179 material excavated from the tree by the saws and cemented with an adhesive secretion of the parent female. Its larvae vary considerably in colouration ; but the head is never, I believe, entirely black. The parasites, that emerged from my cocoons of D. sertifer during 1930, belonged to three species of the Ichneumonid tribe Tryphonides ; and were kindly identified for me by Dr. Ch. Fernere :—Exenterus marginatorius, Fab., onemale emerged on 24 April and two females on 24 April and 21 May; Mesoleius (Torocampus) eques, Htg., one male on 26 May and one female on 30 t; and Perilissus (Lophyroplectus) luteator, Thunb., one female on 21 May. The first is a common parasite of D. sertifer and other species of its genus in northern and central Europe ; but Mr. Claude Morley, who kindly confirmed the determination, knew (lehn. Brit. vol. iv, p. 206) only two records of its occurrence in England. The two latter parasites are both recorded from D. sertifer and D. pini on the Continent, but appear to be new to Britain. I exhibited speeimens of E. marginatorius and T. eques at a Meeting of the Suffolk Naturalists' Society on 1 August last; my sole L. luteator is now in the British Museum. BIRD NOTES IN 1931.
BIRD NOTES IN 1931 FROM A BUXHALL GARDEN. BY C. E. HARVARD.
RESIDENTS.—Mistle-Thrush (Turdus viseivorus) : a winter visitor only. Song-Thrush (T. musicus) :firstegg 7 April, a month later than in 1930. Blackbird (T. merula) :firstegg 10 April; very late in nesting. Redbreast (Erithacus rubecula) :' first nest 13 April. Hedge-Sparrow (Accentor modularis) : a nest found, containing one egg and the egg of a Cuckoo. Tits, Great (Parus major) and Blue (P. caruleus) and Marsh {P. palustris), nest in boxes ; the Coal (P. ater) is a winter visitor only ; and the Long-tailed (Acredula caudata) has been very scarce since the aretie spell of 1928-9. TreeCreeper (Certhia familiaris) : nest of four eggs on 5 May. Pied Wagtail (Motacilla lugubris) : a pair nest regularly in the creeper on the house,firstbrood hatched on 18 May. Finches, such as Greenfinch (Ligurinus chloris), Chaffinch (Fringilla fWe have examined these two species and are satisfied that the latter is a mere form of Mesoleius bicolor, Grav. (lehn. Brit. iv, 149) with developed alar areolet, an extremely variable and unrehable character throughout the tribe Tryphonides, whereon Continental authors place quite unwarranted stress.—Ed.