Oct.. igi2 Bulletin oj the Brooklyn Entomological Society 7 



subpectinata Will, and its allies, annulicornis End., and schwarzi sp. 

 nov., and the domestica subgroup, with multi guttata sp. no v., and 

 domestica and its races. 



The material studied is the property of the United States 

 National Museum, the American Museum of Natural History, 

 the Entomological Society of Philadelphia, and Cornell Univer- 

 sity; and I am indebted to Mr. Frederick Knab, Mr. John A. 

 Grossbeck, Mr. E. T. Cresson, Jr., and Dr. J. Chester Bradley 

 for the loan of the material. I wish to further express my appre- 

 ciation to Mr. Knab for kind advice and assistance in many mat- 

 ters. 



Key to the American Rhipidise (males only.) 



1 . Antennae of male bipectinated 2 



Antennae of male unipectinated or subpectinated 6 



2. Flagellum with all except the last segment pectinated. (Wings 



with five costal spots; hind tarsi light yellov\^) 



calverti, sp. n. (Costa Rica). 



Flagellum with the first segment simple; one or more terminal seg- 

 ments simple 3 



3. Wings nearly uniformly clouded with blackish; stigma dark. 



(Flagellar segments long, bipectinated; dorsal thoracic stripes 

 not complete; pleural stripe distinct.) 



bipectinata Will.i (Lesser Antilles). 



Wings variegated with spots and dots 4 



4. Wings with the spots confined to the vicinity of the veins. (An- 



tennae black; terminal three or four segments simple.) 



costalis Will. 2 (Lesser Antilles). 



Wings with numerous smaller spots and dots in all the cells 5 



5. Antennae with shorter pectinations; wings greyish with brown spots; 



several marks along costal margin. 



maculata Meig.^ (Holarctic region). 



Antennae with longer pectinations; wings hyaline with reddish- 

 brown dots sprinkled in all the cells; larger costal marks not pres- 

 ent cramptoni sp. n. (North Brazil.) 



6. Antennae of the male unipectinated {uniseriata group) 7 



Antennae of the male subpectinated {domestica group) 8 



7. Thorax brown, gray pruinose; wings pale brownish, a whitish blotch 



in center of the disk; a round brown dot at origin of Rs, fork of 



Rs and tip of Sc; tarsi brown fidelis 0-S.-* (Eastern V . S.) 



Thorax yellow; wings with darker clouds along the anterior margin; 

 apices of wings more clouded; posterior tarsi light yellow. 

 unipectinata WiW.^ (Central America; Lesser Antilles). 



1 Williston, Dipt. St. Vincent; Trans. Ent. Soc. Lond. (1896) 285, pi. 9, 



fig- 54- 



2 Williston, I. c, 286, pi. 9, fig. 56. 



3 Meigen. System Beschreib. (i8i8)i: 153, pi. 5, figs. 9-1 1. 

 * Osten-Sacken. Proc. Acad. Nat. Sci. Phila. (1859) 209. 



5 Williston, /. c. 286, pi. 9, fig. 55. 



