60 Bulletin of the Brookly^t Entomological Society ^oi. viii 



by the author at Lakehurst, N. J., May 29, 1905, and June 13, 

 1908, recorded as Pygarctia abdominalis in the recent edition 

 of the "Insects of New Jersey. " These last are larger, have the 

 collar except the hind margin all gray, and the front clouded 

 with the same color. It was at first thought from the weight 

 of authority that the last mentioned identification was wrong 

 and that we had a new Pygarctia from New Jersey. 



The Original description of Pygarctia abdominalis was pub- 

 lished in the "Canadian Entomologist," vol. 3, p. 124, 1871, and 

 Mr. Grote says there of his specimen, collected at Demopolis, 

 Ala., "Collar tegulae and thoracic disk lead color with a light 

 reflection and more or less obviously margined with orange scales 

 and shades." As the size given is 44 mm. this supported the 

 identification of the New Jersey specimens as abdominalis, and 

 there would have been no doubt about it if Mr. Grote had placed 

 , a comma after the word "collar," because in both species the 

 tegulae are gray margined with orange or yellow. Mr. Samuel 

 Henshaw kindly settled the doubt by examining the type which 

 had been turned over to the Museimi of Comparative Zoology, 

 Cambridge, Mass., in 1884, by the Peabody Academy, where 

 it was originally deposited. This examination showed that 

 the collar is gray in the type, margined with orange and con- 

 sequently that the New Jersey specimens were correctly identified. 



The species from Florida I take pleasure in naming after my 

 friend Mr. John A. Grossbeck, who with Dr. James McDunnough 

 collectedinsects withme in the spring of 1912. The following de- 

 scription is in form like that of Mr. Grote's, so that comparison 

 can be more easily made. 



Pygarctia grossbecki, sp. n. 



The wings are lead color. The costal region of the fore- 

 wings above and below is striped with bright orange as is the 

 internal margin. The hind wings are concolorous immactilate. 

 Abdomen above bright orange, with a dorsal series of distinct 

 segmentary black spots; there is also a lateral series of black 

 points; beneath it is lead color. Head bright orange, also the 

 palpi except the tips which are dark. Legs dark lead color; 

 fore coxae orange. Collar bright orange; tegulae and thoracic 



