ART. 20 



THE APHID GENUS AMPHOROPHOEA MASON 



AMPHOROPHOKA SPIRAECOLA (Patch) 



Figs. 164-168 



Macrosiphum spiraecola Patch, Maine Agr. Exp. Sta. Bull. 233, 1914, p. 



271. — Wilson and Vickeky, Trans. Wis. Acad. Sci. Arts and Letters, 



vol. 19, pt. 1, 1918, p. 161. 

 Nectarosiphon spiraecola Patch, Conn. Geol. and Nat. Hist. Surv. Bull. 



34, 1923, p. 310. 



The writer has had the privilege of examining the cotype specimens 

 which were kindly lent by Dr. Edith M. Patch. In the original 

 account only the apterous form was discussed. Doctor Patch 

 later took a single alate viviparous female in company with apterous 

 forms. The drawings and the following description are from this 

 specimen. 



Alate viviparous female. — Antennae nearly twice as long as body, 

 rather slender, dark colored, length of hairs less than half of diameter 

 of the segment, III with 15-17 circular sensoria of varying sizes and 

 not in an even row, IV, V, and VI distinctly inbricated and with no 

 secondary sensoria; length of segments as follows: 



The specimen which lays on its side shows a tubercle slightly 

 back of the center of the head, with a knobbed hair directly in front 

 of it. The antennal tubercles appear rather small from the lateral 

 view. The beak is short, not reaching beyond the second coxae. 

 The cornicles are moderately swollen, 0.784 mm. long, reticulated for 

 0.08 mm., imbricated over nearly the entire length, widest diameter 

 0.12 mm., smallest diameter 0.048 mm., flange 0.064 mm. wde. The 

 Cauda is twisted, but appears to be very long and moderately wide. 



Doctor Patch, in a letter furnishes the following color notes: 

 "Thorax pale brown; body pale brown; cornicle pale, tip dark." 



Apterous viviparous female. — Antennae about twice as long as 

 body, lighter colored than in the alate, hairs inconspicuous, shorter 

 than width of segment. III with 3-7 sensoria near base, distal seg- 

 ments faintly imbricated. Antennal tubercles large and conspicuous. 



Beak reaching second coxae. Cornicles long, moderately swollen, 

 distinctly reticulate at tip. Cauda long, conical, slight indication of 

 constriction, three sets of hairs. 

 43328— 25t 5 



