Hystrichopsylla

Acosta, Roxana & Morrone, Juan J., 2005, A new species of Hystrichopsylla Taschenberg (Siphonaptera: Hystrichopsyllidae) from the Mexican transition zone, Zootaxa 1027 (1), pp. 55-63 : 60-61

Key to Mexican and Guatemalan species of Hystrichopsylla

1. Genal ctenidium with five or six teeth .......................................................................... 2

1’. Genal ctenidium with seven or more teeth.................................................................... 5

2. Pronotal comb with 42 teeth; fossa of spiracle on t 8 tapering caudally and not extending to margin of tergite (only female known) ...................................................... H. kris

2’. Pronotal comb with less than 40 teeth; fossa of spiracle on t 8 cylindrical and extending to margin of tergite.................................................................................................. 3

3. Pronotal comb with 24–28 teeth .......................................................... H. guatemalensis

3’. Pronotal comb with more than 30 teeth ........................................................................ 4 4. Sternum IX tapering apically; movable and fixed process of equal length ... H. orophila

4’. Sternum IX not tapering; movable process exceeding fixed process .............. H. dippiei

5. Sternum IX with eight pairs of spiniform setae; apex of male sternum VIII with tuft of slender bristles ............................................................................................... H. llorentei

5’. Sternum IX with 13 pairs of spiniform setae; male sternum VIII covered with short bristles and margin with long slender bristles ..................................... H. cryptotis n.sp.