4 THE ENTOMOLOGIST. 



albidis." Nemeophila plantaginis hospita, Schiff., " al. post, albis, 

 nigro-maculatis." Agrotis ripcB we'issenbornii, Frr, Triphoina 

 comes p)allescens, hind wings creamy white, Entom. xx. 240. 

 Coccinella septempunctata pallida, pale yellow, Entom. xx. 

 Ji37.— This appears to be rather a miscellaneous collection of 

 varieties, but the information obtainable concerning them is not 

 sufficient to class them more precisely at present. The pallid 

 forms of Epinephele seem to be due simply to the non-development 

 of brown pigment, whereas the pale Coccinella has almost certainly 

 a different origin in arrest of development of the usually red 

 pigment at its yellow stage, like the brown variety of Pseiidoterpna. 

 The var. albicans of Lyccena corydon might almost be called an 

 albino. Mr. A. H. Swinton (Ent. Mo. Mag., 1885, 281) speaks 

 of white L. corydon occurring on limestone plains in Spain, which 

 is interesting as tending to confirm the theory tliat albinisms are 

 of unusual frequency on limestone soil. In this connection it 

 maybe mentioned that Wollaston found i\\?ii Bemhidium atlanticum, 

 Woll., was dark in Madeira, but much paler in Porto Santo, which 

 is much more calcarious, and is strongly impregnated with muriate 

 of soda. 



e. Dimorphism : light and dark forms. 



Heliothis peltigera pallida, Entom. xi. 24. H. armigera, a. 

 fusca (Entom. xi. 24) ; b. ochracea (4th. Kept. U.S. Ent. Com., 

 1885, pi. iii., fig. 7) ; c. unihrosa, Grote, sp. Tceniocampa 

 gracilis rufescens, Proc. S. Lond. Ent. Soc, 1886, 34, 35. — These 

 are given as examples, but it is well known that many genera 

 of brownish Noctute present light and dark varieties, which 

 are often more or less local in their distribution ; and a similar 

 phenomenon obtains in certain Coleoptera, such as Meligethes 

 rufip)es rufescens (Ent. Mo. Mag., 1885, 217). 



Limenitis disippus fioridensis, Strecker, ground colour very 

 dark. L. arthemis rufescens, reddish brown above as well as 

 below (Maynard) . — The first of these is a southern form in the 

 United States, and it is worthy of note that there also occurs 

 in the Southern States a distinct species, resembling the southern 

 variety of L. disippus in its normal colour, but differing some- 

 what in the markings. 



Hydroecia nictitans ; a. typica ; b. erythrostigma. Haw. 

 Anomis texana, Riley; a. fuscostigma (4th Kept. U. S. Ent. Com., 

 pi. ii., fig. 6) ; b. albostigma {loc. cit., fig. 6a). — The dimorphism 

 in the colour of the stigma in H. nictitans is familiar to everv 

 British entomologist ; it is, therefore, interesting to find a closely 

 analogous case in a moth from Texas. 



f. Dimorphism confined to one sex. 

 Colias edusa helice, ? , Hb. C. helice pallida, ? , Entom. 

 xi, 51. C. erate pallida, ? , Stgr. C. aurora chloe, $ , Ev. 



