Vol. XXX] ENTOMOLOGICAL NEWS. 173 



experienced a period of conditions favorable to their rapid in- 

 crease in numbers. 



I note the following records of the occurrence of the latter 

 species, known as the larger Narcissus- or Dafifodil-fly, which 

 are in addition to the records of its interception in shipments 

 of bulbs from abroad. 



(H) 1908, Jan., OsBURN, R. C, British Columbia Syrphidae, New 

 Species and Additions to the List, Can. Ent., xl, i, p. 10. A 

 number of specimens from several localities. Believes it es- 

 tablished. 



(I) 191 1, Hewitt, C. G., Report of the Dominion Entomologist, Can- 

 ada Expt. Farms Reports, 191 1, pp. 207-235, pis. 3, figs. 3. A 

 serious pest in British Columbia ; some 50,000 Narcissus and 

 Daffodil bulbs having been destro3^ed near Victoria during the 

 year. 



(J) 191 1, Norman, P., Merodon equestris in southern British Colum- 

 bia, Proc, Brit. Columbia Ent. Soc. n. ser. 191 1, No. i, pp. 

 22-26. 



(K) 1914, Childs, L., The Large Narcissus-bulb Fly (Merodon eques- 

 tris). Mo. Bui. Com. Hort. Cal., 3 (1914) No. 2, pp. 73-76, figs: 

 2. Taken frequently in Sutter Co. and San Rafael, Calif. 



(L) 1916, June, Johnson, Charles W., Some New England Syrphi- 

 dae, Psyche, xxiii, 3, p. 79; Blue Hill, Mass., June 5, 1910, 

 Great Barrington, June 16, 1915, 



(M) 1916, Sept., Banks, Nathan, et al., District of Columbia Diptera : 

 Syrphidae, Proc. Biol. Soc. Wash., xxix, p. 188 ; record a speci- 

 men labeled Aug. 4, 1907. 



(N) 1916, Davidson, W. M., Economic Syrphidae in California, Jour. 

 Ec. Ent., Vol. 9, p. 457. 



(O) 1916, Oct., Metcalf, C. L., Syrphidae of Maine, Me. Agr. Exper. 

 Sta. Bull. 253, p. 217. 



This species was taken in company with Eiiwicriis (vide 

 supra) at Bar Harbor, Maine, July 25, 1916. The three speci- 

 mens taken in the few minutes available for collection represent 

 three of the many diverse color varieties. See in this connec- 

 tion also Johnson (L). 



Norman (J) states that it is said to have been introduced 

 to British Columbia about 1905, and that six months are passed 

 in the larval ^tage, pupation occurring in the soil in February 

 and the adults emerging in late March, and ovipositing in May. 

 Childs (K) says the females oviposit throughout the greater 

 part of the summer. Stocks,* however, states that ihe life- 



