50 MYCETOPHILID.E. 



latter, forming an obtuse angle near its base, and after an inward curve, 

 ending at about four-fifths of the length; cubital proceeding from tlio 

 angle of the radial, straight from thence to its end, which is a little in 

 front of the tip of the wing ; subapical emerging from the pobrachial 

 transverse veinlet, forked beyond half its length ; subanal forked, form- 

 ing the praebrachial and the pobrachial ; anal and axillary incomplete ; 

 humeral veinlet near the base. Areolets thirteen the humeral, the 

 radical, the subcostal, the radial, the prsebrachial, which is united to the 

 pobrachial, the cubital, the subapical, three externo-medial, the anal, 

 the axillary and the subaxillary one ; the three last are incomplete. 

 Posterior margin forming a curve at beyond twice the length of the 

 humeral areolet from the base. Halteres short. Abdomen much 

 longer than the thorax. Legs rather short and stout, minutely pubes- 

 cent ; tibia without spines, their spurs very minute ; tarsi not longer 

 than the tibiae. 



The only British species of this genus lives in woods, and is 

 less active than the other Mycetopliilida. The larva feeds on 

 fungi. 



1. pallipes, Meig. ! Zw. i. 230. 1. pi. 8. f. 10 (1818); Mcq. ; 

 Winn. Nigra, alis sublimpidis, halteribus pedibusque testaceis, abdo- 

 mine piceo. Long. 2 ; alar. 4 lin. 



Black. Wings almost limpid. Halteres testaceous. Abdomen pi- 

 ceous. Legs testaceous. 



Bare. Inhabits decayed trunks of trees. (E. I.) 



Genus XII. SCIARA. 



SCIAEA, Meig. Kl. Zw. vi. (1830); Zett. ; Staeg. Tipula p., L. ; 

 F. E. S.; Geoff.; Gmel. Chironomus p., F. Sciara p., Meig. Zw. i. 

 F. Hirtea p., F. S. A. Molobrus, Latr. ; Mcq. 



Corpus parvum, saepissime nigrum. Caput parvum. Proboscis pro- 

 minula. Labium bilobum. Oculi emarginati. Ocelli tres, medius 

 minimus, antepositus. Palpi triarticulati, incurvi. Antenna IQ-ar- 

 ticulata, subfiliformes. Thorax subellipticus. Aloe angustse, imma- 

 culate ; vena subcostalis brevis ; cubitalis et subanalis simplices ; sub- 

 apicalis furcata. Halteres longiusculi. Abdomen elongatum. Pedes 

 vix elongati ; tibiae non spinosce, calcaribus breviusculis. Mas. An- 

 tennae corpore vix breviores. Abdomen apice bilobum. Fcem. An- 

 tennas corporis dimidio non longiores. Abdomen apice attenuatum. 

 Body small, very generally black. Head small. Proboscis some- 

 what prominent. Labium bilobed. Eyes emarginatc. Ocelli three, 

 the middle one in front, very small. Palpi three-jointed, curved down- 

 ward. Antenna sixteen-jointed, nearly filiform. Thorax nearly ellipti- 

 cal. Wings more or less narrow, blackish or limpid, not spotted ; sub- 



