50 MUSCIDJi. 



vein ending at half of the length ; radial vein ending at a little beyond 

 three-fourths of the length; cubital vein ending near the tip of the 

 costal; prcebracliial vein formiufj mi obtuse angle at the flexure , hardly 

 curved inward from thence to the tip ; discal transverse vein with two 

 almost imperceptible curves, parted by very much more than its length 

 from the border, and by more than half its length from the flexure of 

 the prEebrachial. 



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



70. insuscepta, n. Nigra, cinereo-tomentosa, capite cano, palpis 

 fulvis, thorace nigro-quadrivittato, sciitelh fulvo, alis cinereis, alulis 

 albis, abdomine elliptico, segmentorum marginibus posticis nigris. 

 Long. 4 ; alar. 8 lin. 



Frontalia linear ; bristles of the front descending to half the length 

 of the face; face vertical; epistoma testaceous, slightly prominent. 

 Antennse reaching the epistoma ; second joint more than twice longer 

 than deep ; third lineai", truncated, rather less than twice the length of 

 the second ; fourth very short ; fifth rather long ; sixth stout for half 

 the length, nearly twice the length of the third. Scutellmn imony. 

 Costal vein ending at far above the tip of the wing ; subcostal vein 

 ending at hardly beyond one-third of the length ; mediastinal vein 

 ending at l^eyond half of the length ; radial vein ending at about four- 

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

 pra^brachial vein forming a very obtuse angle at the flexure, which 

 emits a short branch, nearly straight from thence to the tip ; discal 

 transverse vein with two distinct curves, parted by its length from the 

 border, and by much more than half its length from the flexure of the 

 prajbrachial. 



Rare. lu Mr, Desvignes's collection. (E.) 



71. refecta, n. Nigra, cano-tomentosa, capite albo, antennarmn 

 articiilo sexto 2nibescente, thorace nigro-quadrivittato, alis subcinereis, 

 alulis albis, abdomine longi-obconico. Long. 4 ; alar. 8 lin. 



Bristles of the front descending to half the length of the face ; facialia 

 beset with bristles along half the length ; epistoma not prominent ; palpi 

 tawny towards the tips. Antennae almost reaching the epistoma ; third 

 joint much longer than the second, slightly increasing in breadth from 

 the base to the tip, which is almost truncated ; fifth long ; sixth less 

 than twice the length of the third, mlnidety pubescent. Costal vein 

 ending where the prfcbrachial meets it at some distance in front of the 

 tip of the wing ; subcostal vein ending at a little beyond one-third of 

 the length ; mediastinal vein ending at beyond half the length ; radial 

 vein ending at about four-fifths of the length; cubital vein joining the 

 costal near its tip ; pra^brachial vein forming an almost right angle at 

 its flexure, which emits a short branch, near this it is slightly curved 

 inward, and is thence almost straight to its tip ; discal transverse vein 

 with two slight curves, parted from the border by very much more than 



