534 PROCEEDINGS OF THE ACADEMY OF [Oct., 



Holotype, cf, Simmons Woods, Gloversville, Fulton County, New 

 York, altitude 900 feet, June 22, 1916 (Alexander). 



This is the first Eastern species that has the antennae elongated 

 and cell Mi of the wings lacking at the same time. It bears a great 

 resemblance to L. tenuipes Say, a species with cell Mi present and the 

 venational details slightly different. 



The type was taken in a cold woods with decided Canadian floral 

 tendencies, in association with the following Tipulidse: 



Dicranomyia pubipennis, Ormosia monticola, 0. rubella, Erioptera 

 stigmatica, Gonomyia florens, Limnophila toxoneura, L. areolata, 

 L. alleni, L. fuscovaria, L. munda, Adelphomyia ?ninuta, Ula elegans, 

 Rhaphidolabis rubescens, Tricyphona calcar, Tipula oropezoides, 

 T. hermannia and T. monticola. 



I dedicate this species to Thomas Edward, the eminent Scotch 

 naturalist, the story of whose life and struggles 13 in the interests of 

 natural science has always done much to encourage me in this work. 



Limnophila sylvia sp. n. 



Antennae short; cell Mi of the wings absent; thorax with dark 

 stripes on the praescutum; pleura without stripes. 



Male. — Length, 5-5.5 mm.; wing, 6.5-7.6 mm. 



Rostrum brownish yellow, the palpi dark brown. Antennae short, 

 the scapal segments dull yellow, flagellum dark brown; flagellar 

 segments oval. Head brown with a sparse grayish bloom. 



Thorax dull light yellow, the praescutum with three dark brown 

 stripes, the lateral stripes confluent with the median stripe; scutum 

 yellow with the lobes largely dark brown; scutellum yellow; post- 

 notum brownish yellow. Pleura yellow. Halteres pale, the knobs 

 brownish. Legs with the coxae and trochanters dull yellow; femora 

 dull yellow, the tips darker brown; tibiae yellowish brown, tipped with 

 brownish; metatarsi brownish yellow, the remainder of the tarsi dark 

 brown. Wings with a slight grayish tinge; stigma rather indistinct, 

 brownish; veins dark brown. Venation (Plate XXVII, fig. 46): 

 R2+3 rather elongated, about equal to the basal deflection of Cui) 

 cross-vein r at the tip of Ri and situated on R 2 ; deflection of R 4 + 5 

 arcuated, nearer the wing-root than is the r-ra cross-vein; cell Mi 

 absent; basal deflection of Ciii variable in position, at the fork of M, 

 just beyond the fork of M to about one-third the length of the cell 

 1st M s . 



Abdominal tergites dark brown; sternites dull brownish yellow, 



13 Life of a Scotch Naturalist: Thomas Edward, associate of the Linnsean 

 Society, by Samuel Smiles (Harper & Bros., 1877). 



