

 fulvo-maculatum. Alae paullo latae, subaequales, hyalinae ; pterostig- 

 mate parvo, flavescente : £ margo analis posticarum paullo excisus, 

 macula fusca subquadrata ad angulum analem signatus. Long. corp. 

 11"; exp. alar, antic. 33 ", postic. 30'". 



Hab. Surinam (Fabricius) ; Brazil, without indication of special locality 

 (De Selys's collection^. 



I have seen one $ from De Selys's collection, from which the 

 above diagnosis is drawn up. The colour of the villosity of the 

 head and body is somewhat uncertain, owing to the hairs being 

 matted together by some liquid. 



There is no doubt, in my mind, that this is the true Fabrician 

 species; it is the only one to which the descripiion will apply. 



