104 mains; agricultural Experiment station. 1912. 



the 4 remaining joints. Wings grayish hyaHne with centra^, 

 spot and a preapical spot which reaches from apex of Rs to 

 proximacl of tip of Ri, transversely not quite reaching Mi 

 (Fig. 207). Halteres yellow. Ithaca, N. Y. ! 



Female. A single specimen from Price Co., Wis. (W.M.W.) 

 differs in having the dorsum of the thorax and base of the 

 abdomen paler brown. 



37. Mycetophila exusta n. sp. 



Male. Length 3 mm. Plead and antennae brown, palpi, 

 scape and base of flagellum yellow. Thorax brown, humeri 

 yellow. Abdomen dark brown, hypopygium (Fig. 89). Coxa: 

 and legs yellow, tarsi darker, fore metatarsus about .8 as long 

 as the tibia ; middle tibise each with 2 setae on flexor surface; 

 hind tibise each with 2 ranges of setae on extensor surface. 

 Wings grayish hyaline with central spot and an elongate brown 

 diffuse preapical spot longitudinal in posterior extending from 

 tip of Rs to proximad of tip of Ri; apical third of wing grayish 

 with an oval hyaline spot below Rs (Fig. 208). Halteres yel- 

 low. Mass., June; Id., (J.M.A.) Sept., Cal. ! (J.C.B.) May, 

 Nov. 



This species is very similar to Alycothcra fenestrata in wing 

 markings. 



38. Mycetophila jugata n. sp. 

 Male. Length 3 mm. Head and antennae grayish brown, 

 palpi,,, scape and base of first flagellar joint reddish yellow. 

 Thorax reddish yellow, the 3 wide vitt£e of mesonotum, the 

 pleura, and metanotum dark reddish brown, hairs yellow, setae 

 black. Abdomen dark brown, hairs yellow, appressed, 

 hypopygium (Fig. 90). Coxje and legs yellow, tips of hind 

 femora blackish, tarsi dusky ; fore metatarsus about .8 as long 

 as the tibia ; middle tibiae each with 2 setae on flexor surface, 

 hind tibiae each with 2 ranges of setae on extensor surface 

 hind metatarsus subequal in length to the 4 following joint? 

 taken together. Wings grayish hyaline with a large brown 

 central spot, a large paler cloud opposite this behind the cubitus, 

 a i^reapical fascia which extends from the costa to the hind 

 margin of the wing where it is paler, constricted in the middle 

 (Fig. 209). Halteres yellow. Felton, Calif. (J.C.B.). 



