76 tApril, 



EXPLANATION OF PLATE II. 



To exhibit graphically the proportion of light (hi/erana) and dark {marginala) 

 specimens occurring at each of the two stations (hill and coast). 



1. H. hyerana hyerana from hill. 



2. U. hyerana marginata from hill. 



3. H. hyerana hyerana from coast. 



4. n. hyerana marginata from coast. 



The one separate specimen in 2 and the 5 in 4 are hyerana marginata ab. 

 marginula. 



Betula, Reigate : 



January, 1907. 



HELP-NOTES TOWARDS THE DETERMINATION OF BRITISH 

 TENTEREDINIDM, &c. (18). 



BT THE REV. F. D MORICE, M.A., F.E.S. 



BLENN0CA3IPIDES = MESONEUEA to PAREOPHORA. 



After the HopJocampides we come, fcjllowing Konow's arrange- 

 ment, to the Blennocampides. And at this point it will be well to 

 refer to my Table of Generic Characters (Ent. Mo. Mag., August, 

 1903) in order to correct certain errors and misprints, which might 

 otherwise become troublesome as we proceed. 



Page 191 (line 17). — After the words " in different cells," read (to meet the 

 ease of the Dolerides) " or else the humeral area is not petiolate." 



Same page (lines 30 and 32). — For " gradually tapers to a point iit apex," read 

 " cultriforni, broad at base and short, constricting rapidly to a sliarp point 

 at apex ;" and for " suddenly acuminated at apex," read " elongate, taper- 

 ing gradually towards the pointed apex." (I seem to have said just the 

 reverse of what I intended ! ) . 



Same page, last line. — Here is an important omission, a genus having been 

 overlooked. The line should be altered as follows : — 

 " — Prsesterna not defined (a) H. w. with a medial n....Monophadnu!i. 

 (i) II w. without a medial n 51." 



Page 193, line 21. — " Tarsal " is a misprint for " dorsal." 



The Blennocampides are divided by Konow into almost as many 

 geiiera as the Nematidcs ; few, however, of these genera contain any 

 considerable number of British species, and several no more than one. 



In all Bleniiocnmpides the humeral area of the fore-wing is 

 " petiolate," and this character separates them from all other tribes 



