1036 LIST OF HOMOPTEROUS INSECTS. 



301. Aphis egens. 



Pallida et aptera vel nigra et alata ; hujus thoracis segmentorum 

 margines Jlavo-virides ; abdomen flavo-viride, lateribus nigro 

 maculatum, corniculis brevissimis ; antennce corpore non lon- 

 giores ; pedes fcem. alatce nigri, feinoribus anticis tibiisque 

 fiavis. 



The viviparous wingless female. Bright lemon-colour, inclining 

 to white beneath, oval, convex, very small, rather short: feelers 

 black, as long as the body, yellow at the base : mouth pale yellow, 

 with a black tip, nearly reaching the hind hips : nectaries yellow, 

 with black tips, hardly one-twelfth of the length of the body : legs 

 pale yellow ; knees, feet, and tips of shanks black. 



Var. /3. Yellowish white. 



Var. y. Saffron-colour. 



The viviparous winged female. Black : feelers shorter than the 

 body : mouth dull yellow, with a black tip : fore border and hind 

 border of fore-chest and fore-breast dull greenish yellow : abdomen 

 dark yellowish green, with a row of black spots on each side: necta- 

 ries black, about one-twelfth of the length of the body : fore-thighs 

 and shanks except their tips dull yellow: wing-ribs pale yellow; 

 rib-veins yellow ; brands pale brown ; branch-veins brown. 



England. 



302. Aphis Hippophaes. 



Flava, fusiformis ; thoracis discus in alatis fuscus ; antennce cor- 

 pore breviores ; cornicula mediocria ; alee limpidce. 



T7ie viviparous wingless female. Pale yellow, spindle-shaped, 

 sometimes tinged with red : a few green dots on the back, and a 

 row of transverse green spots along each side of the body : front 

 bristly: feelers shorter than the body ; first joint angular on the in- 

 ner side of its tip; fourth joint much shorter than the third; fifth 

 shorter than the fourth ; sixth much shorter than the fifth ; seventh 

 a little longer than the sixth : nectaries from one-fifth to one-sixth 

 of the length of the body. 



The viviparous winged female. Disk of the chest brownish : 

 wings colourless; distance between the first and second veins about 

 twice farther at the tips than at the base ; third very much farther 



