CLASSIFICATION 17 



I have departed from the classification in 

 the " Dry-Fly Man's Handbook," and have 

 adopted here that of George Ulmer, who sub- 

 divides the ^EQUIPALPIA into nine families as 

 against the four described by McLachlan. 



The characters given in the following table characters 

 apply to British Families. Families. 



IN^EQUIPALPIA. The males with three or 

 four joints to the maxillary palpi, the females 

 with five joints. 



Phryganeidce. Maxillary palpi of the male four- jointed ; 

 form similar in both sexes ; ocelli present. 



Limnophilidcs. Maxillary palpi of the male three- 

 jointed ; form similar in both sexes ; ocelli present. 



SericostomatidcB. Maxillary palpi of the male always 

 formed in a different manner from those of the 

 female ; very hairy, sometimes covered with scales, 

 and with the number of joints three, or very 

 obscure ; ocelli mostly absent. 



/EQUIPALPIA. Maxillary palpi five- jointed in 

 both sexes. 



OdontoceridfB. Maxillary palpi strongly hairy, having 

 the fifth joint not sub-articulated. Median cell 

 of the anterior wings absent. Discoidal cell in 

 both wings closed. Between the radius and the 

 first apical sector there is a cross vein, or the 

 radius merges in the first apical sector. The 

 second apical fork in the anterior wings wanting, 

 or only occasionally distinct. Ocelli absent. 



Leptoceridce . Maxillary palpi strongly hairy, with the 

 last joint usually long but simple, often flexible ; 

 in some species the fourth joint is also flexible. 1 

 Anterior wings usually narrow and very hairy. 



1 This does not appear to have been noticed in their works 

 by writers on the TRICHOPTERA. 



