Green Fruit Worms. 575 



ties, and not distinct species. Mr. A. G. Butler, of the British 

 Museum, has recently also expressed his opinion (The Entomolo- 

 gist for 1891, p. 242), that all three forms were only variations 

 of a single species, X. antennata. Our authorities on this group 

 of moth, Professors Smith and Mr. Grote, however, have consid- 

 ered them as three distinct species; and our study of the earlier 

 stages of the insects confirms this conclusion. 



As all three species apparently occur in the same localities, 

 and as the moths are so remarkably similar in size, color, and 

 markings, it is not surprising that they should be classed as va- 

 rieties of one species. We have never before seen three species of 

 moths which showed such remarkable resemblance to each other, 

 and yet were quite different in their caterpillar and pupal stages. 



At a on plate 1 is shown a moth of X. antennata, natural size; 

 the figure is reproduced from a photograph taken from life while 

 the moth was at rest in the top of one of our cages. At &, plate 

 1, the moth is shown with wings expanded, natural size, and at 

 h is shown same moth, twice natural size. These figures will show 

 the size and markings of the moth, and also represent nearly its 

 natural color. It usually differs from the moth of X. laticinerea 

 in the ground color of its wings being of a more brownish cast; 

 and from the moth of X. grotei in that its markings are not so 

 bright and distinct. There may be slight antennal differences in 

 the males of the three species, and there are certainly quite 

 marked differences in the male genitalia of X. antennata and X. 

 grotei as is shown, enlarged at g and f, plate 3. 



The moth of X. antennata began to emerge in our cages Septem- 

 ber 13th, and all had appeared by October 6th; the specimens 

 which Professor Comstock reared in 1877 emerged September 

 17th. In the following table the recorded captures of the moths, 

 at lights or sweetened baits, are given: 



