96 THE CANADIAN ENTOMOLOGIST. 



from any species of Spilosoma known to him up to that time, it seems in 

 the highest degree probable that it was a typical lightly-marked female of 

 Antigone, in which case it seems to me that Sir George Hampson's 

 contention would entirely fall to the ground. In the third place, Messrs. 

 Grote & Robinson published their description of the species in 1868, 

 retaining the name Congrua and referring type c correctly to Virginica, 

 which should certainly be allowed weight, as all difficulty was thereby 

 cleared up, the name Congrua being restricted to a single valid species. 

 And, lastly, it is certain that the species described by Strecker in 1878, 

 ten years after Grote & Robinson's description appeared, had been 

 standing under the name Congrua in a great national museum since 1855, 

 that is, for twenty-three years, before it was redescribed by Strecker. 



Under these circumstances, I contend that the name Congrua should 

 be used for this species, and the name Antigone be referred as a synonym. 

 Before leaving this subject, I may mention that Sir George Hampson has 

 informed me that as both this species and Prima have the claw on fore 

 tibiae, they belong to the genus Estigmene, Hiibn., = Leucarctia, Pack., 

 and not to Spilosoma. 



In regard to the forms which Walker referred to Cunea, it is 

 impossible to be certain, for while there are in the collection quite a 

 number of specimens of this species, a good proportion of these have been 

 received at later dates than those referred to by Walker. But of one 

 thing we can be certain, and that is, that so far at least as the males go r 

 he must have referred to Punctatissivia, and it is a remarkable fact that in 

 the collection there are no less than eight specimens of this species (7 g 

 and 1 °. ) having the hind wings more or less spotted, though in two males 

 the spots are barely perceptible. But Walker's description of the female 

 as il Hind wings with some brown submarginal spots," was probably 

 based upon the one specimen of the heavily-spotted Gomin form of 

 Spilosoma, or, I suppose, I should say Estigmene, which was entered in 

 the Register, under number 950, as Arctia Cunea, and as received on 

 19th June, 1839, from Mr. Milne's collection. Another specimen, No. 

 951, was entered under the same name, but there is only the one 

 specimen of the Gomin form in the collection. 



Sir George Hampson called my attention to a specimen which he 

 said agreed exactly with Walker's type of Spilosoma Mutans, which is in 

 the museum at Oxford, and which specimen is only a very ordinary form 

 of Cunea or Punctatissitna. Sir George also showed me Walker's type of 



