SCIENTIFIC NOTES AND OBSERVATIONS. 97 



Geometei's ? Why are Geometers alone affected in this way by winter 

 emergence, and not other groups ? Poecilocampa jmpuli coincides in 

 point of time with Chematohia hrumata, AsphiiJ/a flavicornis witli Ni/si^ia 

 h/'s}>i(larin, Taeniocampa p>nlverulenta and Tortrieodes hyemana with the 

 Hiihernias, and the last two, in this district, jirecede Anisopteryx 

 aescnlarla. Again, all Geometers are not so affected, for Larentia mnlti- 

 striiiaria, which emerges at the same time as A. aescidaria, has a J with 

 fully-developed wings. Mr. Front's remarks in relation to the 

 Amphidasydae, if well founded and if the same state of things obtains 

 in the other families in which species with a|)terous J s occur, would 

 be most important as indicating, at all events, some seasonal influence. 

 But is it a fact that, as a general rule, the wings of the $ A. hetidaria 

 are better developed than those of A. strataria ? Stainton, in his 

 Manual, says, speaking of the two species indifferently, " wings ample, 

 alike in both sexes ; " and Newman figures the 2 of the latter species, 

 with ample wings, and gives no indication in his description of any 

 lack of development in them ; nor can I see any sucb difference in the 

 specimens I possess ; possibly the wings of A. strataria are more rounded 

 than those of A. hetidaria, but is this sign, a sign of defective develop- 

 ment ? Turning now to the HyheriiUdae, we find H. marginaria, which 

 emerges in February, with the wings of the 9 to a considerable extent 

 developed, whereas Anisopteryx aescidaria, which does not emerge till 

 a month later, has an absolutely apterous 5 ; this seems to be retro- 

 gression with the advancing season, rather than jn'Ogression. — E. F. 

 Studd, Oxton, Exeter. March SOth, 1894. 



A PROBABLE NEW SPECIES OF EuciiLOE. — For some time I have been 

 of opinion that we have two species of this genus in England. The 

 insect Avhich I now take to be a species new to our fauna, is much 

 smaller than E. cardamines, measuring, on an average, only about an 

 inch and a quarter from tip to tip of the fore-wings. The discoidal 

 spot is placed, as in E. tnrritis and E. griineri, at the juncture of the 

 orange and white sjiaces, not, as in E. cardamines, well within the orange 

 tip. When viewed under the microscope, the wing-scales appear very 

 different from those of E. cardamines. This insect differs from the 

 true E. turritis (which is now, I think, very generally looked upon as a 

 distinct sijecies*) by its smaller size, which appears constant, and by the 

 costa of the fore-wings being dotted with black. I should be glad if 

 collectors will look out for this insect during the coming season, and 

 also examine their series of E. cardamines for any specimens answering 

 to the above description ; if they jiossess any they will be able to see 

 the specific differences for themselves. It is much rarer here than E. 

 cardamines, and is restricted, so far as I know, to a small area. I have 

 collected lepidojitera for many years, both in this country and on the 

 Continent, and, after studying the various European sjiecies of the 

 genus, have personally no doubt that this smaller insect constitutes a 

 distinct species which has hitherto been overlooked, in the same way 

 that Pamp)hila lineola was for a long time overlooked. I propose to 

 call tliis new species, EncJdolJ hesperidies. — F. B. Newnhabi, Church 

 Stretton, Salop. A^ml 4:th, 1894. 



*We should be glad of references to authorities upon this point. — Ed. 



