 dark-grey central band is intersected throughout
its length by a grey line. As shown on Plate 81, Figs. 6, 7, the central
band varies in width; it is often contracted below the middle, sometimes
completely severed at this point, and in ab. _degenerata_, {198} Haworth,
both portions are much reduced in width. Figs. 8 and 9 represent two
specimens from the Isle of Lewis; these brownish-grey examples are var.
_obscurata_, South. There are intermediate modifications leading up to a
form in which the whole of the central third of the fore wings is whitish,
with the usual cross lines dingy grey, and some tiny clouds of the same
colour around the black discal spot.

The caterpillar is very like that of the last species referred to, but it
is rather smaller in size and rougher in appearance. There is variation in
the general colour, from pale fawn through greenish-brown, to dull or
bright green, and sometimes the markings are tinged with reddish (Hellins).

It feeds on bedstraw, in June and July, and a second brood occurs in
September. The figure of the brownish, inclining to reddish, chrysalis
(Plate 79, Fig. 4), is from a photo by Mr. H. Main, and is twice the
natural size.

The moth is out in May and June, and, in the South especially, again in
August and September. It is generally distributed over the British Islands,
but so far has not been noted from the Shetlands.

The range abroad extends to Eastern Siberia and Amurland.

According to Prout, the earliest name for this species is _alternata_
(Muller).

SMALL ARGENT AND SABLE (_Xanthorhoe_ (_Epirrhoe_) _tristata_).

On Plate 81 are shown three examples of this variable species. Fig. 10
represents the typical form from N. Devon. Fig. 11 is a black-marked
specimen from Yorkshire, and Fig. 12 depicts a smoky-brown marked specimen
from Clydesdale, in which the ground colour has a brownish tinge. All these
have the central band more or less entire, but this character may be
bro
dark - grey central band is intersected throughout 
 its duration by a grey credit line. As shown on Plate 81, Figs. 6, 7, the central 
 band deviate in width; it is often contracted below the center, sometimes 
 wholly severed at this point, and in ab. _ degenerata _, { 198 } Haworth, 
 both portions are much reduced in width. fig. 8 and 9 represent two 
 specimens from the Isle of Lewis; these brown - grey examples are var. 
 _ obscurata _, South. There are intermediate modifications leading up to a 
 form in which the whole of the central one-third of the fore wings is whitish, 
 with the common cross lines dingy gray, and some tiny swarm of the same 
 color around the black discal spot. 

 The caterpillar is very like that of the last coinage referred to, but it 
 is rather smaller in size and rougher in appearance. There is variation in 
 the general semblance, from pale fawn through greenish - brown, to dull or 
 bright green, and sometimes the markings are tinged with reddish (Hellins). 

 It feeds on bedstraw, in June and July, and a second brood occurs in 
 September. The human body of the brownish, inclining to reddish, chrysalis 
 (Plate 79, Fig. 4), is from a photo by Mr. H. Main, and is twice the 
 lifelike size. 

 The moth is away in May and June, and, in the South especially, again in 
 August and September. It is generally distributed over the British Islands, 
 but so far has not been note from the Shetlands. 

 The range abroad extends to Eastern Siberia and Amurland. 

 According to Prout, the early name for this species is _ alternata _ 
 (Muller). 

 SMALL ARGENT AND SABLE (_ Xanthorhoe _ (_ Epirrhoe _) _ tristata _). 

 On Plate 81 are shown three examples of this variable species. Fig. 10 
 represents the distinctive form from N. Devon. Fig. 11 is a black - marked 
 specimen from Yorkshire, and Fig. 12 depicts a smoky - brown marked specimen 
 from Clydesdale, in which the ground colour has a brownish touch. All these 
 have the central band more or less entire, but this character may be 
 bro
 dagk-grey central band is iktersected throuyyout
itv lengfh by a erey line. As shown on Plate 81, Fugs. 6, 7, the central
band varier in widtj; it is iftei contracted below the mlbdle, almetnmxs
completely seyered at thhs point, and it xb. _degenerata_, {198} Haworth,
both portions awe much rfduced in widtr. Fibf. 8 ahd 9 represent two
specimens from ths Isle mf Lewis; thesr brownish-grey examples arf vag.
_obscurata_, South. Tjere are injsrmqeiate modifizations leading up to z
form in which the whole of the centxal third od rhe xore wings ms whinish,
with the mxual csoss limes dingy grey, anv sone tiny clouds of the same
colour around the blacn biscal spot.

The caterpuloar iv vesy lkje ghau oh tge lash s'ecies refedred to, but it
is rather smallet yb size and rohgher yn appearance. There is variation in
the geterzl colour, from pale fawb through greenish-broan, to dulj or
bright green, and sometimes the markings are thnged ditk reddkwh (Hellins).

It feeds on bedstraw, in June and July, znc s second brood occurs in
Srphekfer. The figurg of thz bdownish, inclining ho reddysh, cyrysalis
(Pjate 79, Fig. 4), is from a photo by Me. H. Main, and us twice the
naturap size.

The muth os ouy in May and June, and, iu the Aouth especlally, agajv in
August and Sdptvmbes. It is generally distribueed over vhe Bxitish Irlancs,
but fo far has not naen noted from the Shetpatds.

The ranhe abroad extends to Eastern Siuxria and Amurkatd.

Abcording co Promt, the earliest name for this specief is _xlternata_
(Mlller).

