MYCETOPHILA. 11 



Zett. ; Stseg. ; Boss. nitida, Meig. atra ? Mcq. Nigra, palpis an- 

 tennis basi halteribus pedibusque testaceis, alls cinercis immaculatis, fe- 

 moribus posterioribus apice tarsisque nigris. Long. |~ 1 ; alar. 1^-2 lin. 



Black. Palpi testaceous. Antennae sometimes testaceous at the 

 base. Wings grey ; veinlets of the praebrachial areolet forming an 

 obtuse angle ; the hind one about twice the length of the fore one, and 

 nearly as long as the subapical vein before its fork ; anal vein rather 

 less than half the length of the subanal. Halteres testaceous. Legs 

 testaceous ; tarsi black ; posterior femora with black tips ; fore tibias a 

 little longer than the fore metatarsi. 



Note. Meigen, in his sixth volume, has corrected his previous 

 erroneous description of this species. 



Not rare in woods, from June to October. (E. S. I.) 



2. notata, Stann. Observ. Spec. Mycetoph. 17, 18 (1831). Nigra, 

 antennis basi pedibusque flavis, alls macula media fusca, femoribus pos- 

 ticis apice fuscis. Long, f-1 ; alar. 1^-2 lin. 



Black. AutennaB at the base and legs yellow. Wings with a discal 

 brown spot. Hind femora with brown tips. 

 Not common. (E. I.) 



3. binotata, Hal. MSS. Nigra, antennis basi pedibusque flavis, alls 

 macula media et fascia ante apicem fuscis. Long. | 1 ; alar. 1^2 lin. 



Black, with fine pale pubescence. First and second joints of the 

 antennae, and base of the third, dingy yellow. Thorax with brown hairs. 

 Wings yellowish, hyaline, with a brown middle spot occupying the fork 

 of the praebrachial vein and the median vein, and a brown subapical 

 band, which is broader in front; veins brownish ferruginous. Legs 

 dingy yellow; tibiae with brown spurs, their lateral spines rather 

 long, slender, black; tarsi with brownish tips; fore tarsi thrice the 

 length of the tibiae or upwards; fore metatarsus hardly shorter than 

 the tibiae ; hind tarsi nearly longer by half than the tibia?. 



Bare. In Mr. Haliday's collection. (I.) 



In the three preceding species, the head and the mesonoturn 

 form a continuous even curve. 



4. pahidosa? Staeg. Dipt. 265. 40 (1840) ; Zett. Nigro-cinerea, 

 palpis halteribus pedibusque testaceis, alls subcinereis, nebulis duabus 

 subobsoletis, una discali, altera subapicali, femoribus tibiisque apice tar- 

 sisque nigricantibus. Long. 1^; alar. 2 lin. 



Greyish-black. Palpi testaceous. Antennae rather longer than the 

 thorax. Wings sliglilly greyish, very indistinctly clouded about the tip 

 of the prcebrachial areolet and near the tip of the costa ; veinlets of the 

 preebrachia] areolet forming an obtuse angle, the hind one twice the 

 length of the fore one, and about half the length of the subapical 

 vein before its fork ; anal vein short. Halteres testaceous. Abdomen 

 about twice the length of the thorax. Legs testaceous, stout ; tarsi and 

 tips of the femora and of the tibia) blackish. 



