INSECTS LYO-ENID/E (continued) Canal bank, Tring (Hon. L. Walter Rothschild, Cottam, Elliman) ; Aid- bury Owers (Le Quesne) ; near Hitchin (Latchmore, Gatward) ; Royston (A. H. Kingston) This, our smallest butterfly, ap- pears to be particularly abundant at certain spots in the Tring district Chrysophanus astrarche, Bgstr. (medon, Esp. ; agestis, Hb. ; artaxerxes, F.). Bricket Wood (Perkins); Hitchin (Dur- rant) ; Hertford (Stephens) ; Watford (Spencer, Heaton, Wigg) ; Aldbury (Cottam); Aldbury Owers and Pitstone Hill (Elliman) ; Haileybury (School List) The Hon. L. Walter Rothschild informs me that this butterfly is abundant in the district between Pitstone and Berkhamsted Common phloeas, L. St. Albans and Harpenden (A. E. G.) ; Bricket Wood (Perkins); Sandridge (Griffith) ; Hitchin (Dur- rant) ; Haileybury (Bowyer) ; Wat- ford (Spencer, Heaton, Wigg) ; Aid- bury Owers and Tring (Elliman) ; Bushey Heath (Barraud) ; Stevenage (Matthews) ; Cheshunt (Boyd) ; common in south-west Herts (H. Rowland-Brown) Mr. Elliman has noticed that C. phlaeas is more plentiful in some years than others argiolus, L. Sandridge (Griffith) ; Haileybury (Bowyer) ; Hoddesdon (Harley, Entomologist, v. iii.) ; East Barnet (Gillum) ; Tring, abundant (Hon. L. Walter Rothschild); Bushey Heath (Barraud) ; Norton Green Woods (Matthews) ; Cheshunt (Boyd}; Bury Green and Bishop Stanford (Mellows) ; Cassiobury Park (H. Rowland-Brown) corydon, Pod. New Farm, St. Albans (A. Lewis) ; Letch-worth (Knapp, Entomologists' Weekly Intelligencer, ii. 155); Broxbourne Common (Warner) ; Aldbury Downs (Cottam, Elliman) ; common on downs at Dancer's End (Hon. L. Walter Rothschild) ; Roy- ston Downs (W. J. Hardy, A. H. Kingston) ; Lilley Hoo (Latchmore, Gatward) ; one at Turnford (Boyd) This is a common insect on the downs in the north of the county, but it is also to be found occasionally at considerable distances from any extensive outcrop of the chalk, as at LYCJENID.S: (continued) Broxbourne Common, Turnford and St. Albans Chrysophanus bellargus, Rott. (adonis, Hb.). Aldbury (Cottam, Hon. N. Charles Rothschild) ; Dancer's End (Hon. N. Charles Rothschild, A. T. Goodson) ; Royston (A. H. Kingston) Mr. A. T. Goodson reports that both the spring and autumn broods occur in the Tring district icarus, Rott. The common blue oc- curs very generally throughout the county. Great variations in size are often to be noted arion, L. Haileybury (Bowyer, Stock- ley) ' One specimen shown up for the Cornthwaite Prize some years ago ' (Haileybury School List, 1888). Mr. Stockley informs me that C. arion was seen by three collectors in 1898 and that he was within a yard of the specimen Colias hyale, L. St. Albans (A. E. G., Perkins, A. Lewis) ; Sandridge (Grif- fith) ; Hitchin (Durrant) ; Watford (Spencer, Cottam) ; Tring (A. M. Brown) ; between Tring station and Marshcroft (Elliman) ; near Hastoe (Hon. L. Walter Rothschild) ; on Aldbury side of railway (Cottam) ; near Boxmoor (Cottam) ; Wormley (Warner) ; Royston (A. H. Kingston) edusa, F. St. Albans (A. E. G.) ; Sandridge (Griffith) ; Harpenden (E. R. Chambers, J. J. Willis) ; Hitchin (Durrant) ; Knebworth (Brown, Entomologist, x. 139) ; Watford (Cottam, Spencer, Heaton, Wigg) ; Haileybury (School List) ; East Barnet (Gillum) ; Southgate (Dymond) ; Tring (Elliman, H. Rowland-Brown); on the Aldbury side of the station (Cottam) ; near Boxmoor (Cottam) ; Radlett (A. R. Heath, Entomologist, xxviii. 309) ; Oxhey Wood (H. Row- land-Brown) ; Cheshunt (Boyd) ; Wormley (Warner) ; Hertford (Grave- son) ; Ware (G. H. Tite) ; Royston (A. H. Kingston) var. helice. St. Albans (A. E. G.); Brown's Lane, Tring (Goodson) ; Watford (Cottam) ; New River reservoirs, one specimen (Boyd) In papers read before the members of the Hertfordshire Natural History Society I have dealt at some length with the appearances of C. edusa and