240 MALLOPHAGA. 



resembles A^. pulicaris Nitzsch, and A'^. bruneri Carriker, but can be 

 distinguished at once by the broad, flatly rounded forehead, a character 

 which suggested the name. A number of specimens, male and female, 

 were taken from the bank swallow, Riparia rfparia (L.). 



Menopon loomisii Kellogg. — Four specimens of this species were 

 obtained from the wood duck, Aix sponsa (L.). They agree perfectly 

 with the specimens first taken by Kellogg from Oidemia deglandi Bonap. 



Menopon praecursor Kellogg. — Three specimens, one male and two 

 females, were taken on the flicker, Colaptes auratus luteus (Bangs). The 

 species was first described from Ceniurus uropygialis by Kellogg, and 

 Carriker states that he took a variety of this species (M. praecursor 

 meridionale) from Ceniurus hoffmanni from Costa Rica. This is the 

 first record of it on the flicker. 



Menopon hirsutum Carriker. — A single female taken from the downy 

 woodpecker, Dryobates pubescens medianus (Swains.). The description 

 and figure were prepared by Mr. Carriker for previous publication 

 (1910), as in the case of the other new species. Carriker states that it 

 is very different from any species of Menopon heretofore described from 

 the woodpeckers, and seems to have no near relative. 



Menopon mesoleucum americanum Kellogg. — A large number of 

 specimens of this common crow parasite were. taken from the crow, 

 Corvus brachyrhynchus (Brehm.). This variety of M. mesoleucum was 

 first described from the same host, and the species has been found on 

 other species of Corvus in Europe. The striking color markings make 

 it easy to recognize, as it does not resemble closely any nearly related 

 form. 



Menopon sp (?). — Several immature specimens of a Menopon were 

 found on the towhee, Pipilo erythrophthalmus (L.), and on the yellow- 

 billed cuckoo, Coccyzus americanus (L.). They could not be satis- 

 factorily identified. 



List of Hosts with Parasites. 



In this list of hosts with parasites the hosts have been arranged in 

 accordance with the check list of the American Ornithologist's Union. 

 Larus argentatus (Pontoppidan). 



Docophorus lari Denny. 

 Anas rubripes (Brewster). 



Docophorus icterodes Nitzsch. 



Trinoton luridum Nitzsch. 



Trinoton lituratum Nitzsch. 

 Aix sponsa (L.). 



Docophorus icterodes Nitzsch. 



