LVC.KXA ARION IN THK COTSWOI.DS. 108 



more or less success, and some few dealers and young amateurs have, 

 perhaps, in some years, been over-anxious to fill their boxes. So 

 scarce did the species become at one time, that the late Prof. Marker 

 read a paper before the Cotswold Naturalists' Field Club, on its 

 " extinction " from the Cotswold district. I was invited to the meet- 

 ing, and expressed the opinion that it was not extinct, and my pro- 

 phecy has proved correct, for it has been taken, or seen, with a few 

 exceptions, nearly every year since that time, though sometimes only 

 singly. Other causes than over-catching have, it is pretty clear, been 

 at work to deplete the species. The original locality, near the Eoman 

 entrenchments, has been completely cut up by timber hauling and 

 quarrying, to say nothing of excessive grazing and golfing. The 

 disappearance of local species occurring in the Cotswold district is not 

 confined to L. ariou. For many successive years several species were 

 plentiful which now are rarely seen. The pi'ide of having long series 

 has, perhaps, something to do with the desire to catch large numbers 

 of particular species. If collectors could be induced to be content 

 with, say a male and female as types of a species, only adopting the 

 long-series system in the case of variable kinds, I think the persistency 

 of rare and local species might be prolonged in many localities. After 

 all, there may be occult influences at work to increase or diminish 

 particular kinds, which we have not yet been able to discern. 



Notes on the Zygaenides. 



II. — History of Zyg.ena hippocrepidis, St., as a British species. — 

 Z. hippocrepidis. Wood. — Zyg^na hippocrepidis, St., probably a 



HYBRID FORM BETWEEN Z. TRIFOLII AND Z. FILIPENDUL.E. GeNERAL 



records referring EITHER TO Z. HIPPOCREPIDIS OR THE PARALLEL 

 ABERRATION OF Z. FILIPENDULiE. 



(Contintied from p. 87 ). 

 By J. W. TUTT, F.E.S. 

 It may now be advisable to give a brief summary of what I have 

 been able to glean concerning Zygaena fnppocrepidis, St. This species, 

 it need scarcely be said, is not the hipjwcrepidis oiHuhnev cindOchaen- 

 heimer, which is generally accepted as a var. of Z. tranmlpina, nor is 

 it Z. uchsenheiineri, Zell., which I have shown (Notes on Zijijaenidaf, 

 pp. 19-21) to be an Alpine species. Stephens separated this species 

 from, and compared it with, Z. fiUpendulae. He captured it first in a 

 field near Coombe Wood, in June, 1810, and subsequently near 

 Darenth Wood. He describes it as varying in size like Anthrocera 

 fdipendulae, "which it greatly resembles, but the border of the 

 posterior wings is considerably more distinct than in that insect, and 

 undulated internally ; the sixth spot on the anterior wings (the one 

 towards the anal angle) is generally small, with a coloured neryure 

 passing through it ; the under surface of the anterior wings with the 

 disc entirely red, and the maculations not defined. Above, the 

 anterior wings are blue-black with six red spots, disposed as in A. 

 Jilipendidae, and the posterior wings red, with an undulated greenish- 

 blue margin; the abdomen immaculate" flllus. of Brit. Entom.,\., 

 p. 109). Stephens further describes a yellow-spotted form of this 

 species (three specimens of which he bred) from the neighbourhood of 



