152 NFAV NORTH AMKRTCAN ANTIIOMYIIDAE (dIPTERA) 



above- arista almost bare. Thorax with four pairs of postsutiiral dorso- 

 rentrals Abdomen narrowly ovate; fifth sternite with a deep wedge-shaped 

 posterior incision, which is transverse at base, the surface with nimierous 

 small setulae adjacent to basal half of incision, and a few long bristly hairs 

 •ipically. Fore tarsus much longer than tibia; mid femur with some long 

 bristles on basal half of postero-ventral surface; mid tibia without antero- 

 dorsal bristles; hind femur with a series of bristles on antero-ventral surface, 

 those on apical half strong, and long bristly hairs on basal half of postero- 

 ventral surface; hind tibia with two or three antero-ventral, three or more 

 antero-dorsal, and two or three postero-dorsal bristles, the latter short. 



Female.— Much paler than male, the thorax with three indistinct brown 

 vittae, the abdominal spots brown. 



Eyes separated by one-third of the head-width, frons widened anteriorly. 

 In other respects as male. 

 Length, G mm. 



rpypg_^. Mt. Washington, New Hampshire, 4000 feet. 

 July 4, (C. W. Johnson), [B. S. N. H.]. Allotype.— 9 ; Base 

 Station, Mt. Washington, New Hampshire, August 14, 1916, 

 (C. W. Johnson). Paratypes.— d' and 9 ; Nain, Laliradoi-, 

 August 18. 

 Limnophora monticola sj). n. 



;V/u/(.._Similar to the preceding in color, the wings brownish along veins. 

 Differs from uovac-angHnc in having the eyes separated by width across 

 posterior oc(-lh, the incision in fifth sternite not so deep and the hind femur 

 with only three or four strong antero-ventral bristles on apical third, the 

 remainder of that surface unarmed, and the postero-ventral surface without 

 long bristly hairs on basal half. Length, G mm. 



Typc—d"; Mt. Washington, New Hampshir(>, July 8, 1914, 

 (C. "W. John.son), [B. S. N. H.]. 



Limnophora gibsoni s]). n. 



Male. — Similar to nionlicola in color, the wings consi)icuously infuscatiMl, 

 especially basally. 



Eyes separated by l(>ss than width across posterior ocelli; hind femur with 

 more numerous bristles on antero-ventral surface, and with some short setulae 

 on middle of jMistero-ventral surface; inner cross-vein a little before apex 

 of first vein, the penultimate section of fourth vein nearly half as long ;is 

 ultimate; in moulicola the inner cross-vein is just beyond apex of first, and 

 the penultimate section of fourth is onc'-tliird or a little over oiie-thinl as 

 long as ultimate. Length, 0..'i mm. 



Typc.—d; Youghall, New Brunswick, (\-m;i(l:i, July :>, i'.IOS. 

 (A. dil.soii), |('an. N;i1. ('()11.|. 



