42 PROCEEDINGS ENTOMOLOGICAL SOCIETY 



family problematical. 1 In such a case a study of the early 

 stages, biology and internal anatomy should help to solve the 

 problem. Perhaps the following data will stimulate someone 

 to investigate the group more carefully from this side. Dufour 

 calls special attention to the large size of the food-reservoir in 

 Phora and states that he knows few Diptera in which it is 

 proportionally larger; from his figure it is also evident that the 

 digestive tract is short as compared with the higher flies. 2 

 Both these circumstances support the views of Osten Sacken. 

 However, that the family is anomalous is well brought out in 

 the anatomical studies of Dufour. 



The following papers were accepted for publication: 



DESCRIPTIONS OF SIX NEW AMERICAN HETEROCERA. 



[Lepidoptera; Noctuidae.] 

 BY WILLIAM SCHAUS. 



Casandria purpurascens, new species. 



Female. Palpi fuscous fringed with grayish white. Head mottled 

 dark and light brown. Collar and thorax fuscous gray, the collar 

 posteriorly and patagia shaded with opalescent scales. Abdomen 

 fuscous gray above, with a large terminal light-brown space. Fore 

 wings leaden black; the base brownish; a faint dark-brown an temedial 

 line from subcostal, somewhat wavy and inwardly oblique, and in- 

 wardly shaded with brown from subcostal to submedian; reniform 

 large, pointed towards base, brown edged by a fine dark velvety line; 

 a brownish spot on costa above reniform edged with dark brown; 

 postmedial remote from cell, wavy, inwardly oblique from vein 6, vel- 

 vety fuscous brown, outwardly shaded with brown, and also broadly 

 so shaded inwardly from vein 4 to inner margin; some small subter- 

 minal brownish spots; the veins terminally brown; a fine terminal 

 black streak between 6 and 7, and 7 and 8; indistinct terminal dark 

 spots between the veins; cilia spotted with brown at veins. Hind 

 wings dull brown black; cilia tipped with white. Expanse 33 mm. 



Habitat: Sixola River, Costa Rica. 



Casandria steniptera, new species. 



Male. Palpi light brown. Head, collar, and thorax grayish brown. 

 Fore wings grayish, shaded with brown along costa, in cell, and on 



1 Thh systematic affinities of the dipterous family Phoridas, Biol. 

 Bull., vol. 12, pp. 349-359 (1907); Some further remarks on the syste- 

 matic affinities of the Phoridse, with descriptions of two new North 

 American species. Bull. Wise. Nat. Hist. Soc., vol. 7, pp. 103-108 

 (1909). 



2 L. c., pp. 322-M23, S41, pi. 11, fig. 134. 



