90 BKITISU APHIDES. 



Tyciiea phaseoli, Pass. Plate CXXVIII, figs. 7, 8. 

 Vii'i parous female. 



Inch. Millimetres. 



Size of body 0*0G0 X 0*040 1*52 X l'Ol 



Length of antennas 0*025 0*63 



Large, globose or semi-globose. Opaque white. 

 Slightly pubescent. Head flat and broad. Legs mode- 

 rately long in the second brood, but short in the queen 

 Aphis. The above measurement represents the size of 

 the queen Aphis, which is blind. The brood proceeding 

 from her are of different sizes according to their different 

 conditions of development. The adults have 5-jointed 

 antennas, the fifth joint being rather the longest, and 

 the fourth the shortest. Minute pigmentary spots 

 represent the eyes in the full grown insects. 



Sometimes this species is numerous at the roots of 

 the scarlet-runner, Phaseolus coccineus, from which 

 the above specimens were taken at Walthamstow. It 

 occurs also upon the French-bean, Phaseolus vulgaris, 

 and also upon the roots of Brassica, Euphorbia, and 

 Amaranthus. 



Genus XXXIV.— ENDEIS, Koch* 



MlNENLAUS. 



Rostrum moderately long. Antennas 5-jointed. 

 The first two and the fourth nearly equal ; the third 

 the longest; the fifth ends with a nail. Eyes very 

 small, but prominent. Body cycloid or else pear- 

 shaped. Cauda obtuse and bristly. Legs very short; 

 tarsi and claws as in Tychea. 



Koch remarks thai, as far as his knowledge went, 

 his two species, Endeis h, lla and B. rosea, lived in small 

 companies about the roots of wheat in September. 



* From IvSu'ic, deficient. 



