186 CHlBONOMIDjE. 



rest whitish. Halteres whitish. Abdomen pale brown. Legs testa- 

 ceous, slender ; tarsi and tips of the tibiae browii. 

 Eare. (E.) 



153. migax, n. Cervinus, alis limpidis pubescentibus, venis hal- 

 teribusque albis, illis apud costam testaceis, venula transversa nigra, 

 abdomine albido suturis fuscis, pedibus albidis. Long. 2^ ; alar. 4 lin. 



Fawn-colour. Wings limpid, pubescent ; transverse veinlet black ; 

 costal, radial, and cubital veins pale testaceous, the rest white. Hal- 

 teres white. Abdomen whitish, pubescent ; sutures of the segments 

 brown. Legs whitish, pubescent. 



Nearly allied to C. pallidulus, Meig. Rare. (E.) 



154. elegans, Meig. ! Zw. i. 48. 63. pi. 2. f. 7 (1818). crassipes, 

 Panz. eestivus, Curt. B. E. 70. hirtipes, Mcq. ; Meig. Zw. vii. Tes- 

 taceus, thorace producto conico disco aut vittis tribus fulvis lateribus 

 nigro-guttatis, alis sublimpidis nonnunquam nigro-trimaculatis, venis 

 albis apud costam testaceis, halteribus albidis, abdomine punctiunculis 

 nigris, pedibus validis pilosissimis. Long. 3-3^; alar. 5-6 lin. 



Testaceous. Vertex tawny. Thorax prolonged and conical in front, 

 with three tawny stripes and with a row of black dots on each side. 

 Wings nearly limpid, very slightly testaceous along the costa, with three 

 blackish spots, one near the hind border, the other two in the disc at 

 two-thirds of the length ; costal, radial, and cubital veins pale testa- 

 ceous, the rest white. Halteres whitish. Abdomen with black punc- 

 tures. Legs stout, very pubescent ; joints of the tarsi with brownish 

 tips. Var. ft. Disc of the thorax tawny. Wings without blackish 

 spots. 



Rare. Inhabits woods. (E.) 



155. stercorarius, D. G. Ins. vi. 149. 22 (1781); Schr. ; Meig. ; 

 Mcq. ; Zett. ; Gim. ; Stseg. chiopterus, Meig. Kl. Zw. Mas et Fcem. 

 niger, alis limpidis, venis albidis apud costam nigris, halteribus fuscis, 

 abdomine pubescente, pedibus piceis subpubescentibus. Long. 1^2; alar. 

 3-4 lin. 



Male and Fern. Black. Wings limpid ; costal, radial, and cubital 

 veins blackish, the rest whitish. Halteres brovon. Abdomen pubescent. 

 Legs piceous, minutely pubescent. Male. Antennae with black plumes. 



Generally distributed. (E. S. I.) 



156. aterrimus, Meig. Zw. i. 47. 59 (1818) ; Gim. ; Stag. ; Zett. 

 Mas et Fcem. ater, alis limpidis, venis albidis apud costam nigricantibus, 

 halteribus nigris, abdomine pilosissimo, pedibus pilosis, femoribus cras- 

 siusculis. Long. 1~- 2 ; alar. 3-4 lin. 



Male and Fern. Deep black. Wings limpid; costal, radial, and cu- 

 bital veins blackish, the rest whitish. Halteres black. Abdomen very 

 hairy. Legs hairy ; femora rather thick. Male. Antennae with black 

 plumes. 



Generally distributed. (E. S. I.) 



