Front of head broad and evenly rounded, sides diverging and slightly 

 swelling, occipital angles extending posteriorly with 3 large bristles 

 along margin evenly spaced. Metathorax larger than prothorax, rounded 

 in front widely diverging in rear. Prothorax with anterior margin con- 

 cave. Abdomen rounded and oblong. 



The only published report, besides the original description of this 

 species occurring in the United States is by Peters (1936) who records 

 Eiainus sp. as occurring in Delaware and Virginia on the Eastern Robin, 

 which is most likely this species. 



Ricinus pallidus (Kellogg, 1896) 



Physostomum diffusion pallidian Kellogg, 1896. Proc. Calif. Acad. 



Sci., 6: 519. 

 Type host: Junoo sp. 



Described from 2 females and a young specimen collected in 

 Lawrence, Kansas. The only other records of this species appear to be 

 by Peters (1928) from Ohio and Peters (1936) from Maryland. 



I have examined 2 females from Durham, New Hampshire, (1937), which 

 are Ricinus but which do not correspond to Kellogg 's measurements (cf. 



R. diffusus) . 



Specimens Host Locality Date Collector 



2 ? Junco hyemalis Durham, NH IV-5-1937 J.G.Conklin 



Junco oreganus ( Towns end ) , although not common in New England, 

 occurs casually here in the winter months and is possibly a host for 

 R. pallidus. 



Ricinus serratus (Durrant , 1906) 



Physostomum serratum Durrant, 1906. Ohio Nat., 6: 528, fig. lb. 

 Physostomum olypeatum Mjoberg, 1910. Ark. Zool., 6: 60, figs. 35- 



36, and pi. 2, fig. 1. 

 Type host: Eremophila alpestris (Linnaeus) — Horned Lark. 



Described from a single female collected at Ft. Collins, Colorado, 

 by J. H. Cowen. This is the only published record of this species in 

 the United States, 



Durrant describes the female as 4.7 mm long and 1.3 mm wide, a very 

 large Ricinus. Head .88 mm long, .86 mm wide, lateral margins slightly 

 concave, occipital border broadly concave. Thorax much broader than 

 long. Abdomen with wide marginal bands and with sides slightly swelling 

 at the middle. 



The Horned Lark is a casual winter visitor to New England at best. 

 It is mentioned in all of the checklists of New England birds but it is 

 not often seen and rarely captured. I have only 1 record of Mallophaga 

 being collected from Eremophila alpestris (Linnaeus) in New England: 

 Belchertown, Massachusetts, March 13, 1926, by Dr. E. G. Rowland. A 

 Philopterus sp. was collected from this bird and is now in the Boston 

 Museum of Science collection. 



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