52 [March. 



stant, indeed, one of Mr. Bright's specimens (a female) has them of 

 unusual breadth ; and taking all circumstances into consideration, 

 although I am satisfied that this remarkable example is genuine 

 " Hadena " Maillnrdi of Hiibner, Herrich-Schiiffer, Hofmann, &c., it 

 appears equally certain that it is only one of the numerous variations 

 of Cri/modes exulis. Any one who looks at the figure labelled e^rw/Zs in 

 Professor Hofmann's recently published work, and observes that it is 

 drawn from one of the most obscure and dull looking forms of that 

 insect, will fully understand how natural it is to believe the form 

 Maillardi to be a distinct species. It is recorded as occurring in the 

 Alps, the Pyrenees, and the mountains of Norway, but I know of no 

 previous example in the British Isles. 



39, Linden Grove, Nunhead, S.E. : 

 January 1th, 1897. 



TERACOLUS AUXO, Lucas, REARED FROM EGGS LAID BY 

 T. TOPHA, Wallenge. 



BY GUY A. K. MARSHALL, F.Z.S. 



In a not yet published paper recently read before the Zoological 

 Society I attempted to give a revision of the genus T<?ra<?o/ws, chiefly in 

 order to demonstrate the extreme seasonal variability of the majority of 

 the species. The assumption, however, that the differences exhibited 

 are seasonal, and not specific, was based entirely on observations in the 

 field, and not on breeding experiments ; but, considering that several 

 observers, both in India and South Africa, had independently arrived 

 at precisely similar conclusions on the subject, I felt quite satisfied 

 that the evidence was sufficiently reliable ; and, indeed, no one who 

 has had an opportunity of observing these insects in nature for several 

 seasons could possibly have any doubts on the matter. Apparently 

 it is the opinion of some entomologists that such evidence is inadequate, 

 and should not be accepted as proof of seasonal dimorphism until 

 one form has been actually bred from eggs laid by the other, and, 

 therefore, during a short visit last October to the Lower Tugela Eiver 

 in Natal, where the commoner TeracoU are fairly plentiful, I deter- 

 mined to obtain, if possible, some definite proof in support of my 

 beliefs. Although to some extent successful, I was disappointed at 

 not being able to accomplish more, but, unfortunately, it was an 

 exceptionally poor spring, and butterflies were unusually scarce, and, 

 moreover, I was a little too late, as the dry-season broods were prac- 

 tically over, being replaced by intermediate and early wet-season 



