I08 MAINE AGRICIII,TURAI, ExPERlAlENT STATION. I912. 



50. Myceiophila plebeia Walker. 



List of Dipt. I. 100. 1848. 

 Head black ; palpi tawny ; feelers black, yellow at the base ; chest 

 tawny with three broad black stripes which occupy nearly all the back 

 and are united behind ; the middle one is much in advance of the other 

 two; abdomen wanting; hips and thighs pale yellow; shanks dull pale 

 tawny; feet brown; wings slightly gray; veins brown; poisers yellow. 

 Length of body 3.5 mm. St. Martin's Falls, Albany River, Hudson's 

 Bay. 



51. Mycetophila obscura Walker. 



List of Dipt. L loi. 1848. 

 Body brown; head yellow beneath; eyes black; palpi yellow; feelers 

 brown, yellow at the base ; chest with a tawny stripe forked in front 

 on its hinder part ; scutcheon and breast yellow ; abdominal segments 

 yellow at the base ; legs yellow ; hips very pale yellow ; feet dull yellow ; 

 wings colourless ; veins brown ; poisers yellow. Length of the body 

 3 mm. St. Martin's Falls, Albany River, Hudson's Bay. 



52. Mycetophila despecta Walker. 



■ List of Dipt. I. loi. 1848. 

 Head and palpi brown ; eyes black ; feelers brown, yellow at the base ; 

 chest ferruginous, reddish brown on the disk; abdomen brown; ventral 

 segments and hind borders of dorsal segments ferruginous ; legs yellow ; 

 feet brown; wings colourless; veins tawny; poisers yellow. Length of 

 body 3 mm. St. Martin's Falls, Albany River, Hudson's Bay. 



ni M! ' ; i . ■ 



53. Mycetophila niibila Say. 



Journal Ac. Sc. Phil. VI. 153. 1829. 



Dusky ; wings immaculate ; feet whitish. Inhabits Indiana. Body 

 dusky, brownish; antennae first and second joints yellowish; wings 

 hyaline ; immaculate ; poisers whitish, capitulum dusky before the tip ; 

 abdomen slender, gradually enlarging to the tip ; tergum with the tips 

 of the segments pale ; anal segments pale ; feet whitish, dusky towards 

 the tips; spines 1-3 the length of the first tarsal joint. Length 3-20 

 inch. Belongs to Meigens 5th Division. 



54. Mycetophila sericea Say. 



Long's Exped. App. 365. 1824. 

 Male and female. Length over 4 mm. Scape yellow, flagellum 

 brown ; palpi yellow. Head blackish with yellowish sheen. Pleura yel 

 lowish, mesonotum fuscous with whitish silky sheen. Abdomen deep 

 brown, posterior margins of the segments yellow broadened at the sides 

 in the form of triangular spots. Wing slightly yellowish with brown 

 veins. Course of veins as in Plate 9, Fig. 18, in Meigen's Syst. Beschr. 

 I. Halteres and legs pale yellowish with brown tarsi and spurs. "N. W. 

 Terr." Perhaps Allodia. 



