4 THE ENTOMOLOGIST. 



as from Gruyeres, my impression now being that certain small 

 and dark examples of Pararcie Jiicera, since arranged in their 

 proper place and bearing a Gruyeres label, are the then-supposed 

 hiera. But, of course, this does not in any way affect the evi- 

 dence of Jiiera being double-brooded there, and elsewhere at suit- 

 able levels.— H. Eowland-Brown.1 



A POSSIBLE HYBRID OF AGIUADES THETIS S 

 AND POLYOMMATUS ICARUS ?, OB OF A. 

 CORY DON $ AND P. ICARUS 2. 



By T. Rbuss. 



Agkiades hybrid. 



The above figure represents an interesting " blue " taken 

 by Mr. L. W. Newman, of Bexley, in mid-September last at 

 Folkestone while drying its wings after emerging from the pupa. 

 In the upper side facies the brilliant blue, the marginal black- 

 and-white spotting in the hind wings,* strongly suggest the 

 parentage of A. thetis, while the almost pure white (aberrative) 

 fringes with some signs of the inner grey border of P. icarns in the 

 apex and slight black projection of the veining in the anal and 

 outer angle of the hind wing suggest the influence of icariis. The 

 strong blackening of the nervures, however, reaches as far into 

 the wing area as in A. corydon ; the first black spot in the outer 

 angle of the hind wing is also like that in corydon, and there are 

 black and whitish scales mixed in with the blue ones in the 

 margin of the fore wings, especially near the apex. These 

 details may be aberrative, t but it is perhaps thinkable that a 

 hybrid between A. corydon <? and P. icarus ? would exhibit a 

 thetis-like facies, as described, with intensified black markings. 

 The wings are less rounded than in icarus — they are more 



'■''■ I possess a male P. icarus aberration, recorded in the Ent. Rec, 

 vol. xxi. pt. 9, which is strongly spotted in the hind win^s upper side, and 

 which, as I only now noticed and could verify with a lens, has some white 

 scales mixed with the blue ones beneath some of tlie black spots, especially 

 of those in the anal angle of the left wing. 



f One must also be on the look-out for secondary sexual characters of 

 both sexes in hybrids ; hybridism favours their mixture. A black suffusion 

 the fore wing margin occurs sometimes in ^ P. icarus ab. 



