222 THE DIPTEKA-BRACHYCERA OF TA8MAXIA, 



3. Anterior tarsi in male witli first joint enormously 



dilated ; thorax deep black ; wings hyaline. 



NiMiA, Sp. nov. 

 Anterior tarsi in male with first joint not enor- 

 monsly dilated ; thorax brown, 4 



4. Thorax with two conspicuous black stripes; 



femora and tibife blackish, with yellow knees; 



wings brownish ; spring species. Nubila, Sp. nov. 



Thorax with four faint stripes; femora and tibise 



uniform pale brown; wings practically hyaline; 



late autumn species. Mollicella, Sp. nov. 



Besides the above species, two species were described 

 by Walker under the names of Hlldra cert a and Hilara 

 confirmata, but asi I have, unfortunately, been unable to 

 examine Walker's types, I am unable to say to what genn=3 

 they really belong. 



Hilara efficiens, Sp. nov. (Fig. 41a.) 



Thorax brown, with two anterior dark brown stripes, 

 and a broader dark brown stripe on each side ; scutellum 

 grey, with a fringe of black marginal bristes ; abdomen 

 deep brown ; anterior and posterior tibias in male densely 

 pubescent ; wings brown. 



Length. Male, 7-8 mm. ; female, 6 mm. 



Hab. Ma>ngalore, Red Gate. 



Male. Face and front black. Eyes rather widelv sep- 

 arated. Proboscis about equal in length to height of head. 

 Antennae blackish, a little longer than the head, the first 

 and second joints short, the third about twice the length 

 of the first two together, and terminated bv a. long, slen- 

 der style, which is rather more than half its length. 

 Thorax brown, with two anterior, narrow median, and 

 two broad lateral, dark brown stripes; bristles black, 

 dense, but not particularly long ; scutellum grey, with a 

 fringe of eight or more black bristles. Abdomen dark 

 brown, with abundant white lateral pubescence. Legs 

 stout, black ; anterior and posterior tibife. with very dense 

 brown pubescence; anterior tar&i with the first joint con- 

 siderably inflated, oval, and about equal in length to 

 the other four jointsi together. Wings brown, with a dark 

 brown stigma; the mediastinal vein curved up, and meet- 

 ing the costa; cubital fork long, but not very narrow; anal 

 vein fairly long, but not reaching the wing margin. 



Female has the abdomen broader and shorter than in 

 the male, the legs nearly bare, and without any sign of 

 inflation. 



