1892.1 ]',)() 



than sides of frontalia, wliich, with tlic face, arc pale grey ; front o-orbital bristles 

 onlj reaching to the second joint of the antenna; ; facialia bare ; antennic with the 

 third joint narrow, and about four t inics the length of tlie second ; arista long and 

 slender, with the basal third thickinied ; palpi black ; thorax wilh four indistinct 

 stripes, the central pair very narrow, the outer ones maeuliforni ; outer dorso-central 

 post-sutural bristles three in number ; scut ell nni grej ; abdomen grey, with a narrow 

 dorsal stripe on the second segment, and a rather indistinct brown triangular patch 

 or spot on each side of the second and third segments, those on the latter being 

 very small ; both discal and marginal seta; present ; wings with apical cross vein 

 nearly straight, and the outer cross one curved ; legs black. This very small species 

 (3 — i mm.) is rare. 



M. RUT [LA, Mgn. 



Yellow-grey ; facial angle nearly straight ; frontal stripe rufous or piceous, 

 rather narrower than the sides of frontalia, which, with the face, are yellowish- 

 white ; antenna; brown, with third joint four times as long as the second, which, 

 with the first, is ferruginous ; arista thickened to rather beyond the middle ; facialia 

 with a few setse at the bottom ; palpi yellow ; thorax with four narrow stripes, the 

 outer pair being broken ; post-sutural outer dorso-central bristles four in number ; 

 scutellum grey, with hinder part luteous ; ealyptra ochreous ; abdomen covered with 

 yellow pubescence, and immaculate, middle segments with both discal and apical 

 setffi ; wings tinged with yellow at the base and on the fore border ; apical cross 

 vein curved ; legs black, with rufous or fulvous tibiae, the hind ones armed on their 

 outer sides with a number of rather short sctse of irregular lengths. This rare 

 species was found by Miss Prescott-Decie at Westerton, by Elgin. 



32— HYPOSTENA, Mgn. [150] 



Got. ch. — Eyes nude, nearer together in males than females; 

 facial angle nearly straight ; fronto-orbital bristles extending to about 

 the end of second antennal joint ; facial bristles sometimes wanting, 

 sometimes extending half way up the facialia ; cheeks narrow and 

 nude ; antennae with the second joint rather short, and the third fully 

 four times as long ; arista sometimes pubescent ; abdomen oblongo- 

 cylindrical, with or without discal setae ; wings with the fourth vein 

 bent in a curve, and apical cross vein ending near the apex of the 

 wing, outer cross vein placed midway between the inner cross vein 

 and the bend of the fourth. The species are mostly small, black, 

 and glabrous. 



1 (2) Facialia bare, frontalia wide 1. procera, Mgn. 



2 (1) Facialia ciliated, frontalia narrow 2. medorina, Schnr. 



H. PEOCEKA, Mgn., Schnr. 

 setiventris ?, iNlcq. 

 incisiiralis ?, Mcq. 

 cylindracea, Ztt. 

 chetignstra ?, Kud. 

 Bright black ; frontalia wide in both sexes, frontal stripe wide and black, sides 



