A HISTORY OF SUSSEX 



Silo pallipes, Fabr., at Fairlight and Guestling; and Cruncecia irrorata. 

 Curt., at Fairlight and Binstead. The Leptoceridce are Bercea pullata. Curt., 

 Hastings ; Leptocerus aterrimus, Steph., Guestling ; Mystacides nigra, Linn., 

 Hastings and Bersted ; M. longicornis, Linn., Hastings ; Trianodes bicolor. 

 Curt., Hastings district ; (Ecetis furva, Ramb., Winchelsea ; and (E. lacus- 

 tris, Pict., Bersted. Of the Hydropsychidce we have Hydropsyche pelluci- 

 dula. Curt., from GuestUng ; Diplectronafelix, McLach., from Fairlight ; 

 Wormaldia occipitalis, Pict., from Fairlight ; Plectrocnemia conspersa. Curt., 

 from Hastings ; Folycentropus flavo-maculatus, Pict., from Bodiam ; Holo- 

 centropus dubius, Ramb., from the Hastings district ; H. picicornis, Steph., 

 from Pett ; Tinodes assimilis, McLach., from Fairlight and Bognor ; and 

 T. nsoceneri from Chichester. The list concludes with three Rhyacophilidce 

 — Rhyacophila dorsalis,Q.wr\..Sxom Fairlight ; Agapetus fuscipes. Curt., from 

 Bognor ; and A. comatus, Pict., from Midhurst. The last family — the 

 Hydroptilidce — are at present unrepresented in the county list. 



RESULT 

 Sub-orders Sussex British 



Psocidia 24 out of about 44 



Perlidia 3 



Ephemeridia 



Odonata 26 



Planipennia 26 



Trichoptera 43 



130 359 



HYMENOPTERA 



PHYTOPHAGA 

 TENTHREDINIDtE 



Sawjlies 



The sawflies are very little known to the general public, and even 

 among entomologists there are not many who have paid much attention to 

 them. Very few attract notice either in the larval or imago state, though 

 some are at times very destructive. 



The larva of Hoplocampa testiidinea destroys our apples, devouring 

 the interior and causing them to fall when about the size of walnuts. 

 About fifty years ago the larva of Athalia spinarum was very destructive 

 to young turnips, clearing whole fields in a very short time, but little 

 has been heard of it of late years ; while Nematus ribesii, the very 

 common gooseberry pest, devours the leaves, leaving the branches bare, 

 and thus injures the fruit. 



Yet the Tenthredinids are very interesting on many accounts ; 

 the saws with which they are furnished and which they use to provide a 

 nidus for their eggs are interesting structures and of very varied forms. 

 The sawflies also afford very curious examples of complete or partial 

 parthenogenesis. In some species the males and females occur in almost 

 equal numbers, in others the males are very rare compared with the females, 



118 



