202 Journal New York Entomological Society, ["^'oi- ^'^^■ 



U-shaped hook, the inner edge of the lobe produced into a less chitinized hook. 

 Viewed from beneath, the pleura has a lower lobe separated from the dorsal 

 one by membrane ; this lower lobe is provided with a powerful chitinized ap- 

 pendage ending in a long straight point, the caudal or outer edge with promi- 

 nent, regular teeth, the inner or cephalic margin of this appendage with a few 

 long bristles near the base. 



Holotype, J', Valle de las Papas, March 29, 1912. 

 Allotype, ?, with the type. 

 Paratypes, i c?, 2 ?, with the type. 



Genus TRIMICRA Osten Sacken. 



12. Trimicra sp. 



One female from the Valle de las Papas, March 29, 1912; it is in 

 too poor condition to determine beyond the genus. 



Tribe Limnophilini. 



Genus EPIPHRAGMA Osten Sacken. 



13. Epiphragma cordillerensis new species. 



Thorax with five dark lines, one being median, femora with a conspicuous 

 subapical brown ring with indications of a second, postmedian ring, wings 

 light brown with darker ocellate markings. 



Male, length, 7.2—8 mm. ; wing, 9—9.4 mm. 



Female, length, 10— 10.8 mm.; wing, 10. 3-12. S mm. 



Rostrum and palpi dark brown ; antennae with the scapal segments dark 

 brownish black, the rather enlarged first segment of the flagellum bright 

 orange-yellow, remaining segments of the flagellum dark brownish black ; front, 

 vertex and occiput dark brown, a pale buff margin along the eyes and two buff 

 spots on the occiput. 



Praescutum with a broad brown median stripe, which continues to the 

 suture ; sides of the sclerite a little darker, region between these brown mark- 

 ings with a golden yellow bloom ; scutum light yellow, the center of each lobe 

 and the median depression brown ; scutellum grayish brown with a median 

 brown stripe ; postnotum gray with a brown median stripe and a rounded 

 brown spot on either side near the end of the basal half. Pleurae grayish, a 

 dark brown stripe extending from the head across the cervical and pronotal 

 sclerite to the metathorax. Halteres rather long, pale, the knobs a little 

 darker. Legs with the coxae yellowish, the extreme base traversed by a dark 

 brown band, trochanters brownish yellow, femora yellowish, darkening to brown 

 before the tip, a subapical or apical ring of yellow, tibiae brownish yellow, tarsi 

 brown. Wings with a dull yellow suffusion and with abundant brown ocellate 



