Homoptera of Cninherry Lake Region 39 



there has been a fairly distinct separation of the form from the 

 common stock. Cranberry Lake and Barber Point, July and Aug., 

 1920. Wanakena, Aug. 'l2, 1920. 



Platymetopius caprescens Osborn. 



Found in open grass covered places, usually the drier spots. 

 Wanakena (Plains), Aug. 3, 1920. 



Platymetopius magdalensis Provancher. 



Found in boggy places, especially in the blueberry association. 

 Cranberry Lake, Aug. 10, 11, 1920. Wanakena, Aug. 12, 1920. 



Deltocephalus productus (Walker). 



The food plant of this species must be the grass occurring on 

 the high ridges, as the species has been tai^en only in such locations 

 and along the plains where similar habitat occurs. It is very 

 rare, few specimens having been taken, but very likely if its 

 particular food plant were known a larger number could be 

 secured. Cranberry Lake and Barber Point, Aug. 5, 1920. Plains, 

 Aug. 3, 1920. (May be detector S. & D.) 



Deltocephalus defector Sanders and DeLong. 



Taken in company with D. productus on grasses growing on 

 rather high ridges. Barber Point, Aug. 5, 1920. Plains, Aug. 3, 

 1920. 



Deltocephalus configuratus Uhler. 



An abundant species in grasses and widely distributed through 

 the northern U. S. and Canada. Cranberry Lake and Barber 

 Point, Aug. 1, 1917. Wanakena, Aug. 1-7, 1917: Aug. 12, 1920. 

 Plains, Aug. 3, 1920. Ranger School, July 15, 1920. 



Deltocephalus acus Sanders and DeLong. 

 Barber Point, Aug. 9, 1920. Plains, Aug. 3, 1920. 



Deltocephalus ocellaris (Fallen). 



This form which appears to be related to Deltocephalus sayi 

 has been taken on grasses, on " tote roads " and on the plains. 

 It differs from D. sayi in being much broader, the head shorter 

 and wader and especially by the ivory-yellow or whitish mai^kings 

 on the clavus. Cranberry Lake, Barber Point, July 13, 1920. 

 Wanakena and Plains, Aug. 3, 1920. 



Deltocephalus sayi (Fitch). 



This species is common in both ojien grass land and shaded 

 grassy patches of forest. It is parasitized by Dryinids which 

 doiubtlass serve as a considerable check to the multiplication of the 

 species. Cranberry Lake, July 6 and Auc. 5, 1919; July 2-15, 

 1920. Wanakena, July 15 ; Aug. 12, 1920 ; Aug. 1-7, 1917. Grasse 

 River, July 22, 1920.' Plains, Aug. 3, 1920. 



