438 Explanation of Plates. 



Fig. 



6. Melineea mnem.e, ^ : capturedbyC. B. Roberts, Aug. 28th, 1903 : 

 in Hope Dep. 



7. Melinxa mneme, ^ : captured by C. B. Roberts, Aug. 28tli, 1903 ; 



in Hope Dep. 

 The same specimen is represented in Fig. 11, PI. XXIV, XXV. 



8. Heliconius numata : captured by C. B. Roberts, Feb. 10th, 1905 : 



in Coll. Kaye. 



9. Heliconius numata : captured by C. B. Roberts, March 3rd, 1905 : 



in Coll. Kaye. 



10. Heliconius numata : captured by C. B. Roberts, March 4tli, 1905 : 



in Coll. Kaye. 



11. Heliconius inimata, captured by C. B. Roberts, Feb. 9th, 1905 : 



in Coll. Kaye. 



12. Heliconius numata : cajitured by C. B. Roberts, March 4th, 1905 : 



in Coll. Kaye. 



13. Heliconius numata : captured by C. B. Roberts, Dec. 9th, 1904 : 



in Coll Kaye. 



14. Heliconius numata : captured by C. B. Roberts, April 2nd, 1905 : 

 The same specimen is represented in Fig. 12, PI. XXIII. 



Plate XXVII. 



Series of Lycorea jjcisinuntia and Lycorea ceres, transition from 

 barred to black hind-wing, showing parallel. 



All specimens are from the Potaro River, thirty miles above its 

 confluence with the Essequibo, British Guiana. (Between the eighth 

 and tenth mile from the Potaro on the road to the gold mines.) 



All figures are about | of the natural size. 



1. Lycorea pasinwntia, barred form : captured by C. B. Roberts, 



Oct. 1901 : in Coll. Kaye. 



2. Lycorea pasinuntia, darkest barred form : captured by C. B. 



Roberts, Oct. 1901 : in Hope Dep. 

 The same specimen is also figured in Plates XXIV and XXV, 

 Fig. 9. 



3. Lycorea pasinuntia, intermediate form : captured by C. B. Roberts, 



Nov.— Dec. 1901 : in Coll. Kaye. 



4. Lycorea pasinuntia, dark form with faint traces of inner section 



of pale submarginal band : captured by C. B. Roberts, Nov. — 

 D.-c. 1901 : in Coll. Kaye. 



