246 [November, 



The period of emergence was very prolonged, sixty per cent, 

 came out in September and October, a few in August, but tbe rest 

 in gradually decreasing numbers stretched out over November, 

 December, January and February, one emerging in March and two 

 in April this year, these were the Taorniina specimens, this year 

 (1906), one actually emerged on June 4th after spinning up in 

 April, the only instance of anything like so short a period I have 

 met with, so that it is probably the case that the moth may appear 

 at any time of the year. 



A third generation raised from the egg at Reigate had as 

 parentage two dark marginata moths, these were nearly all dark, 

 but a pale {Jiyerana type) one occurred amongst them. This brood 

 were all fine large moths, although the brood their parents belonged 

 to (from a pale and dark moth) were small and starveling. In both 

 cases the result no doubt of feeding (ill or well) and not of any 

 degeneracy or otherwise of the stock. 



EXPLANATION OF PLATE IIL 



All Figures enlarged 1^ times. 



Figs. 1, 2. Hastula hyerana, var. pallens (Capri race). 



„ 3, 4. „ ,, type (Taormina race, similar to the Hyeres race 



of 50 years ago). 

 „ 5, 6. „ „ var. marginata, Wlsm. (forms with type the 



present Hyeres race). 

 „ 7, 8. ,, ,, ab. nigropunctata (Taormina). 



„ 9. „ „ ab. alpha, Mill. (Taormina). 



„ 10. ,, „ approaching nigropunctata (Taormina). 



„ 11. „ ,, ab. marginata (Hyeres). 



„ 12, 13, 14. ,, „ ab. marginata (Hyeres, bred from ova at 



Eeigate). 



(To be continuedj. 



HELP-NOTES TOWARDS THE DETERMINATION OF BRITISH 

 TENTHREDINID^E, &c. (16). 



BY THE llEV. F. D. MORICE, M.A., F.E.S. 



NEMA TIDES{continued)=PRISTIPHORA, Latr., L YGMONEMA TUS, Knw. 



Pristiphora, Latr. 



This genus may generally be recognised at a glance by its lacking 

 the usual strong sculpture {area pentagona, &c) of a Nematid's 

 " frons " : the ocelli are set in the middle of a nearly flat-looking area. 

 Of course it is really a little convex ; but shnply so, without definite 



