142 NKW NOUTH AMERICAN ANTHOMYIIDAE (DIPTERA) 



,IuiK> 16, (('. W. Johnson) ; 1 9 , Brooklinc, Massachusetts, June 28, 

 (('. W. Johnson); 1 9, Lyme, Connecticut, May 29, 1910, (A. 

 Chaniplain); 2 females, Delaware Water Gap, New Jersey, July 11 

 and 12; 1 9, Riverton, New Jersey, June 22, (C. W. Johnson). 



Thi(>e paratypes are in the collection of Boston Society of 

 Xatui'al History, two in the collection of Illinois Natural Histoiy 

 Survey, and one in the collection of The American Entomological 

 Society. 

 Helina mimetica s|). ii. 



ji'emnle. — Differs from johnsoni. in having the antennae entirely black, 

 and the cross-veins of the winss broadly infuscated. 



Structurally there is no striking difference between this species aiid,/o/)/(.sr>/*/. 

 The lower anterior sternopleural bristle is stronger in the three specimens 

 before me than in johrmmi, and the bristles on the tibiae are comparatively 

 stronger. Length, 8.5 to 9 mm. 



Type.— 9 ; Glen House, New Hampshire, June 13, 1916, fB. S. 

 N. H.]. Paratypes. — Females; Glen House, New Hampshire, 

 ,lmic 14. 1916; North Adams, Massachusetts, June 18, 1906. 

 All taken by (\ W. Johnson. 



Specimens dix'ided between the three collections mentioned 

 utider the ])i'cce(ling species. 



Helina bispinosa sp. n. 



Male. — Black, dtMisely gray jjruinescent. Thorax with three or five black 

 dorsal vittae. Abdomen usually with four black dorsal spots. Legs black, 

 apices of all femora and at least the mid and hind tibiae reddish yellow. 

 Wings clear. Calyptrae white. Halteres yellow. 



Eyes bare, separated by width across posterior ocelli, orbits narrow; longest 

 hairs on arista longer than width of third antennal joint; parafacial in profile 

 nearly as wide as third antennal joint, cheek about one-fifth as high as eye. 

 Presutural acrostichals absent; postsutural dorso-centrals four; prealar 

 bristle minute or absent; sternoplevu'als 2:2. Abdomen subcylindrical, hypo- 

 pygiuin protuberant, not very large; fifth sternite with a very conspicuous 

 bristle on each side near base of cleft, and several other bristles near apex 

 of each process. Fore tibia with one posterior bristle; mid femin- without 

 antero-ventral bristles; mid tibia with one or two antero-dorsal, two postero- 

 flor.sal, one or two postero-ventral bristles; hind femur with six or seven 

 bristles on antero-ventral, and two at middle on postero-ventral surface; 

 hind tibia with one or two antero-ventral and three antero-dorsal bristk^s, 

 the i)ostero-dor.sal surface witli a weak bristle basad of middle. Costal thorn 

 long. Length, G nun. 



7'///>c.— cf ; Waukegan, Illinois, August 24, 1917, (J. \\. Mal- 

 loch), [IllinoisJ. Paratypes. — Males; Sidney, Montana, June 13, 



