10S8 LIST OF HOMOPTEROUS INSECTS. 



Baizongia Pistacise, Rondani, Osservazioni, Sec. Nuovi Annali 

 della Scienze Naturali di Bologna, 64, 1847. 



South of Europe. 



13. Pemphigus? Sinensis. 



The insect forming the Chinese galls, Doubleday, Pharm. Joum. 

 vii. 310. 



" Chest and abdomen becoming gradually wider to the tip of the 

 abdomen, which is rounded at the outer angle, and emarginate in 

 the middle of the hind margin : feelers five-jointed, short, rather 

 stout, about half as long as the body; first and second joints short 

 and stout ; second longer than the first ; third much longer, equal to 

 both first and second combined ; fourth rather longer than the se- 

 cond, broadest at the tip ; fifth about equal in length to the third 

 and fourth combined, subfusiform, contracted a little before the tip : 

 labrum short, pointed : mouth short, dilated before the tip : legs 

 short ; feet apparently two-pointed, furnished with two claws.'' 



a. China. 



14. Pemphigus? Ole^. 



Eriosoma Olese, Leach, Risso, Hist. Nat. des Prin. Prod, de I'Eur. 

 Merid. v. 



Thorax gray : head dirty green : eyes purplish violet-black : 

 antenucE gray; their tips purplish black : abdomen and back inclin- 

 ing to green : legs gray : wings purplish brown : last segment of the 

 abdomen purplish black. 

 South of Europe. 



Genus 5. TETRANEURA. 



Tetraneura, Hartig, Germ. Ent. Zeit. iii. 366. Kalt. 

 Aphis, p., Geoff., Reaum., Deg., Von Gleichen. 

 Byrsuciypta, Ilaliday, Westw. 



