J. R. MALLOCH 155 



or seven bristles, laterad of which there are some hairs in a vertical series; 

 i'rons slightly buccate, width of parafacial at base of antennae about equal 

 to that of third antennal joint, much narrowed below; a few setulae above 

 vibrissa. Acrostichals in about four irregular rows; postsuturals three; 

 sternopleurals 1: 2. Abdomen subovate; fifth sternite with a deep V-shaped 

 notch. Legs slender; hind tarsi longer than tibia; fore tibia with or without 

 median bristle; mid tibia with one or two antero-dorsal and postero-dorsal 

 bristles; hind femur with a few slender posterior bristles on basal half, and 

 four or five bristles on apical half of antero-ventral surface. Veins three and 

 four subparallel apically, the former ending close to wing tip, the latter nmch 

 behind it. Length, 4.75 mm. 



Typc—d"; Mt. Ascutnpy, Vermont, July 11, 1908, ((\ W. 

 Johnson), [B. S. N. H.]. One specimen. 



The pecuHar abdominal markings and vei-y widely separated 

 eyes serve to separate this species from any known to me from 

 this country or Europe. 



Named in honor of the collector of the type. 



Limnophora clivicola sp. n. 



Male. — Black, slightly shining, the siu'face with dense gray pruinescence. 

 Head entirely black, orbits, face, and cheeks with white, almost silvery 

 pruinescence. Anterior half of thoracic dorsum shining brownish black, 

 the sides and posterif)r half gray pruinescent. Abdomen with l^asal half 

 of first visible tergite, a pair of elongate poorly defined spots on next two 

 tergites and a central sj)ot on apical tergite, black, the second and third 

 segments each with a very faintly indicated central vitta between the spots 

 in most specimens. Legs black. Wings clear, slightly brownish apically; 

 veins pale at bases. Calyptrae and halteres yellowish. 



Eyes almost bare, separated by about as great a distance as witlth across 

 posterior ocelli ; interf rontalia almost obliterated at middle ; antennae extend- 

 ing about two-thirds of the distance to mouth-margin; arista with its longest 

 hairs a little longer than its basal diameter; parafacial in profile linear; cheek 

 a littk^ higher than width of third antennal joint, with moderately long bristles 

 along lower margin; a few short bristles above vibrissa (fig. 36). Presutural 

 acrostichals weak, four-rowed; postsutural dorso-centrals, three; prealar 

 absent; lower posterior sternoplevu'al very weak. Fore tibia unarmed at 

 middle and without apical posterior bristle; mid fenun- with a few bristles 

 on basal half of postero-ventral surface; mid tibia with or without a weak 

 antero-dorsal bristle, the postero-dorsal surface witli two or three bristles; 

 hind femur with five or six bristles on apical half of antero-ventral surface, 

 the basal half of posterior surface with setulose hairs, postero-ventral sur- 

 face bare; hind tibia with two antero-ventral and two antero-dorsal bristles, 

 apical antero-dor.'^al bristle weak; mid and hind tibiae longer than their 

 tibiae; jiulvilli slightly longer than claws. Outer cross-vein slightly curved, 

 inner i)roximad of apex of first vein; veins three and four divergent apically; 

 costal thorn very small. 



TH.WS. AM. KNT. SOC, XI.VI. 



