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THE ESSEX NATURALIST
E. (E.) lutea Mg. var. taenionata Mg. Perhaps the commonest
of the very small crane-flies. May, June.
E. (Ilisia) maculata Mg. By woodland steam, July.
E. (I.) occoecata (Edw.) In marshy clearing by stream. May.
June.
Ormosia (Ormosia) lineata (Macq.) Octagon Plantation and Mill
Wood, April, May.
O. (O.) nodulosa (Macq.) Swept from nettles, red campion, etc.
by stream in ash wood, May.
O. (Rhypholophus) haemorrhoidalis (Zett.) Flying over wood-
land stream, October.
Molophilus griseus (Mg.) In oak wood, October.
M. serpentiger Edw. In marshy clearing by stream, May.
M. cinereifrons de Meij. Swept from nettles, etc., by woodland
streams, May.
M. ochraceus (Mg.) In marsh at head of Old Hall Pond, June.
TRICHOCERIDAE
The Winter-gnats are extremely like the true Crane-flies, and
indeed until recently they were considered to be a sub-family of
the Tipulidae. As their English name suggests, they are adult in
the winter months.
I have followed Laurence (1957) in the identification of these
flies.
Trichocera annulata Mg. October.
T. regelationis (L.) February.
T. rufescens Edw. October.
T. saltator (Harris) February.
PTYCHOPTERIDAE
The Phantom Crane-flies are attractive black and yellow flies,
more robust than the Tipulidae. Freeman (1950) gives a useful
key.
Ptychoptera contaminata (L.) Margin of Childerditch Pond.
June.
P. albimana (F.) In woodland swamps, May, June.
P. minuta (Tonn.) Margin of Childerditch Pond, May.
P. paludosa (Mg.) Sparingly among nettles by a woodland
stream, June.
P. lacustris (Mg.) "Brentwood", June (P. Freeman, per L.
Parmenter).
References
Coe, R. L. (1950). Handbooks for the Indentification of British Insects, 9,
2: 1-66. R. ent. Soc. Lond.
Freeman, P. (1950). Handbooks for the Identification of British Insects,
9, 2: 73-76.
Kloet, G. S. & Hincks, W. D. (1945). A Check List of British Insects.
Stockport.
Laurence, B. R. (1957). The British species of Trichocera. Proc. R. ent.
Soc. Lond. (A), 32: 132-8.