day-flyn.

Brit.

/ˈdeɪflʌɪ/, U.S.

/ˈdeɪˌflaɪ/

Forms: see day n. and fly n.¹

Origin: Formed within English, by compounding. Etymons: day n., fly n.¹

Etymology: < day n. + fly n.¹ With sense (a) compare post-classical Latin ephemera ephemera n.² and ancient Greek ἐϕήμερον ephemeron n. With sense (b) compare classical Latin hēmerobion (see hemerobian adj.).

A short-lived winged insect; spec. (a) an insect of the order Ephemeroptera; = mayfly n. 2; †(b) a lacewing, esp. one of the family Hemerobiidae (obsolete rare).

ΘΚΠ

the world > animals > invertebrates > phylum Arthropoda > class Insecta > subclass Pterygota > [noun] > division Exopterygota or Hemimetabola > order Ephemeroptera > family Ephemeridae > member of

day-fly1585

mayfly1653

bank-bait1758

1585 J. Higgins tr. Junius Nomenclator 73/1 Ephemera,..a day flie, liuing not aboue a dayes space, or wineflies.

1601 P. Holland tr. Pliny Hist. World I. xi. xxxvi. 330 Certain thin pellicles or bladders like unto grape kernils: out of which there breaketh forth and issueth a foure footed flie..: and it liveth not above one day, whereupon it is called Hemerobion, [i. a day-flie] [L. hemerobion].

1654 A. Cokayne tr. G. F. Loredano Dianea iii. 206 My felicity had the quality of the Day-flies.

a1711 T. Ken Preparatives for Death in Wks. (1721) IV. 36 This Fly..Never lives longer than a single Day; 'Tis therefore styl'd a Day-Fly.

1767 Suppl. New & Gen. Biogr. Dict. 392 During his stay in the neighbourhood of the Loire, he [sc. Swammerdam] observed and described the flying insect called Libella, or Dragon-fly, and likewise some hemerobia, or day flies.

1803 W. Bingley Animal Biogr. III. 317 The Common Ephemera or Day-fly.

1860 P. H. Gosse Romance Nat. Hist. 15 The triple-tailed larvæ of dayflies creep in and out.

1912 Forest & Stream 16 Nov. 626/2 A fly dressed after a day fly may answer for one of the caddis of similar coloration.

a1933 J. A. Thomson Biol. for Everyman (1934) I. xiii. 245 The may-flies or day-flies spend their larval life in the water, and this may last for several years, but the full-grown winged insects may have no more than one evening of aërial activity.

2011 Times (Nexis) 3 Jan. 50 For decades aquatic fly life in Britain has been in decline with some of the dayflies and the sedge flies—the flies that are the most important to fly-fishermen—being reduced by 80 per cent from their one-time highs.

This entry has been updated (OED Third Edition, September 2014; most recently modified version published online June 2022).

单词	day-fly
释义	day-flyn. Brit. /ˈdeɪflʌɪ/, U.S. /ˈdeɪˌflaɪ/ Forms: see day n. and fly n.¹ Origin: Formed within English, by compounding. Etymons: day n., fly n.¹ Etymology: < day n. + fly n.¹ With sense (a) compare post-classical Latin ephemera ephemera n.² and ancient Greek ἐϕήμερον ephemeron n. With sense (b) compare classical Latin hēmerobion (see hemerobian adj.). A short-lived winged insect; spec. (a) an insect of the order Ephemeroptera; = mayfly n. 2; †(b) a lacewing, esp. one of the family Hemerobiidae (obsolete rare). ΘΚΠ the world > animals > invertebrates > phylum Arthropoda > class Insecta > subclass Pterygota > [noun] > division Exopterygota or Hemimetabola > order Ephemeroptera > family Ephemeridae > member of day-fly1585 mayfly1653 bank-bait1758 1585 J. Higgins tr. Junius Nomenclator 73/1 Ephemera,..a day flie, liuing not aboue a dayes space, or wineflies. 1601 P. Holland tr. Pliny Hist. World I. xi. xxxvi. 330 Certain thin pellicles or bladders like unto grape kernils: out of which there breaketh forth and issueth a foure footed flie..: and it liveth not above one day, whereupon it is called Hemerobion, [i. a day-flie] [L. hemerobion]. 1654 A. Cokayne tr. G. F. Loredano Dianea iii. 206 My felicity had the quality of the Day-flies. a1711 T. Ken Preparatives for Death in Wks. (1721) IV. 36 This Fly..Never lives longer than a single Day; 'Tis therefore styl'd a Day-Fly. 1767 Suppl. New & Gen. Biogr. Dict. 392 During his stay in the neighbourhood of the Loire, he [sc. Swammerdam] observed and described the flying insect called Libella, or Dragon-fly, and likewise some hemerobia, or day flies. 1803 W. Bingley Animal Biogr. III. 317 The Common Ephemera or Day-fly. 1860 P. H. Gosse Romance Nat. Hist. 15 The triple-tailed larvæ of dayflies creep in and out. 1912 Forest & Stream 16 Nov. 626/2 A fly dressed after a day fly may answer for one of the caddis of similar coloration. a1933 J. A. Thomson Biol. for Everyman (1934) I. xiii. 245 The may-flies or day-flies spend their larval life in the water, and this may last for several years, but the full-grown winged insects may have no more than one evening of aërial activity. 2011 Times (Nexis) 3 Jan. 50 For decades aquatic fly life in Britain has been in decline with some of the dayflies and the sedge flies—the flies that are the most important to fly-fishermen—being reduced by 80 per cent from their one-time highs. This entry has been updated (OED Third Edition, September 2014; most recently modified version published online June 2022). < n.1585
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