ART. 20 



THE APHID GENUS AMPHOEOPHOEA MASON 



15 



Theobald says in his 1915 paper that the cotypes are deposited in 

 his collection. In his second description of the apterous form (1920) 

 he writes that the cotypes are in the British Museum. 



AMPHOROPHORA CICUTAE Shinji 



Figs. 80-84 

 Amphorophora cicutae Shinji, Can. Ent., vol. 49, 1917, p. 51. 



The type of this species was loaned to Dr. A. C. Baker, of this 

 bureau, who made the following manuscript description: 



''III, 0.8 mm.; IV, 0.736 mm.; V, 0.56 mm.; VI (0.144 mm. + 1.04 

 mm.). 



"The sensoria (15) form an even row along the segment. They 

 are moderate in size; cornicles, 0.736 mm.; flange, 0.08 mm., nar- 

 rowest diameter, 0.048 mm.; widest, 0.096 mm.; cauda, 0.32 mm., 

 the extremity extending about to the tip of the cornicles, which have 

 no reticulations at tip but a few transverse imbrications." 



This is somewhat different from Shinji's description. 



The present location of the type is not known. Essig says in a 

 letter that it must have been taken by Shinji when he left the Uni- 

 versity of California. No other records of the species have been 

 made. 



Host. — Cicutavirosa, var. calif ornica. 



Locality. — University of California campus, Berkeley, Calif. 



Date of collection. — April 20, 1915. 



AMPHOROPHORA CORYLINA (Davidson) 



Figs. 98-100 



Rhopalosiphum corylinum Davidson, Journ. Econ. Ent., vol. 7, 1914, p. 

 134. — Wilson and Vickery, Trans. Wis. Acad. Sci. Arts and Letters, 

 vol. 19, pt. 1, 1918. p. 63.— Swain. Univ. Cal. Publ. Tech. Bulls., vol. 3, 

 No. 1, 1919. p. 81. 



The following description is from specimens on the type slide. 



Alate viviparous female. — Antennae longer than body, slender, 

 faintly imbricated, hairs shorter than width of segments. Antennal 

 measurements as follows: 



