Degeerielta nisus nirus (Giebel, 1866) 



Nirrr.us nisus Giebel, 1866. Z. ges . NatWiss., 28: 364. 

 Type host: Aaoi-piter nisus (Linnaeus). 

 New England host: 

 Accipitev stnatus Vieillot — Sharp-shinned Hawk. 



Inner edge of marginal carina straight or with slight median inden- 

 tation; small area of dorsal thickening immediately below marginal 

 carina; ventral suture does not reach to anterior margin of head. Mar- 

 ginal temporal carinae broad with many indentations. Terga II-III 

 indented medially. Pleural thickening broad with ventral outline 

 convex. 



Measurements: Degeeriella nisus nisus (Giebel, 1866) 

 (from Clay, 1958) 



(Mean) cT 



Head Length .49 



Head Width .36 



Prothorax Width .23 



Pterothorax Width . 36 



Abdomen Length . 99 



Abdomen Width .48 



Total Length 1.72 



Specimens Host Locality Date Collector 



1 slide Accipiter striatus Winchester, NH X-22-1932 L.R.Nelson 



(USNM) 



A subspecies of D. nisus, Degeeriella nisus vagans (Giebel, 1874), 

 is found on the Goshawk, Accipiter gentilis (Linnaeus), and Cooper's 

 Hawk, Accipiter cooperii (Bonaparte). 



It differs from D. nisus in the larger average size in both 

 sexes, the inner edge of the marginal carina, which is usually more in- 

 dented medially, and the narrower and less indented marginal carinae of 

 the temples. 



Measurements: Degeeriella nisus vagans (Giebel, 1874) 

 (from Clay, 1958) 



(Mean) cT 



Head Length .54 



Head Width .42 



Prothorax Width .28 



Pterothorax Width .44 



Abdomen Length 1.11 



Abdomen Width .57 



Total Length 1.94 



100 



