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, 



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