•ir)8 Lord liotlisGliiKl on AictiiiuT /rom 



wider in proportion to the length ( ? , length of fore Ming 

 S^-j mm., width 12-5mm.; J > length 15 mm., width 8-5mm.), 

 and the costa near the l)ase is prudneed into a lappct-like con- 

 vex projection ; the hind wings are large with a[)ex prodnced 

 into a point, not small and ronnd as in the (^ ; the colour is 

 salmon-pink, entirely opaque, being densely sealed. ? de- 

 scribed, Fonte Boa, Amazons, Sept. 1906 (<7. M. Klayes 

 coU.).] 



1 (J caught. 



4. Rubinsonia mossi, sp. n. 



($ . Pectus wliite ; palpi, fronts, and vortex yellow; 

 patagia buff; rest of thorax and abdomen pure white 



Fore wing semihyaline white, nervnies whitish grey, eosta 

 and terminal fifth of wing sooty mouse-grey ; hind wings 

 semihyaline white. 



Length of fore wing 18 mm. ; e\p;inse 40 mm. 



1 (J type caught. 



5. Rohinsonia rockstoniu, Schaus. 



ocl 



1 (J caught. 



Jiohitixoiiia rocksiojiia, Scbaus, I'roc. U.S. Nat. Miis. vol. xxix. p. I'OH 

 (ll'OO) (Essequibo, liriti.sli Guiaua). 



G. Robinsonia deivitzi, Gundl. 



liubinsonia dewitzi, Gundlach, Contr. Eutom. Cuba Li'piJ. i. p. 205 

 (1681) (Cuba). 



8 c? c?,l ? caught. 



7. Idulus neja^ Schaus. 



Idiilus neja, Schaus, Proc. U.S. Nat. Mus. vol. xxix. p. 208 (I'JOC) 

 (St. Jeau de Maroni). 



This insect shows great variation in size ; the majority 

 from the Guiauas are small, but a few equal in size the 

 Brazilian specimens, which appear to be mostly large. 



Length of fore wing, ^ : St. Jean de jNIaroni (smallest), 

 18 mm., expanse 41 mm. ; Para (largest), 23 mm., expause 

 53 mm. 



The undescribed 9 is much larger, and differs from the ^ 

 in the much broader, more brightly coloured, and much 

 more rounded fore wings, and in the larger and more 

 rounded hind wings. 



-^ 6 S A ? caught. 



