CLASSiriCATTON OF THE ASCALAPHIDiE. 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 defined apical, as well as basal, dark portion 

 of the posterior wings of the 5 . 



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

 ser. 2, vol. v. p. 1.95.) Frons fusco-villosus. Antennae rufescentes, 

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

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

 Alae anticcE apicein versus angustatae, hyalinse, ad basin fusco-tinctsc ; 

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

 stigmate, venulisque costalibus, fuscis : posticac elongato-triaugulares, 

 peracutjE, omnino fuscse, macula liyalina parva ad costse apicem, ex- 

 ceptaj margo analis obliquus, leviter excisus. Long. corp. 11'"; exp. 

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



Hab. Brazil? 



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

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

 nigro-annulatse ; 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, acutse, hyalinse, ad 

 basin fusco-suffusae ; pterostigraate nigro : posticae hyaliiiae, dimidio 

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

 sinuatus. Long. corp. 10'"; exp. alar, antic. 28'", postic. 26'". 

 Hab. Guatemala, Mexico, Honduras, Brazil. 



6. C. SURINAMENSIS, Fab. (Ascal. surinamensis, F. Ent. Syst, Suppl. 

 p. 207 {nee auct.) Caput fulvo-villosum. Antennae nigraej clava 

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

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

 fulvo-maculatum. Alae paullo latac, subacquales, li3alinae ; pterostig- 

 raate parvo, flavescente : 5 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 



(Z)e 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 tlie hairs beiug 

 matted together by some liquid. 



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

 species ; il is the only one to which the description will apply, 



