30 MISC. PUBLICATION 5 00, U. S. DEPT. OF AGRICULTURE 



The Genus Dasypsyllus Baker 



(Fig. 5, D) 



Dasypsyllus Baker, 1905, U. S. Natl. Mus. Proc. 29: 129. Monotypic. Type, 

 Ceratophyllus perpinnatus Baker. 



Frontal tubercle minute, angulate apically. Forehead with 3 rows of lat- 

 eral setae, none of which is spiniform. Eyes well developed and heavily pig- 

 mented. Labial palpus not reaching to apex of coxa I, 5-segmented. Post- 

 antennal region of head with 3 rows of setae. Pronotal comb with long, dark- 

 brown, approximate, apically angulate spines. Coxa III. without a row or 

 patch of spinelets on inner surface. Last segment of each tarsus with 6 pairs 

 of lateral plantar bristles, the third pair being shifted ventrally and its place 

 taken by a more slender lateral pair. Abdomen with a few apical spines, all 

 situated dorsally. Tergal plate VII without a posterior median process. A 

 single antepygidial bristle, flanked by a pair of microsetae, on each side in 

 both sexes. Female with 1 receptaculum seminis and a pair of short, stout 

 stylets. In male, sternal plate VIII greatly shortened and bearing posteriorly 

 a pair of semihyaline lobes, each with a fimbriated ventral margin ; sternal 

 plate IX with a pair of internal vertical processes, a conspicuous median apo- 

 physis, and a pair of long, setigerous, posterior processes; movable finger of 

 clasper broad, flat, bearing both long setae and pigmented spines. 



Dalla Torre (10, p. 12) in his catalog placed this genus as a 

 synonym of Ceratophyllus Curtis. 



Dasypsyllus gallinulae perpinnatus (Baker) 



(Fig. 5, D) 



Ceratophyllus perpinnatus Baker. 1904, U. S. Natl. Mus. Proc. 27 : 391, pi. 13, 



figs. 1-6. 

 Dasypsyllus perpinnatus (Baker), 1905. U. S. Natl. Mus. Proc. 29: 129. 

 Dasypsyllus gallinulae perpinnatus "Wagner, 1930, Katalog der palaearktischen 



Aphanipteren, p. 14. 



Type host. — Unknown. 



Type locality. — Queen Charlotte Islands. 



Range. — Known only from British Columbia. 



This subspecies was regarded by Baker as a species in his original 

 description, which was based on a single male and accompanied by 

 six detail drawings. It is a medium-sized flea (length of male, 3 

 mm.) of light-brown color. The type variety of gallinulae occurs 

 in Europe. 



The Genus Amphipsylla Wagner 



(Fig. 6, C) 



Amphipsylla Wagner, 1909, Mitt. Kaukasischen Mus. 4 : 196, 201. Type, Amphi- 

 psylla schelkovnikovi Wagner (by subsequent designation). 



Front tubercle vestigial. Forehead with 3 rows of lateral setae, middle row 

 frequently incomplete, and none of the setae in any row spinelike. Eyes small 

 to vestigial. Labial palpus medium in length, usually not reaching apex of 

 coxa I. Postantennal region of head with 3 rows of setae. Pronotal comb with 

 usual long, black, or dark-brown spines. Coxa III without a row or patch 

 of spinelets on inner surface ; tibia III with a comblike row of 3 or 4 shorter 

 outer setae between long middle and long apical bristles; last segment of 

 tarsus III with 5 pairs of lateral plantar bristles, the first pair situated in 

 between the bristles of the second pair. Abdomen with apical spines, nearlv all 

 of which are situated dorsally. Tergal plate VII without posterior median 

 process. Three antepygidial bristles on each side in both sexes. Female with 

 but 1 receptaculum seminis. In male sternal plate VIII broad, not modified; 

 sternal plate IX with internal vertical processes and much modified posterior 

 processes ; movable finger of clasper broad, flat, with 1 or more pigmented spines 

 in addition to a few setae. 



