August, '10] GILLETTE : APHIDIDAE 367 



I 



PLANT LOUSE NOTES, FAMILY APHIDIDAE 

 (Continued), Plate 24 



By C. P. Gillette 



SUBFAMILY APHIDINAE^ 



CJiaitophorus betulce Buckt. (?). Figs. 1, 2a, 3. 



Buckton's description of this species was from fall apterous forms 

 only and does not characterize very correctly the summer form of the 

 louse that I am referring to this name. I believe it is the only Chai- 

 topJiorus that has been referred to the birch. This species was found 

 very abundant on the leaves of Betula alha at Portland, Lansing, 

 Albany, Geneva and Denver. 



This louse is almost a Myzocallis having very little hair on the 

 antennae and having cylindrical or somewhat constricted cornicles, 

 without flange, that are rather longer than the transverse diameter. 

 In other respects it is plainly CJiaitophonis. The cauda is very 

 small, slightly knobbed, the anal plate hardly bilobed, the body short 

 and stout, the young do not have capitate hairs, and the apterous 

 viviparge have a row of sensoria on third joint of antenna, a very un- 

 usual occurrence. 



In arranging the following species belonging to the tribe Callip- 

 terini, I have endeavored to place them in the genera that would be 

 indicated by the type species desigTiated in Mr. Wilson's "List of 

 Genera," etc. Vol. XXI, p. 147, of Entomological News. 



Chromuphis jitglandicola (Kalt), Fig. 4. Five to seven oval sen- 

 soria distributed along entire length of third joint, and about equi- 

 distant. Often two large sensoria on sixth joint. Legs pale with a 

 conspicuous black spot a little before the distal ends of the hind 

 femora. Koch re-deseribed this species under the same name. 



On Juglans regia, "Washington, D. C, and Dundee, Ore. At Dun- 

 dee leaves were very sticky with the honey dew, but most of the lice 

 had disappeared. 



Eucallipterus tilice (Linn.), Fig. 5. Taken at Lansing, Detroit 

 and Geneva from the under side of the leaves of basswood, Tilia 

 a/mericana. Common, but nowhere seen abundant. 



Monellia caryce (Monell), Fig. 6. Specimens taken from hickory, 

 Carya alba, at Portland and Detroit, and from walnut, Juglans 

 nigra, at Fort Lee. 



* Should have been inserted before Melanoxantherium on page 385, Vol. 2. 



