PLATE CXXIX. 



Endeis foemicina. (Page 91.) 



Fig. 1. — Viviparous female taken in anthills under 

 stools of Carex. Fig. 3. — Head and antenna?, eyes 

 rudimentary. 



Endeis pellucida. (Page 91.) 



Fig. 2.* — Viviparous female. Fig. 4. — Antenna and 

 rostrum. 



Endeis carnosa. (Page 92.) 



Fig. 5.— Viviparous female. Fig. 6. — Apical rings 

 and ovipositor. Fig. 7. — Part of the head and an- 

 tenna. The capitate hairs on the vertex are remark- 

 able. Fig. 8. — Tarsus and claws. 



Rhizobius graminis (pottc). (Page 93.) 



Fig. 9. — Queen Aphis or foundress. 



Fig. 10. — Under side of a later generation. 



Fig. 11. — Part of the under side of fig 9. 



Fig. 12. — Tarsus with single claw of front foot. 



Fig. 13. — The same, with double claw of middle foot. 



Fig. 14. — The same, portion of the hind foot. 



N.B. Since the figures of Rhizobius poce were drawn 

 on this Plate, and the species was named at page 93, I 

 have found that Dr. Cyrus Thomas had discovered a 

 Rhizobius in America, which feeds on the same grass as 

 the Aphis I so named. The American Rhizobius poce 

 has much in common with the English insect; but, 

 nevertheless, it cannot be, I think, identical. I give 

 way, therefore, to Dr. Thomas's right of precedence, 

 and I here correct the name I had given in my Plate 

 to that of Rhizobius grammis. Vide Dr. Cyrus Thomas's 

 * Third Report on the Noxious Insects of Illinois,' p. 

 1GG, 1879. 



* For 2 — -i uii the plate, read '1 and i. 



