Vol. xxiii] ENTOMOLOGICAL NEWS. 359 



The Mallophagan Genus Heterodoxus Le Seue'f 



and Bullen. 



By JOHN HOWARD PAINE, Stanford University, California. 



The genus Heterodoxus was founded in 1902 by S. A. Le 

 Souef and H. Bullen (f) for a Mallophagous parasite from 

 the kangaroo. The authors say : 



"This insect . is interesting on account of its 



being only the second two-clawed parasite of the family 

 Liotheidae which has been found on a mammal. 



The insect under consideration 



closely resembles the sub-genus Menopon, but as that sub-genus 

 has been regarded by former writers as being exclusively con 

 fined to birds, in order that there may be no confusion we have 

 determined to found a new genus, Heterodoxus, for it." 



The authors fail to point out characters which would sep- 

 arate, structurally, Heterodoxus from certain species of 

 Menopon, several of the latter genus having been described 

 from mammals ($) showing that the belief that two-clawed 

 Mallophaga are strictly confined to birds is riot founded on 

 fact. 



Specimens of Mallophaga taken from a dog in Berkeley. 

 Cal., were sent to this laboratory by Professor W. B. Herms, of 

 the University of California. They resemble closely Le Souef 

 & Bullen's Heterodoxus macropus, specimens of which, sent 

 to this laboratory by Mr. Le Souef, are at hand. Upon exam- 

 ination of the two lots, characters were at once noted that 

 seem to separate them from all other genera of Mallophaga 



I offer the following, therefore, as an account of the struc- 

 tural characters distinguishing this genus, which so far con- 

 tains but the two species here mentioned. 



(t) Le Souef & Bullen : Description of a Mallophagous Parasite from 

 the Kangaroo. VICTORIAN NATURALIST, Vol. XVIII, No. 10, p. 159, 

 Feb. 6, 1902. 



(J) Kellogg & Paine: Mallophaga from Birds and Mammals. 

 ENT. NEWS, Vol. XXI, pp. 459-463, 1910. 



