A Systematic Study of the Anthomyiinae of New York 31 



• 



Head, in profile, similar to that of inornata Stein. Third antennal segment narrow, its 

 length equal to twice its breadth. Thorax with acrosticals weak and setulose; posthumeral 

 bristle not duplicated. Pra long, equal in length to the following bristle. Sternopleurals, 

 1 : 2, all of equal size. Abdomen elongate, longer than thorax, with traces of a dorsocentral 

 vitta. Tore tibia with two or three dorsal and one median posteroventral bristle; mid femur 

 with two anteroventral and two or three posteroventral bristles; mid tibia with one antero- 

 ventral, three anterodorsal, three posterodorsal, and three posteroventral bristles; hind femur 

 with a complete series of anteroventral bristles and an interrupted series of posteroventral 

 bristles; hind tibia with three anteroventral, four anterodorsal, and three posterodorsal 

 bristles; posterior surface with one or more appressed setulae. Costal thorn prominent. 

 Upper calyptra covering the lower. Length, 7 mm. 



Localities.— 1 $ , Ithaca, June 22, 1920; 1 6 , Mount Marcy, July 13, 1918 (collected by 

 W. T. M. Forbes). 

 Allotype. — In author's collection. 



Hylemyia pluvialis Malic ch 



1918 Hylemyia pluvialis Mall. Canad. Ent., vol. 50, p. 310. 



1920 Hylemyia aniseta Stein. Arch. Natiu-gesch., (1918) vol. 84, part 9, p. 77. 



Female. — Yellowish gray, with dense, almost lemon yellow, pollen. Parafacials and cheeks, 

 in profile, with whitish pruinescence and dark reflections. Parafrontals yellowish gray. 

 Antennae and palpi black. Thorax and abdomen without vittae. Legs rufous, the femora 

 entirely infuscated. Tarsi blackish. Wings shghtly yellowish; veins yellow. Calyptrae 

 whitish. Halteres yellowish white. 



Head with cruciate bristles present. Antennae nearly reaching oral margin; arista pubes- 

 cent. Thorax with only a few accessory setulae; acrosticals and prealar bristles absent; post- 

 humeral bristles not duplicated. Sternopleiu-als, 1 : 2. Abdomen with the usual chaetotaxy, 

 with no conspicuous bristles as in male. Fore tibia with one dorsal and one median postero- 

 ventral bristle. Mid femur with anteroventral surface bare, two or three basal posteroventral 

 bristles; mid tibia with one weak anterior, two anterodorsal, two posterodorsal, and two 

 weak posteroventral bristles. Hind femur with four or five anteroventral bristles along 

 distal half; posterior surface bare, except for two apical bristles; hind tibia with three 

 anteroventral, four anterodorsal, and three posterodorsal bristles; posterior surface with- 

 out setulae. Costal thorn prominent, long; the costal hairs with a series of erect robust 

 setulae; m-cu cross-vein straight and erect. Upper calyptra covering the lower. Length, 

 5.5 mm. 



Localities.— 1 6 , 19, McLean Bogs (near Ithaca), July 2-3, 1904; 46, July 3, 1920; 

 1 6 , August 6, 1921; 2 ? , August 8, 1921. 9 specimens: 6 males, 3 females. Figures 19, 58, 

 116, 172, on plates in this memoir. 



Allotype. — In the Cornell University collection, Ithaca, New York. 



In the specimens before the writer, there is a variation in the infusea- 

 tion of the legs. The femora vary in having all pairs completely infuscated, 

 or only the first pair. The tibiae are rufous, with varying degrees of 

 infuscation. 



Hylemyia pullula Zetterstedt 



1826 Anthomyia longula Meig. nee Fall. Syst. Beschr., vol. 5, p. 103, no. 36. 

 1830 Delia liturata Rob.-Desv. Essai Myod., p. 575, no. 12. 

 1830 Delia dnerascens Rob.-Desv. Essai Myod., p. 575, no. 13. 

 1830 Delia vernalis Rob.-Desv. Essai Myod., p. 576, no. 14. 

 1845 Aricia pullula Zett. Dipt. Scand., vol. 4, p. 1449, no. 60. 

 Locality.— 1 6 , Ithaca, May 24, 1922 (collected by L. S. West). 



