Peters (1936) has reported this species from Georgia and Emerson 

 (1940) reports it from Oklahoma. 



Clay and Hopkins (1960) separate the genus into 4 main groups. 

 The querquedulae group, the only one found in New England, is character- 

 ized by dorsal prothoracic spine-like setae. The querquedulae group 

 can be separated by the character of the chaetotaxy into 2 species, 

 one T. querquedulae being found on Anas and related genera and one T. 

 anserinum on Anser and related genera. T. anserinum has more numerous 

 setae of which proportionally fewer are spine-like and has small setae 

 making up the brushes of the 3rd femora and sternites IV and V being 

 more numerous . 



Specimens Host Locality 



4 9, 20- , 



1 imm. Branta canadensis Bar Harbor, Me. 



1 ? " " Vassalboro, Me. 



1 9 " " Durham, NH 



Date 



IV-10-1938 



X-30-1959 



X-29-1952 



Collector 



A.E.B. 

 R.Nash 

 D.Dupee 



Measurements ; 



2 d (Bar Harbor) 



2 9 (Bar Harbor) 



Syst. Natr., ed. 10: 612. 

 Ins. , 7 : 77 , pi. 4, 



138, pi. 19, 



Trinoton querquedulae (Linnaeus, 1758) 



Pediculus querquedulae Linnaeus, 1758. 

 Ricinus lari De Geer, 1778. Mem. Hist. 



fig. 12. 

 Trinoton pygmaeus Kolenati, 1846. Melet. Ent, 



fig. 5. 

 Type host: Anas areoca Linnaeus — Common Teal. 

 New England hosts: 



Any duck found in New England is a potential host for this species 



of Mallophaga. 



This species can be separated from Trinoton anserinum by the 

 characters given on the previous page. I have collected T. querquedulae 

 from Melanitta perspioillata, Mergus serrator. Anas rubripes, Aix sponsa, 

 Aythya collaris, and have records of its occurring on specimens too 

 numerous to mention. 



RICINIDAE 



Members of this family of Mallophaga can be recognized from those 

 of the other families of the suborder Amblycera by the following 

 characteristics: tarsi of all legs 2 clawed; antennae situated in 

 capsules which open ventrally, the capsules not bulbous and not pro- 

 ducing lateral swellings on the head. Abdomen with lateral contours 

 but slightly broken by notching at the junction of the segments. This 

 family is small and includes only 2 genera found in New England which 

 can be separated by the following key: 



59 



