THEREVA. 75 



paler than those of the male. Knobs of the halteres brown towards 

 the base. Abdomen gilded above, thinly clothed with tawny hairs ; fore 

 borders of the segments black ; tip black, shining, armed with short 

 tawny spines. 

 Not rare. (E.) 



2. fulva, Mg. kl. i. 215. 5 (1804); Mq. ; Lw. Mas. Fulvo- 

 tomentosa, abdomine immaculate, pilis nigris ante incisuras null-is . 

 Foem. Breviter fulvo-tomentosa, abdomine immaculato, segmentis septimo 

 et octavo atri* nifidis. Long. 5^ ; alar. 10 lin. 



Fern. Body clotJo-d n-ith bright taicny hairs. Head tawny, beset 

 with a few black bristles behind and above the antenna?, having in 

 front of the crown a shining black band whose fore border is notched. 

 Mouth ferruginous. Antenna) grey ; first and second joints beset 

 with black bristles. Thorax dark fawn-colour ; scutellum paler. Wings 

 pale grey, slightly tinged with pale brown along the borders of the 

 veins, and with tawny along the fore border. Halteres tawny. Abdo- 

 men tawny; hind borders of the third and following segments black, 

 shining ; underside grey, ferruginous and shining at the tip ; hind 

 borders of the segments yellow. Legs tawny, beset with black bristles ; 

 femora grey, clothed with tawny hairs ; tips of the tibia? and of the 

 tarsi black. 



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



3. cincta, Mg. zw. ii. 117. 2 (1820). Nigra, alts subcinereis, 

 abdomine maculi* trigottix ccrvinis bivittato, tibiis fill vis, tarsis basifulvis ; 

 Mas. abdomini* xt'ijmentorum marginibns posticis auratis ; Foem.thorace 

 cervino cinereo-triv-itlato, scutello cinereo-maculato, abdominis segmento- 

 niHi iiiarginibux po&ticis fidvis. Long. 4-6; alar. 7-11 lin. 



Black, clothed with tawny hairs. Head whitish, clothed with yellow 

 hairs ; hind part, crown, and sides of the epistoma clothed with black 

 hairs. First and second joints of the antennae clothed with black 

 hairs. Sides and hind part of the thorax beset with some black 

 bristles. Wings pale grey ; veins black, tawny at the base and along 

 the fore border. Halteres tawny, with black knobs. Abdomen with 

 a fawn-coloured spot on each side of every segment. Legs black, 

 beset with black bristles ; femora clothed with tawny hairs ; tibia3 

 tawny, with black tips ; first and second joints of the tarsi tawny at 

 the base ; onychia tawny. Male. Hind borders of the abdominal 

 segments gilded. Fern. Two black shining united spots on the crown. 

 Thorax fawn-colour, with 3 grey stripes ; a grey spot on the scutellum. 

 Hind borders of the abdominal segments fawn-colour. 



Not rare. (E.) 



4. funebris, Mg. zw. ii. 121. 8 (1820). lugubris, Mg. kl. Ni- 

 gra, Jlavo-hirta, alls limpidis, pedibus fulvis, femoribus fuscis. Long. 

 3i ; alar. 6 lin. 



Male. Black, clothed with long yellow hairs. Head clothed with 



