APHANIPTERA. 
Ins. 267 
APHANIPTERA (SIPHON APTERA). 
[<?/. C. Rothschild (945, 946), Stokes (1062), Wagner (1138).] 
Structure of pygidium of flea, Stokes ( 1062). 
The genera discussed, Typhlopsylla (in sense of Taschenberg), cannot be 
maintained; figures of male copulatory structures; Wagner, pp. 555 
& 556, Horae Soc. ent. Ross. xxxi. 
Pulcx and Ceratophyllus , defined and limited, Wagner, pp. 557 & 575, t. c. 
Ceratophyllus consimilis, p. 562, dubius , p. 563, tesquorum (on Spermophilus 
musicus ), p. 564, mustelce (on Putorius vmgaris), p. 565, lagomys 
(on L. rutilus ), p. 567, uralensis , p. 571, pinna, tus (on Mus sp.), p. 573, 
silantiewi (on Arctomys bobac ), p. 575, Russia, Wagner, t. c., n. spp. 
Ceratopsylla variabilis (on Vesperugo nathusii), Russia, p. 582, with var. 
decimpilata, p. 583, jubata , Crimea, obscurct (on Vesperugo discolor ), 
p. 584, subobscura (on Vesperugo noctula), p. 586, Russia, Wagner, 
t. c., n. spp. 
Ctenopsylla taschenberqi , Russia, p. 577, sibirica , N. Siberia, p. 578, 
Wagner, t. c., n. spp. 
Sarcopsylla penetrans in Africa, Johnston, p. 368, Brit. Centr. Africa. 
Typhlopsylla : spines, etc. described, Wagner, pp. 588 & 589, t. c. 
T. uncinata (on Putorius vulgaris\ p. 590, orientalis and setosa (on Sper- . 
viophilus sp.), p. 591, Russia, Wagner, t. c . ; T. pentacanthus , England, 
Rothschild, p. 55, Ent. Record, 1897 ; T. dasycnemus , England, id. 
t. c., p. 159; T. silvatica , Denmark, Meinert, p. 192, Ent. Meddel. v 
[omitted last year] : n. spp. 
