C. Lapworth — Researches in the OraptoUtic Shales. 533 



same butterflies ; that is to say, we have here the contrary of what 

 would be produced if we examine a living butterfly in this position. 



The parts which we have before us are : a rather badly pre- 

 served body, obscure traces of the last palpal articulation, an- 

 antenna (or probably a portion of one only), a spiral proboscis unrolled, 

 the two hind legs and portions of others, the greater part of the 

 two first wings, and fragments of the base of the second wings ; of 

 these latter all the borders have disappeared, the base only remains 

 of some of the nerves, which furnishes scarcely any additional 

 information on the pterology of the insect. The only portion of 

 the edge of the first wings, which could be accurately determined, 

 is the most essential part ; the apex of the left wing and the upper 

 portion of its extreme edge suffice to indicate that its general con- 

 tour was similar to that of the European Satyrides of the present 

 time ; but one could easily follow the traces of each nerve on the 

 whole of the remains. 



The essential parts of the first wings are so perfectly preserved, 

 that entire confidence may be placed in the character of the re- 

 mainder. It is difficult to discover the least vestige of the costal 

 margin on the specimen. One can however determine with almost 

 absolute certainty its points of contact with the costal nervure, and 

 the two first upper branches of the sub-costal nerve. 



In regard to the body of the insect, nothing can be said with 

 precision, unless the form of the abdomen and the appearance of its 

 extremity allow of its being considered a female, which had de- 

 posited the greater part of its eggs, or in which they were only 

 partially developed. 



We propose to call it Satyrites Heynesii. The organization of the 

 first wings does not seem to offer a sufficient relation with that of 

 any known genus of Satyrides, to allow of its being classed with 

 them ; it has undoubtedly close affinities with the distinctive characters 

 of the genus Dehis (Lethe, Hiibn.), as it has been described by 

 Messrs. Westwood and Hewitson, if we except of course the Papilio 

 Portlandia of Fabricius. It is interesting to observe that these 

 authors have placed this group just beside the genus Cyllo {Me- 

 lanitis, Fabr.), in which Dr. Boisduval placed the fossil species of 

 Aix, which he named C. sepulta. Moreover, it is not less interesting 

 to remark that all the living representatives of these two genera are 

 natives of India, so that the insects which approach the nearest to the 

 fossil butterflies of Provence are found in the countries of the East. 



EXPLANATION OP PLATE XIII., FIGS. 2 & 3. 

 Fig. 2. The butterfly as it appears on the stone. Natural size. 

 Fig. 3. A first wing : twice the natural size. The dotted lines represent the parts 

 reconstructed by analogy. 



III. — Note on the Ebsults of some Eecent Eesearches among the 

 Graptolitic Black Shales of the South of Scotland. 

 By Charles Lapworth, Esq. 



IN his excellent paper on Neio Scottish Graptolites, published in 

 the last monthly part of the Geological Magazine, Mr. John 

 Hopkinson incidentally refers to the various opinions that have been 



