80 Psyche [April 



peculiar larval condition within the parent, and pupating at 

 birth. The decrease in the number of birds will undoubtedly 

 diminish these flies, which deserve a great deal of careful biological 

 study, for our knowledge of the group is still very inadequate. 



The following records are in part based upon specimens in 

 the Museum of Comparative Zoology, Boston Society of Natu- 

 ral History, and the author's collection. 



Ornithoica confluenta (Say). 



Oniithomyia confluenta Say, Jour. Acad. Nat. Sci. Phila., Ill, 



103, 1823. 

 Ornithomyia confluens Wied., Auss. Zw., II, 611, 1830. 

 Ornithomijia vicina Walker, List Dipt., IV, 1144, 1849. 

 Ornithoica confluenta Speiser, Ann. Museo. Civ., XX (2d ser.) 



558, 1899; Ent News, XVIII, 103, 1907. 

 Ornithoica confluens Aldrich, Catl., 655, 1905. 



Say recorded this species from" A rdm candidissima," — Snowy 

 Heron (Egretta candidissima). No locality is given, and it may 

 have been collected in "Pa.," "or west of the Missouri River." 

 Wiedemann gives Pennsylvania. Walker's 0. vicina was from 

 "Jamaica, on Ephialtes grammicus" [Jamaica owl] (Gosse Coll.); 

 also on Psittacus leucocephalus. Nothing further regarding the 

 habits of this species appeared until 1878. Osten Sacken in his 

 catalogue of Diptera, page 263, says: "Oniithomyia confluenta 

 Say will, I suppose, form a new genus, on account of its peculiar 

 venation. An apparently difiierent species of the same group 

 was found by Mr. Wm. Holden on Accipiter fuscus near San 

 Jose Cal." A study of this specimen in the Museum of Com- 

 parative Zoology shows no character to separate it from specimens 

 referable to 0. confluenta. There are also in the above Museum 

 four specimens from Cuba, one collected by Poey and three by 

 Gundlach. There is in the old collection of the Boston Society of 

 Natural History a specimen marked "Mass." 



The latest and most interesting capture of this species was 

 that of two specimens by Mr. W. S. Brooks at Wilson Mills, 

 Oxford County, Maine, Nov. 4, 1921, from the Canada Jay 



