2$6 NEW YORK STATE MUSEUM 



the terminal segment slightly reduced. Palpi; the first segment 

 rather long, expanded distally, the second slender, tapering at the 

 extremities and with a length about three times its diameter, the 

 third a little longer and more slender than the second, the fourth 

 longer and more slender than the third. Mesonotum dark brown, 

 the submedian lines indistinct. Scutellum dark brown, postscutellum 

 yellowish brown. Abdomen a nearly uniform dark brown, the 

 segments margined posteriorly with rather abundant short, silvery 

 setae. Wings hyaline, costa dark brown, discal spot white, the third 

 vein uniting with costa a little before the basal half, the fifth at the 

 distal fourth, its branch near the basal half. Halteres yellowish 

 basally, silvery white apically. Legs a nearly uniform fuscous 

 brown, the posterior ones a little lighter; claws long, slender, strongly 

 curved distally, the pulvilli as long as the claws. Ovipositor probably 

 about as long as the body, basally with a patch of stout, halberd- 

 shaped processes; terminal lobe long, broad, irregularly rounded, 

 at the base a group of five or six stout hooks. Type Cecid. 



Clinorhyncha eupatoriflorae Felt 



1907 Felt, E. P. New Species of Cecidomyiidae II, p. 6 (Lasioptera) 



1908 N. Y. State Mus. Bui. 124, p. 287, 333 (Lasioptera) 



1909 Ent. Soc. Ont., 39th Rep't, p. 44 



1910 Stebbins, F. A. Springf. Mus. Nat. Hist. Bui. 2, p. 49 (Cecidomyia) 



The midge was reared in late August from yellowish larvae, 

 about 2. mm long, in apparently normal florets of thoroughwort, 

 Eupatorium perfoliatum, taken at Albany, N. Y. 



Male. Length. 1.25 mm. Antennae dark brown, the basal 

 segments pale reddish;- 12 segments, the fifth with a length about 

 one-half greater than the diameter; terminal segment somewhat 

 produced, narrowly rounded- distally. Palpi; the first segment 

 short, stout, narrowly oval, the second one-half longer and more 

 slender; the third a little longer and more slender than the second; 

 the fourth longer and more slender than the third; face pale reddish. 

 Mesonotum fuscous, the submedian lines indistinct. Scutellum and 

 postscutellum reddish. Abdomen reddish. Wings hyaline, costa 

 dark brown, the third vein uniting with costa before the basal half, 

 the fifth joining the posterior margin at the distal fourth, its branch 

 near the basal half; halteres and coxae pale reddish, the femora 

 yellowish at the base, brownish apically; tibiae and tarsi brownish; 

 claws rather long, strongly curved, the pulvilli as long as the claws. 

 Genitalia; basal clasp segment long; terminal clasp segment long, 

 swollen near the basal third; dorsal plate short, broad, deeply and 

 triangularly emarginate; ventral plate short, broad, truncate. Harpes 

 long, stout, tapering, dentate. 



Female. Length 1.5 mm. Antennae sparsely haired, dark 

 brown, basal segments pale reddish; 11 segments, the fifth with a 

 length about one-fourth greater than the diameter; terminal segment 

 produced, tapering distally to a narrowly rounded apex. Palpi; 



