The Cjiane-Flies of New York — Part II 867 



brown in color. The abdomen is depressed, with sharp lateral margins. 

 The abdominal armature is described as consisting of small hairs instead 

 of slender spines as in the American species of this subgenus. 



In the Nearctic fauna, the subgenus Phylidorea includes Limnophila 

 adusta, L. similis Alex., L. novae-angliae Alex., L. lutea Doane, L. terras- 

 novae Alex., L. costata Coq., L. fulvocostalis Coq., L. insularis Johns., and 

 probably other western species. It seems quite possible, hioreover, that 

 the species allied to Limncphila lenta O. S. also belong here. 



Limnophila (Phylidorea) adusta 0. S. (supposition) 



1859 Limnoyhila adusta 0. S. Proc. Acad. Nat. Sci. Phila., p. 235. 



A larva of a crane-fly that is almost certainly a member of this genus 

 was taken at Ithaca, New York, on May 30, 1917, in company with a 

 Ulomorpha (No. 88-1917). An unknown pupa was taken in the sedge 

 association on the Bool hillside, Ithaca, on June 4, 1917. It was not 

 reared and its identity can only be surmised, but there can be little doubt 

 of its relationship with Phylidorea. 



Larva. — Length, 8.6-9 mm. 

 Diameter, 0.8 mm. 



Coloration a deep saturated orange-yellow, the body with silky iridescent reflections. 



Body a little narrowed at both ends. Integument with a long, appressed, golden 

 pubescence. Numerous long setae and pencils of hairs on body, usually at about midlength 

 of, or on posterior half of, the segments; posterior margin of each segment elevated into a 

 prominent transverse ridge of hairs. Spiracular disk surrounded by four lobes, ventral 

 pair about twice length of lateral pair; ventral lobes with a rather narrow, dark brown line 

 on inner face; outer margin fringed with very long dark hairs which are somewhat paler 

 at their bases, this fringe of hairs longest at tips of lobes, where it reaches a length of about 

 eight or ten times length of lobe; hairs shorter toward base of lobe; a stiff sensory br'stle 

 on outer face of lobe, rather far back from tip; lateral lobes similar, with the fringe of hairs 

 yellow and about twice length of lobes. Spiracles of medium size, directed toward each other. 

 Anal gills four, fleshy, pale in color, posterior pair longer than anterior pair. 



Head capsule of hexatomine type, the dorsal plates narrowly interrupted on mid-dorsal 

 line behind clypeal-labral sclerite. Labrum very large, anterior margin provided with 

 eight or ten papillae and setae. Epipharyngeal region having a large, median, circular 

 area which is slightly elevated and bears two bisegmented cylindrical papillae. IMental 

 region as usual in the genus, consisting of three hinged bars forming three sides of a rectangle, 

 the anterior transverse bar delicately grooved. Antenna two-segmented, second segment 

 narrower than first and bearing at its tip an elongate sculptured papilla and a long seta. 

 Mandible of hexatomine type, a powerful curved hook, at about midlength of which is an 



