DIPTERA. 395 



tip, the middle one in advance ; veins black, tawny in a spot of that colour 

 along the fore border near tbe base. Length of the body 4 5^ lines ; of the 

 wings 9 lines. 



Brazil. 



CaLOBATA ? CONTKACTA. 



Nigra, ohscum ; caput thoracis lonyitudine, facie albida ; antenna picece ; 

 tJiorax rubustus, subcompressus ; abdomen lineare, compressum, seg- 

 nientornm inarginibus poslicis argenteis ; tarsi antici laliores ; alee 

 limpidcc, parvce. 



Black, not shining : head as long as the chest, a little longer than 

 broad; crown striated ; face whitish ; epistoma slightly prominent: mouth 

 pitchy : feelers pitcl^; third joint long-conical, much longer than the first 

 and second ; sixth bare, very slender : chest and abdomen with a slight 

 hoary tinge : chest stout, slightly compressed : abdomen linear, com- 

 pressed, much longer than the chest and al)out half its breadth : a silvery 

 band along the hind border of each segment from the first to the third : 

 legs rather long and slender ; fore-feet rather broad : wings colourless, short 

 and narrow ; veins black, pitchy at the base : halteres pitchy. Length of 

 the body 3 lines ; of the wings 4 lines. 



East Indies. 



Calobata? bicolor, Mas et Fcem. 



Nigra; caput alho-iomentosum ; aritenna; ferruginem; abdomen basi et 

 snblus fulvum, ffcmina: apice attenuatum ; pedes flavi, tibiis posterio- 

 ribus hasi nigris, tarsis 7iigris basijlavis ; alee subcinerete,antice ful- 

 I'escentes, apice subfusca. 



Black, shining: head with a shining white covering, clothed beneath 

 with white hairs ; face yellow in front ; epistoma whitish : mouth yellow ; 

 palpi tawny: feelers pale ferruginous; third joint almost conical, much 

 more than twice the length of the second ; sixth black, pubescent, slender, 

 much more than twice the length of the third : sides of the breast tinged with 

 white: abdomen longer and narrower than the chest, tawny towards the 



