56 MUSCID^E. 



third of the length of the face ; face vertical ; facidlia bristly for two- 

 tJdrds of the length ; epistoma not prominent ; palpi black. Antennae 

 reaching the epistoma ; second joint much longer than deep ; third 

 linear, slightly truncated, about thrice the length of the second ; fourth 

 very short ; fifth rather long ; sixth bare, stout for more than one-third 

 of the length, longer than the third. Costal vein ending at some little 

 distance in front of the tip of the wing ; subcostal vein ending at a 

 little before one-third of the border ; mediastinal vein ending at a little 

 before half of the border ; radial vein ending at a little beyond four- 

 fifths of the border ; cubital vein ending near the tip of the costal ; 

 praBbrachial vein forming an obtuse angle at the tip, very slightly curved 

 inward from thence to the tip ; discal transverse vein nearly straight, 

 parted by much more than its length from the flexure of the prsebrachial 

 and from the border. 



Eare. In Mr. Desvignes's collection. (E.) 



84. longircstris, Meig. Zw. iv. 315. 132 (1824) ; Mcq. Nigra, 

 cano-tomentosa, proboscide elongata, palpis fulvis, antennis basi ferru- 

 gineis, thorace nigro-quadrivittato, scutello apice fulvo, alis subhyalinis, 

 alulis albis, abdomine fulvo tessellato, vitta apiceque nigris. Long. 4 ; 

 alar. 8 lin. 



Frontalia deep black, linear ; bristles of the front descending to one- 

 third of the face ; facialia without bristles ; epistoma slightly promi- 

 nent ; proboscis much longer than the head. Antenna? reaching the epi- 

 stoma ; second joint twice longer than deep ; third sublinear, slightly 

 truncated at the tip, very much longer than the second ; fourth and 

 fifth very short ; sixth minutely pubescent, very much longer than the 

 third. Costa ciliated to the tip of the subcostal vein, where it is armed 

 with a spine. Costal vein ending at a little in front of the tip of the 

 wing ; subcostal vein ending at about one-third of the length ; medias- 

 tinal, prasbrachial, and pobrachial veins armed with spines towards the 

 base, the first ending at before half the length ; radial vein ending at 

 about five-sixths of the length ; cubital vein ending very near the tip 

 of the costal ; prasbrachial vein forming a very obtuse and not sharply- 

 defined angle at its flexure, from whence it is straight, with the excep- 

 tion of a slight curve near its tip ; discal transverse vein with a slight 

 inward curve, parted from the border by more than its length, and by 

 less from the flexure. 



Very rare. In Mr. Desvignes's collection. (E.) 



85. fulgens, (Hoffm.) Meig. Zw. iv. 259. 34 (1824); Zett. 

 Heraclei, Mcq. Nigra, cano-tomentosa, capite albo, thorace nigro- 

 quadrivittato, scutelli apice ferrugineo, alis subcinereis basi subluridis, 

 alulis albis, abdomine subtessellato, lateribus basi tibiisque ferrugineis. 

 Long. 5 ; alar. 10 lin. 



Frontalia piceous, striated, concave ; bristles of the front descending 

 to one-third of the face ; epistoma very prominent. Antennae reaching 



