2i^2 MAINR ACRICULTURAL I' X f'lCRI M KNT STATION. igil. 



3. Plithiiiia taiixjnts Loew. 

 Berlin. Ent. Zeitschr. XIII. 143. 1869. 

 Male and female. Length 6-6i mm. Very slender, legs 

 very delicate, much elongated. Head yellowish to subfuscous ; 

 antennae fuscous, immediate base and scape, yellow ; palpi yel- 

 low, dusky toward the tips. Thorax opaque, ferruginous to 

 fuscous, pleura paler, dorsum not vittate : humeri and lateral 

 line from the humerus to the base of the wing white pollinose. 

 Abdomen slender, much elongated, fuscous black, each segment 

 paler toward the base. Genitalia pale ; hypopygium small. 

 Coxse and legs yellowish, apical half of each femur, the tibia 

 and tarsi more dusky. Fore metatarsus about 2.4 times its 

 tibia in length. Halteres yellow with dusky knobs. Wings 

 saturate cinereous or fuscous cinereous tinged, veins fuscous 

 black, in the female the. wing membrane tinged along the course 

 of the veins. (Fig. 209). "N. Y.," Montpelier, Vt. (C.W.J.) ; 

 Old Forge, N. Y., (J.G.N. ). 



13. Genus Sockciiio Scudder. 



Bui. U. S. Geol. Survey. Terr. III. 753. 1877. 

 This fossil genus resembles Bolctina from which it differs 

 mainly in the wing venation. The subcostal crossvein is want- 

 ing, the radial sector is much curved, nearly reaching the apex 

 of the wing and the anal vein appears to reach the margin. It 

 is represented by S. arcuata Scudder (1. c.) and S. gibbosa 

 Cockerell. The latter species has a shortened anal vein and 

 may be therefore better included with Boletina. 



14. Genus Coclosia Winnertz. ^ \ 

 Verb. Zool.-bot. Ges. Wien. XIII. 796. 1863. 



Ocelli 3, laterals remote of the eye margin. Antennje of the 

 male elongate, the intermediate joints from 3 to 6 times as long 

 as broad. Abdomen 6-segmented ; slender and compressed in 

 the male, clavate and somewhat depressed in the female ; 

 hypopygium large (Figs. 103, 104). Wings elongate oval; 

 costa far produced beyond tip of the radial sector; subcostal 

 vein ends in the costa at or beyond 1-3 the length of the wing; 

 subcostal crossvein (SC2) wanting; media with short petiole; 

 cubitus forks distad of the fork of the media. (Figs. 210-212). 



