284 Dr. W. J. Holland on some neio 



organs. The body was opened a little to the right of the mid- 

 dorsal line. In the middle are seen the three longitudinal 

 muscles of the tvivium (tr.'). On the right is the right muscle 

 of the bivium (r.bi:), and ou the left is the left one (l.bv.). 

 The Cuvierian organs {c.o.) are seen forming a great mass 

 attached to the left respiratory tree {l.rsp.), which is attached 

 by a mesentery to the rectum (;•.). Some of the Cuvierian 

 organs (c.o.') are seen passing through au aperture in the wall 

 of the cloaca (cl.) and protruding from the anus (an.). On the 

 right is seen the right respiratory tree (r.rsp.), the extremity of 

 which has been loosened from its attachments and hangs over 

 the side of the dissection. 



XXXII. — Descriptions of some new Species of African Lepi- 

 doptera. By W. J. HOLLAND, Ph.D., F.E.S., Pittsburgh, 



U.S.A. 



EHOPALOCERA. 



Nymphalidae, Swains. 



Genus ThaleropiS, Stauclinger. 



1. Thaleropis trigona^ sp. n. 



^. Antennas bUick above, brown below. Front white; 

 eyes brown; palpi black above and whitish below ; collar and 

 thorax black, spotted with yellow. The end of the abdomen 

 is yellow above and tipped with black. The underside of 

 the body is bluish grey. The anterior wings are strongly 

 arched on costa, produced and rounded at apex, stronglj 

 excavated upon the outer margin, with the outer angle 

 scarcely rounded and the inner margin straight. The costa 

 of the posterior wing is one fourth shorter than the inner 

 margin of the anterior wing ; the outer margin is very con- 

 vex and produced at the anal angle in the form of a short and 

 broad tail. The markings of the upper surface resemble those 

 of T. kinngnanctj Grose Smith, but the macular bands of 

 yellow traversing the median area of both wings differ from 

 those of all otiier species hitherto described in that they are 

 subtriangular in form, increasing in width from the costal 

 region towards the inner margins of the wings ; and there 

 are no subcostal yellow spots as in T. kinugnana and 

 T. uhelda. The markings of the underside are much as in 

 T. [Ft^euducrea) uhelda^ Mabille, but the base of the posterior 

 wing is umber and the median transverse band of this wing 



