14
Suffolk Natural History, Vol. 56
THREE SPECIES OF CECIDOMYIIDAE NEW ADDITIONS TO THE SUFFOLK DIPTERA CHECKLIST JERRY BOWDREY
Contarinia solani Rübsaamen, 1892 Larvae of C. solani induce galls in the flowers of Solanum dulcamara (Bittersweet). The flowers remain closed, become swollen and contain several white larvae. Several individual flowers in an inflorescence may be galled. (Figs. 1 & 2). Figure 1. Galled inflorescence Figure 2. Galled flower
J. Bowdrey
Summary Three species of gall midge (Diptera: Cecidomyiidae) are added to the Suffolk Diptera Checklist, all recorded in 2020. Introduction Part two of the Suffolk Diptera Checklist (Vincent, 2019)*, covering the infraorder Bibionomorpha, listed 98 species of Cecidomyiidae for the county. Field work during 2020 has added three new species to this total from records of their galls. Nomenclature of cecids follows the Dipterists Forum Checklist (2020). Species new to the Suffolk Diptera Checklist:
Dasineura kiefferi Marchal, 1896 Larvae of Dasineura kiefferi gall the flowers of Hedera helix (Ivy). They are gregarious and whitish in colour. The flower bud remains closed and may protrude slightly above ungalled flowers in the Figure 3. galled flower, top Figure 4. from above inflorescence. A purplish right. tinge distinguishes the galled buds from their ungalled neighbours. (Fig. 3 flower top right, Fig. 4 from above). The gall is hard to detect and is found at low densities amongst the profusion of ivy flowers in early autumn. It also has a short duration on the plant, falling at maturity. Trans. Suffolk Nat. Soc. 56 (2020)
J. Bowdrey
Recorded from S.E. England and N. Wales (Redfern et al., 2011) New to Suffolk: TM36 East Suffolk, TM394661 Kelsale-cum-Carlton, Tiggins Lane 2.viii.2020, several galled flowers on a hedgerow plant. JPB.