32 MUSCID^. 



sixth. Scutellum tawny. Wings slightly grey ; praebrachial vein form- 

 ing an obtuse angle at its flexure, near which it is very slightly curved 

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

 almost straight behind, very slightly curved outward in front. Alulae 

 white. Abdomen subovate, broader than the thorax, testaceous on 

 each side towards the base. Legs testaceous ; coxse and femora black. 

 Not common. (E.) 



7. csesia, Fal. Msc. 27. 55 (1810); Meig. ; Zett. Nigra, cinereo- 

 tomentosa, capite cano, palim nigris, thorace nigro-quadrivittato, alis 

 cinereis, alulis albis, abdomine subtessellato. Long. 5 ; alar. 10 lin. 



Frontalia black, linear ; bristles of the front descending hardly lower 

 than the base of the anteunse ; face vertical ; facialia without bristles. 

 Pal2>i Maclc. Antennfe reaching the epistoma ; second joint full twuce 

 longer than deep ; third linear, rounded at the tip, a little longer thau 

 the second ; fourth and fifth distinct ; sixth stout for more than half 

 the length, a little less thau twice the length of the third ; subcostal 

 vein ending at full oue-third of the length of the fore border ; medias- 

 tinal vein ending at more than half the length of the wing ; radial vein 

 ending at beyond five-sixths of the length ; cubital vein joining the 

 costal very near its tip ; praibrachial vein forming a hardly obtuse angle 

 at its flexure, which emits a very short branch, curved inward from 

 thence to its tip ; discal transverse vein with two distinct curves, parted 

 from the hind border by less than its length, and from the flexure of 

 the prfebrachial by less than hah' its length. 



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



8. detracta, n. Nigra, cinereo-tomentosa, capite eano, paipisfnl- 

 vis, antennurum articulo tertlo secundo paullo longiore, thorace nigro- 

 quadrivittato, alis cinereis, alulis albidis, abdominis lateribus rufis. 

 Long. 4^ ; alar. 11 lin. 



Prontalia black ; bristles of the front hardly descending lower than 

 the base of the antennas ; face vertical ; facialia bristly along one-fourth 

 of the length. Palpi tawny. Antennae not reaching the epistoma ; 

 second joint full twice longer than deep ; tldrd sublinear, rounded at 

 the tip, a little longer than the second ; sixth very minutely pubescent, 

 stout towards the base, nearly twice the length of the third. Thorax 

 with four slender stripes. Costal vein ending at a short distance in 

 front of the tip of the wing ; subcostal vein ending at about one-third 

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

 ending at a little beyond five-sixths of the length ; cubital vein joining 

 the costal near its tip ; prtcbrachial vein forming a right angle at its 

 flexure, near which it is curved inward, and is thence straight to the 

 tip ; discal transverse vein with two distinct curves, parted by half its 

 length from the hind border, and by a little less than half I'roni the 

 flexure of the praebrachial. Abdomen slightly tessellated. 



"Rare. In Mr. Dcsvignes's collection. (K.) 



