August, '10] GILLETTE: APHIDIDAB 371 



St. Louis, Missouri. We have taken the apterous viviparse of what 

 seems to be this species in Colorado at Fort Collins (foothills), and 

 at Manitou upon leaves of the mountain birch, Betula fontinalis. 

 See Fig. 19 for characters of antenna. 



Euceraphis betulce (Koch), Fig. 20. This peculiar species, with 

 all parts of body, legs and antennae covered with a delicate waxy 

 secretion resembling wool, was a common species on the white birch. 

 Specimens were taken at Lansing, Portland, Detroit, Geneva and 

 Denver. The writer also took two males and oviparous females at 

 Manitou, Colorado, October 20, 1908, on the native birch, Betula 

 fontinalis. 



EucerapJds sp.. Fig. 21. A somewhat allied but plainly distinct 

 woolly species of this genus was taken on Alnus oregonia, at Port- 

 land, Ore., August 20, 1909. The species was common but sporadic 

 in habit. The antenna is extremely long, being more than twice the 

 length of the long, slender body. We have the same species from 

 the foothills near Fort Collins. See Fig. 21. 



DrepanapJiis monelli (Davis), Figs. 22, 23. A species with a stout 

 pair of dorsal spines united for a considerable distance in the basal 

 portion, and with antennal spur as long as joints 4, 5 and 6 together. 

 On under side of leaves of horse chestnut, JEsculus glabra, at Wash- 

 ington, D. C, abundant. 



This is the most remarkable filamentous antenna that I remember 

 to have seen in the Aphidid<B. 



Plate 24 — Anteuu^e of Callipterini, all alate except figures 2 and 15. — 1 and 2 

 antennae of alate and apterous viviparae, and 3, cauda and anal plate of 

 Chaitophoriis betulce; 4, Chromaphis juglandicola ; 5, Eucallipterus tilice; 6, 

 Monellia canjw; 7, Monellia marginella, ; 8, Monelila macuIeUa; 9, antennae, 

 10, anal plate of Myzocallis bella; 11, MyzocaUis walshii; 12, Myzocallls ascle- 

 piadis; 13, CalapMs castanece; 14, alate; 15, apterous Myzocallis trifolii; 16, 

 Myzocallis ulmifolii; 17, antennae, 18, cornicle, Myzocallis nigra; 19, Calor 

 phis betulcecolens; 20, Euceraphis betulie; 21, Euceraphis sp.; 22, Drepanaphis 

 sp.; 23, cornicle of preceding; 24, Myzocallis sp. 



Miss M. A. Palmer, Delineator. 



