KOVITATES ZOOLOGICAE XXII. 1915. 201 



snbmarginul line, which is accentuated by vein-dots iti celox, is continuous and 

 not accentuated ; between it and tlie preceding line a Ijroad dilTnso line widened 



jiostcriorly into a black spot or triangular patch. Hindwing olive-black, with 



a very faint pale snbmarginal band, fringe pale, slightly darkened at the vein-ends. 



Underside similar to that of i-elox, apart from the more yellowish colour of the 

 ground ; both wings with two lines in outer half, the distal line consisting of vein- 

 dots, which are either separated or joined together. 



Genitalia (only the type examined) : Tenth tergite as in oelox, but tenth sternite 

 less pointed ; harpe shorter than in velox, the free distal portion triangular ; penis- 

 sheath with four teeth on one side and one on the other. 



SOME NEW SFHINGIBuiE IN THE COLLECTION OF THE 



BRITISH MUSEUM. 



By lord ROTHSCHILD, Ph.D., F.R.8., and K. JORDAN, Ph.D. 



(Plate XX. figs. 4, 6). 



1. Amplypterus gannascus jamaicensis snbsp. nov. 



?. Ab. A. (/. gannasco maculis nigris paginae inferioris plus minus obso- 

 lescentibua distinguendus. 



Long. al. ant. : 62 mm. 



Hab. Jamaica (Dr. Jackson), 1 ?. 



A large broad-winged specimen ; upperside of body and forewing a greyish 

 vinaceous cinnamon ; subbasal band of forewiug broad. The black bands of the 

 hindwing narrow, the proximal one 6 mm. distant from the apex of the cell, i.e. more 

 distal than in A.g. gannascus Stoll (1790), being partly shaded with red, 2 ram. 

 broad in centre and slightly narrowed at both ends, second band a continuous 

 separate line, subdentate on the veins, third band represented by spots on the veins, 

 first three spots arrowhead-shaped, pointing proximad, and not quite isolated from 

 one another, fourth spot a small dash on the vein, fringe of distal margin paler 

 than in gannascus. 



Underside : tawny ochraceous with a slight vinaceous tint ; the black spots of 

 the forewing obsolescent, the rounded discoccllular spot being more distinct than 

 the others ; the grey marginal area broader in centre than in gannascus ; the 

 markings in the outer half of both wings vestigial, no distinct anal spot. 



2. Isognathus rimosa jamaicensis subsp. nov. 



¥. Alls anticis snpra griseis sparsim nigro irroratis et macnlatis, limbo nigro 

 alarum posticarum lato, macula anali grisea fere abs({ue lineolis trans versis nigris. 

 Alis subtus cum corpore fnsco-brunueis, sparsim grisescentibus, posticarum macula 

 aurantiaca magna bene expressa. 



Long. al. ant. : 51 ram. 



Hab. Jamaica (Dr. Jackson), 1 ?. 



Upperside of body and forewing grey, with a faint pinkish tint which is 

 particularly obvious if the specimen is held side by side with a specimen of 

 /. r. molitor R. & J. (1915) from Haiti ;* pronotum, the central stripe on the 



♦ Cf. p. 286 of the present volume. 



