THE ENTOMOLOGIST 
Vou. XLII. 
BH BRUARY, $1909. [No. 549 
NOTES on toe FIVE-COMBED BAT-FLEAS FORMING 
THE GENUS NYCTERIDOPSYLLA,* OvuprEmans. 
By tHe Hon. N. C. Roruscuiup, M.A., F.L.S., F.E.S. 
(PuatE I.) 
In the December number of the ‘Entomologist’ for 1908, 
p. 281, we described a new species of five-combed bat-flea under 
the name of Nycteridopsylla longiceps, comparing it with another 
British species which we identified at that time as pentactenus, 
Kolenati. Our identification was based on specimens from 
Kolenati’s collection preserved in the Vienna Museum, with 
which the British ones agree fairly well. This identification has 
now proved to be erroneous, and we think therefore that a 
general survey of all the known species of the genus Nycteri- 
dopsylla may be attempted with advantage. 
1. Nycteridopsylla pentactenus, Kol. 
Ceratopsyllus pentactenus, Kol., Parasiten der Chiropteren, 
p. 32, no. 3 (1856, Brunn). 
C. tetractenus, Kol., Parasiten der Chiropteren, p. 82, no. 4 
(1856, Brinn) ; id., Hor. Soc. Ent. Ross. vol. il. p. 39 
(1863). 
Nycteridopsylla pentactena (!), Oudemans, Tijdschrift voor 
Entomologie, Verslag, p. lix (1906) ; Dampf, Schrift. 
Phys.-dkon. Ges. vol. il. p. 42 (1908, Konigsberg). 
Kolenati originally described two species in ‘ Die Parasiten 
der Chiropteren’ under the names of pentactenus and tetractenus, 
which he subsequently united under the latter name in the 
‘ Hore Societatis Entomologice Rossice.’ The description and 
figure are insufficient, but two characters are mentioned which 
refer to this species only. In the ‘ Parasiten der Chiropteren ’ 
Kolenati states, under pentactenus, that the second segment of 
* Nyctertdopsylla, Oudemans, Tijdschrift voor Entomologie, Verslag, 
p. lviii (1906). 
ENTOM.—FEBRUARY, 1909. D 
