-2- 



Genus 

 Neotrichia 



Hydroptila 



Mayatrichia 



Rioptila 



Genera grouped as to spurs and ocelli 

 Spur Formula 

 0-2-3 



0-2-4 

 0-2-4 

 0-2-4 



Ocelli 







+ 

 + 



Agraylea 



Ithytrichia 



Ochrotrichia 



Orthotrichia 



Oxyethira 



0-3-4 

 0-3-4 

 0-3-4 

 0-3-4 

 0-3-4 



+ 

 + 

 + 

 



+ 



Dibusa 



Leucotrichia 



Metrichia 



Palegapetus 



Stactobiella 



Zumatrichia 



1-3-4 

 1-3-4 

 1-3-4 

 1-3-4 

 1-3-4 

 1-3-4 







+ 

 + 

 + 

 + 

 + 



Flint discusses the suprageneric classification and points 

 out that it is not completely satisfactory. The following have 

 been proposed by various workers: Nielsen (1948) two subfamilies, 

 Hydroptilinae ( Agraylea , Hydroptila , Oxyethira ) , Orthotrichinae 

 (Orthotrichia , Ithyrichia ) ; Botosaneanu (1956) , Stactobinae 

 (Stactobia etc.)> however, Stactobiella Mart, probably should be 

 in the Hydroptilinae (sensu Nielsen) as the genus based on the 

 larvae are not related to Stactobia (see Flint 1970, p. 2); Ross 

 (1956) placed the genera Paleagapetus and Ptilocolepus in the 

 Ptilocolepinae and all the others in the Hydroptilinae . The 

 latter two genera were originally classed as rhyacophilids. The 

 Palearctic Ptilocolepus was placed in the Hydroptilidae after the 

 larva had been described by Thienemann (1904), however, Martynov 

 (1934) put it in Ptilocolepinae (Rhyacophilidae) . There seems to 

 be no question that the latter two genera belong in the Hydrotili- 

 dae. Flint (1970), proposed Leucotrichinae for 9 neotropical 



