butterflies of the French Pyrenees. 401 



119. S. alveus. E. — De Graslin mentions also the 



varieties fritillum and cirsii as taken with the 

 type in the Val d'Eyna, but I do not pretend to 

 be able to distinguish them. 



120. S. serratulce. E. — Also mentioned by de Graslin 



as taken with the last. 



121. S. sao. E. C. To 5000 ft. July. 



122. Nisoniades tages. W. — Only taken by me at Biar- 



ritz, but doubtless occurs in the Western and 

 Central Pyrenees. 



._„ TT . j7 T! ( No doubt these occur in 



123. Hespenathamnas. E. the Central and Western 



124. H. hneola. E. C. Pyre nees, though I did not 



125. H. hnea. E. ^ tw 



126. H. comma. E. — Only mentioned by de Graslin. 



I did not see it. 



127. H. sylvanus. E. C. To 5000 ft. July. 

 Cyclopides morpheus. W. July. — Perhaps not 



rightly included, as I only took it near Biarritz. 

 The flight of this species is unlike that of any 

 other lepidopterous insect I ever saw. I found 

 the males hovering with a short jerking flight 

 over dried-up marsh and the females settled on 

 hedges on the adjacent hill-side. It is curious 

 that this peculiar insect, which has no congener 

 in the Palaearctic region (unless C. ornatus, 

 Brem., which seems to me to be generically 

 distinct, is included), and which is local and only 

 found here and there in Europe, should extend 

 right through Armenia and Siberia to Amurland 

 and Corea, without, as far as I know, the slightest 

 variation. 

 If to the species in this list were added those which 

 occur in the unexplored valleys on the Spanish side of 

 the Pyrenees, and those which a better knowledge of the 

 western and lower part of the range would no doubt 

 include, we should probably have at least 150 species, 

 or within twenty of the number found, according to 

 Frey's latest work, in the whole of Switzerland, which is 

 perhaps the richest part of Europe in Lepidoptera, con- 

 sidering its size. 



Of species found in the Swiss Alps, but absent in the 

 Pyrenees, the most worthy of notice are as follows : — 

 Parnassius delius. 



TRANS. ENT. SOC. LOND. 1887. — PART IV. (DEC.) 2 F 



