THE CANADIAN ENTOMOLOGIST. 59 



TWO NEW GENERA AND SEVEN NEW SPECIES OF THE 



FAMILY APHIDID.^. 



BY H. F. WILSON, OREGON AGRICULTURAL COLLEGE. 



AviphoropJiora howardii^ n. sp. 



This species is dedicated to Dr. L. O. Howard, Chief of the U. S. 

 Eureau of Entomology, who has in the past two years extended me many 

 favours whereby I have been able to carry on my aphid studies with much 

 benefit to myself. 



Alate viviparous female. — General colour light brown; antennae, 

 head, thorax and legs black. Abdomen light brown, robust, and with a 

 row of dusky transverse dorsally placed spots. Wings long, broad, and 

 with the cubitus twice forked. Nectaries about one-fourth the length of 

 the body, vasiform. Cauda ensiform, one-half the length of the nectaries; 

 anal plate rounded ; tip of abdomen and cauda with short bristles. 



Antenna with six segments and placed on prominent antennal tuber- 

 cles. Spur of sixth longer than the third segment, and about five times as 

 Jong as the sixth. 



Measurements. — Length of body, 1.9 mm.; width, 9 mm.; length of 

 antennae by segments, I, .10 mm.; II, .05 mm.; Ill, .45 mm.; IV, .3 mm.; 

 V, .33 mm.; VI, ,15 mm.; spur of sixth, .7 mm.; total length, 2.98 mm.; 

 length of wing, 3 mm.; total expanse, 6.5 mm.; nectaries, .41 mm.; 

 Cauda, .23 mm. 



Apterous viviparous female.- -Qitw^xdX colour light brown, antennae 

 slightly longer than the body, and placed on more or less prominent 

 tubercles ; colour darker brown. Abdomen robust, each side with seven 

 or eight dorsally placed black spots. Nectaries about one-fourth the 

 length of the body and strongly vasiform ; cauda ensiform. 



Measurements. — Length of body, 1.75 mm.; width, .85 mm. Length 

 of antennae by segments, I, .10 mm ; II, .05 mm.; HI, .4 mm.; IV, .29 

 mm.; V, .32 mm.; VI. .12 mm.; spur of sixth segment, .68 mm.; nectaries, 

 ,46 mm.; cauda, .22 mm. 



This species was fairly abundant throughout the summer on the heads 

 of Panicularia nervata among streams and in swampy ground about 

 Batesburg, S. C. 



Aphis sassceri, n. sp. 

 This species was sent to me by Mr. E. R. Sasscer, from Miami, Fla., 

 where he collected it in the Subtropical Gardens from Anona rectilinata. 

 Specimens were sent to me alive, and received June 2, 19 10. 



February, 1911 



