( x* ) 



hesebolus, in general facies at any rate. These #s placed 

 between ordinary Swiss apollo and delius, obviously incline 

 much more to the latter than the former in general tone of 

 colour and intensity of markings. The females are very large, 

 and vary to forms with much increased red ocelli. The pale- 

 ness of the red ocelli in many specimens, especially of the 

 males, is due to their not being in the freshest condition. 

 Several specimens were observed with yellow or orange ocelli, 

 but these were all in such poor condition that they were con- 

 sidered faded and bleached specimens rather than the well- 

 known variety with orange ocelli. It is probable however 

 that some of these may originally have been orange really. 

 Continuing, Dr. Chapman said : — " The specimens of apollo 

 and delius are all labelled with localities, and I need not 

 go over them individually. It may be observed that I do 

 not present aberrations but specimens to illustrate the races 

 occurring at different localities. Delius is apparently never a 

 large species, but apollo is of ten as small as delius. The point 

 that is perhaps most interesting is the great approach of some 

 delius to the ordinary form of apollo in the character and extent 

 of the black markings. A specimen from Evolena, though 

 unquestionably delius by ground tint and antennae, has the 

 markings and general aspect of apollo, and another specimen 

 from the Col de Torrent, practically the same locality, closely 

 approaches this. Two specimens brought by Mr. Tutt from 

 Larche are undoubted delius, but are in general aspect in 

 absolute agreement with apollo. Three other specimens with 

 these are extremely like them in size, markings, etc., but seem to 

 be equally undoubted apollo. I took these five specimens unset 

 out of Mr. Tutt's field store-box, where they formed a little 

 group by themselves, and Mr. Tutt pointed them out to 

 me as coming from very high ground near Larche (South 

 Dauphine, though actually in a northern tongue of Provence). 

 Amongst the specimens placed with these are similar small 

 apollo, that have quite equal claims to be called delius. They 

 have rather short antennae like delius, but have not the black 

 rings of that species. It is interesting to note the small size 

 of these apollo, exactly that of delius, from various localities 

 in the alps of the Barcelonnette region, which is comparatively 



