Szekessy Vilmos (szerk.): A Magyar Természettudományi Múzeum évkönyve 59. (Budapest 1967)

Smit, F. G. A. M. ; Szabó, I.: The distribution of subspecies of Ctenophthalmus agyrtes in Hungary (Siphonaptera: Hystrichopsyllidae)

In order to facilitate the determination of male specimens of C. agyrtes, we append an illustrated key to the five subspecies dealt with above : 1. Ventral lobe of fixed process of clasper (Fig. 5, v.l.) at most a little wider than apex of distal arm of sternum IX (Fig. 5, d.a.st. IX) and apically not markedly concave (Figs. 5, 6) 2 — This lobe distinctly broader than apex of sternum IX and with a long concave apical margin (Figs. 7 — 9) 3 2. Ventral lobe of fixed process (Fig. 6) strongly obtuse, its ventro-posterior angle not or hardly slanting; sinus between this lobe and the dorsal one often relatively small; apex of sternum IX (Fig. 6) usually with a small dorso-apical notch and a rounded posterior margin; aedeagal lamella (Fig. 11) very broad, distance between ventral part Fig. 9. Clasper and sternum IX of Ctenophthalmus agyrtes eurous (holotype). Fig. 10. Outline of aedeagus of C. a. eurous (holotype). Figs. 11—14. Aedeagal lamella of: 11. C. a. bosniens (from Kisbalaton) ; 12. C. a. agyrtes (from Eisenerz, Austria) ; 13. C. a. peusianus (from DobSiná, Czechoslovakia); 14. C. a. kleinschmidtianus (from Kiev, U. S. S. R.)