15 



Report of the Field Meeting held at Horsley on 

 July 7th, 1900. 



By E. B. Bishop. Read September xt^Hi. 



About twenty members and friends took part in this excursion, 

 which turned out to be an enjoyable one in spite of an east wind 

 and its corollary of empty boxes. 



On arriving at the " Duke of Wellington," at East Horsley, half 

 the party decided to work the Sheep Leas for Cupido minima^ etc., 

 whilst the remainder preferred to explore the chalk-pit, and stroll 

 along the lane as far as Ealcon Bridge. 



The Sheep Leas party, undeterred by sinister rumours as to the 

 relentless vigilance of keepers in that favourite entomological haunt, 

 trespassed recklessly in all directions and thoroughly enjoyed them- 

 selves, but specimens of Cupido nwiima (as indeed of almost every- 

 thing else) were few and far between. However, the bee orchis 

 {Ophrys apifera) was found freely, whilst among Lepidoptera the 

 species most worthy of note was Asthena /uteata, which occurred 

 sparingly. In one warm, sheltered corner, common butterflies, such 

 as Epinephele ianira, Polyofumatiis icarus, etc., positively swarmed, 

 in striking contrast to the prevailing scarcity elsewhere. 



The other party were successful in securing several species of 

 Mollusca, and noticed many of the characteristic and interesting 

 plants peculiar to the chalk, some of which are enumerated later on. 

 Amongst Lepidoptera they also found a few Asthena /iiteata, one 

 specimen of Melanippe procellata, and some "plumes." 



The two parties met near Falcon Bridge, and strolled back to a 

 capital tea at the " Duke of Wellington," returning home by the 

 9.13 p.m. train from Horsley. 



The detailed list of insects, })lants, Mollusca, etc., observed is as 

 follows : 



Lepidoptera. 



Epinephele hyperanthus (a few just out), Cupido minima (a few), 

 Aletrocampa mat-i^aritaria, Zonosoma /inearia, Cal>em pusaria, Cory- 

 cia biinaculata [taminata), Asthena luteata (about a dozen in all), 

 Acidalia aversata, Melanippe proce/iata (one only), Scoparia dubita- 

 iis, Crambus pascueiius, C. per.'e/ius, C. pratellus, C. hortuellus, 

 Oxyptiius parvidactylus, Aciptilia baliodactylus, Eupix cilia dubitana, 

 Euchroniia purpuratia, etc. 



The larvje oi Depressaria heracleaiia were common on flowers and 

 seeds of chervil, and the larvae of Botys urticalis were unusually 

 abundant on nettle. 



