ORPIINEPHILA. 265 



two joints (first globose ; second ovate, with a terminal arista, which 

 is a little longer than the first and second together), bnt under a good 

 lens they are found to be ten-jointed ; the first thickest, globose ; 

 second, third, and fourth compact into an oval mass ; the rest slender ; 

 fifth short ; sixth and following, to the tenth, linear, pubescent ; tenth 

 with two longer hairs near the tip. Thorax robust, gibbons ; scutellum 

 of moderate size. Wings oblong, with an obtuse anal angle ; no dis- 

 tinct axillary lobe ; the ambient vein faint round the hind margin ; of 

 the longitudinal veins two end in the costa, two about the apex, three 

 in the hind margin ; there is an areolet closed before the middle of the 

 wing, with very irregular outward limit ; it is divided longitudinally by 

 an obsolete vein (the first part of the prajbrachial vein), and represents 

 the confluent brachial areolets (nearly as in BoUlopJdla) . Taking the 

 mediastinal vein to be obsolete, and the first longitudinal vein ending 

 before the middle of the costa to be the subcostal, we shall have a 

 simple radial ending beyond the middle of the costa, and a simple cu- 

 bital ending near the apex of the wing, these two connected by a per- 

 pendicular veinlet beyond the end of the prajbrachial areolet ; three 

 simple externo-medial veins, two from the end of the prsebrachial, one 

 from the pobrachial areolet ; subanal vein produced from the posterior 

 apical angle of this last areolet, running to the margin not far beyond 

 the anal angle ; anal and axillary veins very faint or obsolete ; prtcbra- 

 olual areolet longer than the pobrachial, but almost confounded with 

 it. Halteres elongated ; club rather large. Abdomen with seven seg- 

 ments, nearly cylindrical, moderately thick, a little narrower than the 

 thorax, and about twice its length. Legs simple, bare, unarmed, of 

 moderate and nearly equal length ; coxje short ; tibiaj without spines ; 

 tarsi rather long, the foremost much longer than the tibia ; penultimate 

 joint shortest, emarginate at the tip, nearly obcordate. Ungues curved, 

 simple, acute. Onychia dilated. Erapodium inconspicuous. Male. 

 With a double forceps, the outer very stout, two-joiuted ; first joint 

 broad, subovate ; second slender, culthiform, acute ; inner forceps slen- 

 der, strongly incurved, armed at the tip with an inflected claw, and 

 with a smaller spine inside, some way before the tip. Fetn. Tentacles 

 of the vagina- broad, rounded at the tip. 



1. testacea, Ruthe, Isis, 1831. 1211 (1831); Loew; Mcq.; Meig.; 

 Zett., — (hvia, Hal. — ohscura, Zett. Picea, palpis antennisque nigris, 

 alis cinereis, pedibus testaceis. Long. \\ ; alar. 4 lin. 



Pieeous. Pal])i and antenncc black. Wings grey ; veins black. Hal- 

 teres and legs testaceous. 



Not common ; frequents tlie shady banks of streams. (E. I.) 

 "Connor hill, near Dingle, almost one thousand feet high; not 

 seen'highei."— Hal. MS8. 



VOL. IV. 2 M 



