NATHAN BANKS. 13 



A cross-vein in costal area 3. 



3. Discal cell in bind wings closed 4. 



Discal cell in hindwings open. . 5. 



4. Middle tihife of female dilated ; maxillaiy palpi shorter; smaller species, less 



marked HoIo<^eiiti'0|>iiN. 



Middle tibiae of female not dilated; maxillary palpi longer; laiger, more 

 marked species Plectrociieniia. 



5. P\)rk 1 present in fore wings Polyceiitr«|His. 



Fork 1 absent in forewings; antennse strongly crenate C'yrims. 



6. Radial sector connected to radius above or near discal cell 7. 



Radial sector not connected to I'adins; discal cell short; no ocelli; all five 



forks present in forewings Hydropsyclie. 



7. Ocelli pi'esent ; no depi'ession in front ])art of the mesonotuni ; fork 1 present 



in forewings 8. 



No ocel li 11. 



8. Fork 4 absent in forewings Worinal<iia. 



Fork 4 present in forewings 9. 



9. No closed discal cell in hindwings 10. 



A closed discal cell in hindwings Philop<»laiiilis. 



10. A cross-vein from fork 4 up to median vein ; fork 4 arising a long distance 



before anastomosis Fellopsyche. 



No cross-vein from fork 4 up to median vein ; fork 4 arising scarcely width 

 of cell before anastomosis Atopsyche. 



11. Hindwings much broader than forewings; antennie much longer than 



wings; all forks present 12. 



Hindwings barely, if any, broader than forewings; antenuse rarely as long 

 as wings 13. 



12. Radius runs into subcosta near tip Macroiieina. 



Radius runs into wing margin, not into subcosta Potaiiiyia. 



13. No closed discal cell in hindwings; fork 1 not present in forewings; meso- 



notum with a depression in front containing two rounded warts- • -14. 



A closed discal cell in hindwings; fork 1 present in forewings; mesonotuni 



without depression 15. 



14. Middle tibiae and tai'si of female dilated ; third joint of maxillary palpi not 



longer than the second or fourth P|t>ycliOiiiyia. 



Middle tibiae and tarsi of female not dilated ; third joint of maxillary palpi 

 longer than either the second or the fourth Tiiioile**. 



15. Two spurs to tibia I ; size large A rctopsyclie. 



One spur to tibia I ; size small ; (according to figure) no costal cross-vein. 



Sniicridea. 



Hy«Irop»«yclie oslari n. sp. — Head dark brown, sparsely clothed with 

 white hair, some black on hind part of vertex; palpi dark brown, with brown 

 hair; antennae yellowish, spirally annulate with brown, scarcely as long as 

 wings; thorax brown, with short, white hair in middle, longer yellow hair at 

 base of wings; abdomen brown, apex yellowish; legs pale yellow, with white 

 and yellow hair. Wings brown, densely irrorate with white, a subapical part 

 with few marks, apical fringe dark, with several white spots, fringe at outer anal 

 angle black ; hing wings faintly gray, with gray fringe. In hind tibiae the sub- 



TKANS. AM. ENT. SOC. XXXII. NOVEMBER, 1905. 



