266 THE DRY-FLY MAN'S HANDBOOK 



The student who wishes to be able to identify more 



of the caddis-flies which may 

 Identification of other , ^ , 111 r 1 



Trichoptera. ^.^ *^°""^ °" ^^^ ^^"'^^ ""^ ^^^ 



river, will have to devote some 



time to the consideration of a little more science and 



put up with more Greek and Latin names. I will try 



as briefly as possible to set out the points to which 



he must give his best attention. 



The Trichoptera are divided into two divisions : 



(i) I nsequipalpia or caddis-flies 



I cinu 



i^quipalpia. 



Insequipalpia and • 1 i -n 1 • / 1 



with the maxillary palpi (the 



longer and upper pair) with 

 fewer than five joints in the male and five in the 

 female ; and (2) ^quipalpia, in which the maxillary palpi 

 are five-jointed, and generally similar in both sexes. 



The following is McLachlan's tabulation of the 

 families : — 



DIVISION I 

 IN^QUIPALPIA 

 Phryganeidae. — Maxillary palpi of the male four-jointed, 

 only slightly pubescent, their form similar in both 

 sexes. 

 Limnophilidae.— Maxillary palpi of the male three- 

 jointed, scarcely pubescent, their form similar 

 in both sexes. 

 Sericostomatidae.— Maxillary palpi of the male two or 

 three-jointed, ordinarily very pubescent or pilose, 

 and always formed in quite a different manner 

 from those of the female ; varying very greatly 

 according to the genus. 



