VARIATION. 49 



of Odoncstis potatiiria durinpj 1896 (the larvie of this species and of 

 Laaiocainpa (po'iri'is were both captured in hmes round Darenth). It is 

 a (? of yellow coloration, somewhat similar to that usually found in 

 the 2 s, the antenmo. also, are of the same colour. I have been told 

 that this aberration is taken in the Fen district, but I have not heard 

 of it elsewhere. I hope that these notes may be of interest. I shall 

 be very pleased to show the specimens to anyone. — Ibid. 



:i^RACTICAL HINTS. 



Field Work for February and March. 



By J. W. TUTT, F.E.S. 



1. — The larva of Kpunda lic/ienea is to be found at night, from the 

 middle of February to the end of April, resting on the top of grass 

 stems, in sheltered spots at Portland, Torquay, and other localities. 



2. — During the last week in February the larvie and pupa) of 

 Ephippijifiora sniudana are to be obtained in thistle heads and stems. 



3. — Oak galls, collected in the winter, give Kp/iipjiiiilu)raiiallir(dau'i, 

 Coccyx aplcndidnlana and llrnsiiiwni' jinihriana. 



4. — During the winter, stems of Stacln/s sijlvatica should be col- 

 lected for larvffi of Ejdtippiphora nii/ricostana. 



5.— The larva of (Jochylis di/ndtana feeds on a web among the seeds 

 of yarrow, in the autumn and winter. 



G. — The roots of corn woundwort (StacJnjf! arvensis) should be 

 collected in February for larviie of (htJtotaenia antiquana. 



7. — Shoots of currant bushes that were cut in January and February 

 of the previous year should be collected in March. The winter cocoon 

 of Si'sia tipulifonnk will be found not far from the end of the shoot. 

 Keep the cut twigs in damp sand. 



8. — The larvfe of Tortrix forsterana can be found in March, between 

 two leaves of ivy, spun flatly upon one another. 



9. — In February, where one knows osiers or sallows are being cut 

 down, look over the cut sticks for the burrows of TrochUhun crabmni- 

 forme. The larvfc rarely get more than a foot or so from the root. 

 Keep the cut sticks in sand, with holes downwards. The moths 

 emerge the first fortnight in June. 



10. — The pupae of Scsiafornnciformif; should be obtained by cutting 

 off the tops of osier stumps, during April and May. 



11. — Beating and searching for larvpe by night - both in spring 

 and autumn — is much more profitable than beating by day. 



12. — In March, the larvae of Heliophnhus kispidiis are to be found by 

 night. The larva) of Stilhia anoinala, Aipotis lucerncn, Epunda niijra 

 and E. lichcnea, and other species, are also to be found at the same 

 time, in suitable places. Tortjuay is a well-known locality for all 

 these species. (See also 1). 



13.— During February and March, the larvic (some almost full-fed) 

 of Scoparia auijustra are to be found by pulling off the moss on the 

 surface of rocks and old walls. 



14. — The larva of ('leoia lichenaria is always worth looking for in 

 February and March (as well as later) on the lichen-covered fences and 

 trees it loves to haunt. It is rather fond of sunning itself on bright 

 days. (See also 17). 



