AFRICAN APHIDIDAE — PART II. 



135 



(1893) ; Sanderson, Twelfth Ann. Rept. Del. Agri. Exp. Sts., 1900, p. 207 (1901) ; 

 Sanborn, Kansas Univ. Sci. Bull., 3, no. 8, pp. 251, 252 and 262 (1906) ; Davis, 

 Ann. Ent. Soc. Amer, i, p. 256 (1908) ; Folsom, Bull. 134, 111. Agri. Exp. St., p. 175 

 (1909) ; Davis, Journ. Econ. Ent., iii, p. 419 (1910) ; Gillette, Joum. Econ. Ent., 

 iii, p. 369 (1910) ; Smith, Ann. Rept. N.J. State Mus., 1909, p. 116 (1910) ; Williams, 

 Univ. Studies, x, no. 2, p. 32 (1911) ; Morrison, Fifth Ann. Rept. St. Ent. Ind., 

 1911-1912, p. 216 (1912) ; Davis, U.S. Dept. Agric. Bur. Ent., Tech. Ser. no. 25, 

 pt. ii, p. 40 (1914). 



Alate viviparous female. — Head very pale greenish-ochreous to pale yellowish- 

 green. Eyes red, reticulations pale, somewhat ochreous ; four dusky tubercles 

 arranged as shown in fig. 25 (A), rather inconspicuous, between the bases of the 

 antennae. Two dusky lines in the median area of the head. Antennae with the 



V^-N^j^^^^XStSjEUrp 



Fig. 25. CalU'pterus ononidls, Kalt., alate viviparous $; 



A, antenna ; B, wings ; C, cauda and anal plate ; D, cornicle ; E, lateral 



tubercle of abdomen ; F, side view of cauda ; Gr, body spines. 



two basal segments pale or pale smoky, third ochreous with dusky apex, fourth to 

 sixth dusky. Pronotum of the same colour as head, with some dusky lines. 

 Mesothorax pale, but dull ochreous or greenish (darker in some specimens 

 than in others), rather translucent in appearance. Thoracic shields of the same 

 colour, but darker. Abdomen a clear, bright, pale yellowish green or greenish 

 yellow, with black spots ; a lateral line of seven black spots, one being close to or 

 against the anterior margin of the cornicles. Cauda and the anal plate of the same 

 colour as the abdomen. Cornicles pale, a dusky ring at the apex. Wing insertions 

 pale ; costa smoky, pale at the base ; cubital vein with basal one-third pale, the 

 rest smoky or faintly greenish ; stigma pale smoky. Legs ochreous ; tarsi dusky. 

 Venter pale yellowish-green ; underside of head and thorax sUghtly more yellow. 

 Antennae not as long as the body, of six segments, the first shghtly longer and 

 wider than the second ; the third the longest, with eight to nine oval sensoria, not 

 quite reaching the apex ; fourth and fifth about equal in length, the latter with 

 (C177) d2 



