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 A HISTORY OF CORNWALL CYCLORRHAPHA (continued) PROBOSCIDE4 (continued) CHLOROPIDAE (continued) Center cereris, Fin. W. Cornwall (D.) Eutropha fulvifrons, Hal. Padstow (L.) Diplotoxa messoria, Fin. Padstow (L.) ; W. Cornwall (D.) Chlorops taeniopus, Mg. The Gout Fly. In some years this fly causes serious injury to the barley crops of the county by laying its eggs in the sheathing leaves in close proximity to the form- ing ear while the plant is still young. In 1887 it did great damage in the county, and in 1897 many fields of barley suffered severely. Since that time its ravages have not been very serious, though affected ears are frequently sent in for identification Chloropisca ornata, Mg.J L glabra, Mg. j Oscinis frit, L. The Frit Fly. In Cornwall at least this fly confines its attention exclusively to oats and in dredge corn leaves the barley unscathed. In 1888 the fly was remarkably prevalent in Cornwall and Devon, and on many farms throughout the former county destroyed the oat crops to a disastrous extent. It was com- mon about Bodmin and in the Blisland district in 1902, but has not been noticed since that date Elachyptera brevipennis, Mg. W. Cornwall (D.) cornuta, Fin. Stilly (J.) AGROMYZIDAE Ceratomyza denticornis, Pz. Leucopis griseola, Fin. > Padstow (L.) Ochthiphila polystigma, Mg.J juncorum, Fin. Padstow (L.) ; W. Cornwall (D.) - aridella, Fin. W. Cornwall (D.) flavipalpis, Hal. Padstow (L.) CYCLORRHAPHA (continued-] PROBOSCIDE4 (continued) AGROMYZIDAE (continued) Schoenomyza litorella, Fin. Padstow (L.) ; St. Mar- tin',, Stilly (Y.) fasciata, Mg. Padstow (L.) PHYTOMYZIDAE Napomyza lateralis, Fin. W. Cornwall (D.) Chromatomyia obscurella, Fin. W. Cornwall (D.) ASTIADAE Astia amoena, Mg. Looe (A.) ; W. Cornwall (D.) BoRBORIDAE Borborus nitidus, Mg. W. Cornwall (D.) ; St. Mar- tin's, Stilly (Y.) equinus, Fin. Sphaerocera subsultans, F. - vaporariorum, Hal. ^ W. Cornwall (D.) Limosina Zosterae, Hal. sylvatica, Mg. PHORIDAE Conicera atra, Mg. Trineura aterrima, F. Phora rufipes, Mg. flava, Fin. W. Cornwall (D.) HlPPOBOSCIDAE Ornithomyia avicularia, L. Looe (A.) ; IV. Cornwall (D.) Melophagus ovinus, L. The so-called Sheep Tick. HEMIPTERA HETEROPTERA A list by Mr. E. D. Marquand of the Hemiptera Heteroptera collected by him in the Penzance district, in the Transactions of the Penzance Natural History and Antiquarian Society (new series), vol. ii, and a note by Mr. G. C. Champion in the Entomologists 1 Monthly Magazine, xxxiii, on his captures at Scilly, together with records by the Rev. T. A. Marshall, Dr. Mason, the Messrs. Dale, Mr. G. C. Champion, Mr. E. A. Newbery, Mr. J. J. Walker, and others referred to in Saunders's monograph, constitute the principal published data on county Heteroptera. The writer has to thank Mr. J. H. Keys not only for a MS. list of his own captures about Whitsand Bay east, but for valuable notes from Mr. E. A. Newbery and Mr. G. C. Champion. The Heteroptera of the county include some rare and interesting forms. Eurygaster maura was taken by J. C. Dale at Land's End. Geotomus punctulatus was found by Saunders at Whitsand Bay, Land's End, in 1864, under stones and among Erodium, and G. C. Champion obtained it in the same locality in August, 1897. Pentatoma baccarum has been captured at Tregantle, at Gerran's Bay, at Land's End, and at Scilly. The rare Strachia oleracea was found by Dale at Kynance Cove. Picromerus tidens and the beautiful steel-blue Zicrona coerulea are not infrequently found in the Land's End district, and the latter has also occurred at Tregantle. Enoplops scapha has been recorded for Mount Edgcumbe, Whitsand Bay East, Falmouth, and Land's End. The quaint Verlmia rhombea was found many years ago by J. J. Walker at Whitsand Bay East. Alydus calcaratus occurs at Downderry and in the Land's End district in company with Formica rufa. The pretty Therapha hyoscyami with its striking display of red and black was taken in some numbers on the wing at Boscastle by Keys in June, 1898, and some years previously by C. W. Dale near the Land's End. Metacanthus punctipes was one of Walker's finds at Whitsand Bay East. Henestaris laticeps occurs locally all along the south coast from Tregantle to Land's End. H. halo- philus was another of the good things found by Walker at Whitsand Bay. That very local species, 238