272 [December, 



Coptocycla sexpunctata Fabr. — This small insect when alive 

 appears as a small, rounded fragment of finely burnished gold. When 

 dead its brilliance vanishes completely. Occurs commonly. 



C. judaica Fabr. — Botanic Gardens, Georgetown. 



DolicJiotoma variecjata Linn. — Skeldon, Courantyne K. 



CheJipnorpha criharia Fabr. — Skeldon, Courantyne li. 



C. ciiKjulata Boh. — Issororo, N.W.D. 



C. cUcosa Boh. — Bel Air, Demerara. 



C brunnea Fabr. — Issororo, N.W.D. 



Ctenochira qitadrata DeG. — Issororo, N.W.D. 



Se/en/s spinifex Linn. — Issororo, N.W.D. 



Cassida tristriata Fabr. — Skeldon, Berbice. 



Tauroma hicornis Linn. — Tumatumari, Potaro li. A rare species. 



TWO SPECIES OF BRITISH APHIDES. 



BY F. LAING, M.A., B.Sc. 



(Published by perniissiou of the Trustees of the British Mu.«euui.) 



Macrosiphoiiiella aster is (Walk.). 



Aphis asteris Walker, Ann. & Mag. Nat. Hist. (2) iii, 1849, 

 p. 48. 



Apterous Viviparous Female. Olive-preen, shiniDg, under surface pulveru- 

 lent, oval, domed. Ante)mae equal in lenjj:th to the insect itself, black, except for 

 the proximal third of segment iii, which is pale brown. Segments j, ii equal, 



Fi.g 1. — Macrosiphoniella asteris (Walk.). Apterous §: A, Antenna; 

 B, Front of head ; C, Cornicle ; D, Cauda. 



iii slightly longfer tlian iv, v shorter than iv, vi nearly twice the lengtli of v, 

 the spur being four times the base ; a few hairs on all the segments, imbrica- 

 tions faint on distal end of iii, and whole of iv, distinct on v aud vi ; 



