60 THE CANADIAN ENTOMOLOGIST 



NEW NEARCTIC CRANE-FLIES (TIPULID^, DIPTERA). 



PART IV. 



BY CHARLES P. ALEXANDER, LAWRENCE, KANSAS. 



Family TipulidcB. 

 Sub-family LimnobiincE . 

 Tribe Eriopterini. 



Erioptera (Erioptera) megophthalma, sp. n. 



Allied to E. macrophthalma Loew, E. vespertina O.S., etc.; 

 coloration reddish yellow throughout; antennte with the scape 

 dark brown, the flagellum pale basally, passing into darker to- 

 ward the tip; inner margins of the eyes broadly margined with 

 silvery. 



Male. — Length 5.5. mm.; wing 4.5-5.2 mm. 



Rostrum and palpi dark brown. Antennae with the scape 

 dark brown, the basal flagellar segments light yellow, passing into 

 dark brown toward the tip. Head with the front and the vertex 

 adjoining the inner margin of the eye silvery white; remainder of 

 head yellowish buff with an indistinct brown median line. Eyes 

 of the male very large, contiguous across the ventral portion of 

 the head, purplish black. 



Thorax clear reddish yellow, including the pleura, not bright- 

 ened on the humeral angles of the mesonotal prsescutum (as in 

 vespertina). Halteres pale. Legs golden yellow, the apical tarsal 

 segments darkened. Wings with a pale grayish tinge, the veins 

 pale, the costal region yellow. 



Abdomen light reddish yellow with long, pale hairs; male 

 hypopygium with the ninth tergite quadrangular, the apex squarely 

 truncated, pleurites long, the dorsal appendage straight, pale, 

 tipped with darker. 



Habitat. — Northeastern United States. 



Holotype. — cf, Bools Hillside, Ithaca, N. Y., reared from 

 larva, June 3, 1917. 



Allotopotype.— 9 . 



Paratopotypes. — 25 d^s 9s; paratypes, cf, Westchester 

 Co., Tarrytown, June 9, 1914 (Frost); Fulton Co., Sacandaga 

 Park, June 18, 1916 (Alexander); Herkimer Co., Indian Castle, 

 June 9-13, 1915, (Alexander). 



February, 1918 



