176 NEW NORTH AMERICAN ANTHOMYIIDAE (dIPTERa) 



This species reseni))les uni color Stein, but may be sepuraleil 

 from it and allied species by the armature of the fifth sternite. 



Pegomyia unguiculata sp. n. 



■l/„'^,.__Bla(.k, sliiiiins, with moderately dense grayish pruinescence. Head 

 t)lack, parafacials yellowish in front at base of antennae; antennae black; 

 palpi yellowish testaceous. Thorax indistinctly vittate. Abdomen with a 

 rather indistinct black central vitta on second tergite, and a large subtri- 

 angular black mark on third and another on fourth; hypopygium glossy 

 black; fifth sternite glossy brownish black. Legs yellowish testaceous, fore 

 femora above, and mid and hind femora on apical third above slightly brown- 

 ish; tarsi fuscous. Wings clear, veins brown. Calyptrae and halteres yellow. 



Eyes separated by not more than width of anterior ocellus; third antennal 

 joint about twice as long as second, and three times as long as height of check; 

 arista almost bare; parafacial at base of antennae not as wide as third an- 

 tennal joint, much narrowed below. Thorax with two pairs of widely sep- 

 arated presutural acrostichals, between which there are a few hairs; prealar 

 very small ; post humeral duplicated ; scutellum with a few hairs on disc and 

 a number on lateral margins; sternopleurals 1:2; many hairs surrounding 

 .stigmatal bristle. Abdomen depressed; second tergite (first visible) longest, 

 the others becoming progressively shorter to fifth; hypopygium larger than 

 usual, the basal segment with numerous long bristly hairs; fifth sternite 

 with the processes as shown in figure 40. Fore tibia with or without an antcro- 

 dorsal and a jiosterior bristle beyond middle; mid tibia with bristles as in 

 ])receding species; hind femur with a series of rather irregular widely si)accd 

 bristles on antero-ventral surface, and another one of shorter bristles on basal 

 three-fifths of postero-ventral; hind tibia with one or two antero-ventral, 

 three antero-dorsal and two postero-dorsal bristles. Wings as in uiticolor 

 Stein. Lower calyptra slightly protruded. Length, 4.5 to 5 mm. 



Type. — cf ; Lake Louise, Alberta, Canada, July 15, 1908, 

 (C. S. Minot), [B. S. N. H.]. Paratypes. — Seven males, topo- 

 typical. 



This species may be readily distinguished from any of its allies 

 by the ])eculiar fifth abdominal sternite. 



Pegomyia labradorensis sp. n. 



Male. — Reddish testaceous, shining. Orbits and f)arafacials l)lackene(_l 

 except anteriorly; third antennal joint largely brown; palpi yellow. Thorax 

 with a median fuscous vitta. Abdomen darker than thorax, with a dorso- 

 central scries of reddish l)rown elongate spots. Legs reddish testa('(M)Us; 

 tarsi fu.scous. Wings yellowish, veins brown, (jalyptrac and lialh'ies 

 yellow. 



Eyes separated by about the width between ])osterior ocelli; iiarafacial 

 at base of antennae about as wide as tl)ird anteniuil joint, a little narrowed 

 below; cluH^k a little higher than width of third antennal joint, with a series 