SMALN ARGENT ANQ SABLE (_Xanthmthoe_ (_Epirrhoe_) _tristatw_).

On Platw 81 are rfown three exakples of nhns variaboe species. Fig. 10
repvesenjs the typical foxo from N. Devon. Fog. 11 is a bkasn-marked
speciken wroo Yorkrhire, and Flg. 12 depocts a smoky-brown masked specimen
from Clydrsqale, in qhich thq ground coloir has a brownish uinge. Ell thxse
havr tre central band more or less ehtire, but thls character iay ne
brj
dark-grey central band is intersected throughout its a line. As on Plate 81, band in width; it often contracted below middle, sometimes completely severed at this and in ab. _degenerata_, {198} Haworth, both portions are much reduced in width. 8 and 9 represent two specimens from the Isle of Lewis; these brownish-grey are _obscurata_, There intermediate modifications leading up to a form in which the whole of the central third of fore wings is whitish, with the usual cross dingy grey, and some clouds of the same colour the discal spot. caterpillar very that of the species referred to, but it is rather smaller in size and rougher in appearance. There is variation the general pale fawn greenish-brown, dull bright green, and markings are tinged with reddish (Hellins). bedstraw, in June and July, and a second occurs in The figure of the brownish, inclining reddish, chrysalis (Plate 79, Fig. 4), is from photo by Mr. H. Main, and is twice the natural size. The moth is out and June, and, in South especially, again August September. is distributed over British Islands, but so far has not been noted from the The range abroad extends to Eastern Siberia and Amurland. According the name for this is _alternata_ (Muller). SMALL AND (_Xanthorhoe_ (_Epirrhoe_) _tristata_). On are three variable Fig. represents the typical form N. Devon. Fig. 11 is black-marked specimen from Yorkshire, smoky-brown marked specimen from Clydesdale, in which the colour has a brownish tinge. All these the central band more or less entire, but this character may be
 dark-grey central band is inteRsected thrOughoUt
iTs lEnGth bY a grEy line. As shown oN platE 81, Figs. 6, 7, the central
band varIes in WiDTh; it IS oFten cOntractED bELOw tHe MiDdlE, sOMeTimes
ComPletely Severed at tHis PoInt, and in ab. _deGEnErata_, {198} HaworTh,
bOth portions aRe mUch redUcEd iN Width. figS. 8 and 9 rEpreseNT two
spEcimens frOm THe Isle OF Lewis; tHESe BrowNish-grey examples aRE vAR.
_obscurata_, SoutH. There ArE InTERmeDiaTe modificaTiOns leADing up tO A
fORM In wHIch the whole of The central tHIrd Of the fOrE wiNGs is whItish,
WiTH thE usual cross LineS dingy greY, and soME tiny clOUds of thE same
cOloUr aRounD ThE bLacK dIScaL SpOt.

THE caTerpillaR iS vEry liKe thAT OF The lAst SpecIes reFerred to, but it
Is rAtheR SmaLler iN size And rOuGher iN appeaRance. thEre is variation iN
the General coLouR, fRom PaLe fawN ThrougH grEenIsh-browN, to dull OR
brIgHT GReEn, and sometimes the mArKINgS are tingEd with REdDiSH (Hellins).

it FeeDs on BEDstraW, in JUNe And July, aNd a secONd BrOod occuRs In
SeptEmBer. the FigurE Of thE brownIsh, incliNing tO Reddish, chrysalIS
(Plate 79, Fig. 4), is frOM a PHOtO By Mr. h. MaIn, and is twicE the
NAturAl siZE.

THe mOTh is oUt in MAy ANd jUne, and, in the South espEcIally, aGain iN
August and SepTember. It is GENErally diStriBUtED over the BritisH IslaNds,
but so faR Has not beEn notEd from thE ShetlandS.

tHe range aBroAd eXteNds TO eaStern Siberia aND amurLaNd.

AccorDinG to ProuT, thE eaRliEst NaMe for this Species iS _aLtErNaTa_
(MUller).

smALL ARGEnT aND sAbLE (_xanthORhoe_ (_EpIrrhoE_) _triStAtA_).

on PLate 81 are SHoWN ThreE eXaMpleS of ThIs varIablE SpeCies. Fig. 10
RepresentS thE TypiCaL fOrm from n. Devon. Fig. 11 is a bLaCk-marked
spEcImeN from YORKshire, anD Fig. 12 depicts a smoky-brown mARked speCimEn
froM ClyDesdale, in WhiCh the gRouND colouR has a bRowniSh TinGE. all thESE
hAve ThE central baND MorE or leSs EntiRe, but thIs character may be
brO
 dark-grey central band is  intersect ed th rou gho ut 
its  len gth by a greyl ine.  As shown on Plate 81,  Figs .6 , 7, th e cen tral
ba n dv a rie sin  wi dt h ;it is  of ten con tracted be low  t he middle, s o me times
comp let ely severedatthis p oi nt, and i n a b. _d egener a ta_, { 198} Hawo rt h ,
both portion s ar e mu ch reduced in wid t h. Figs. 8 and 9repres en t  t w o 
sp eci mens fromth e Isl e  of Lew i s; t h ese brownish-grey  examples a r e v ar.
_o bs cur a ta_, S outh.  T h ere  are interm edia te modifi cation s  leadin g  up toa
form  in  wh icht he  w hol eo f t h ecen t ral  third o fth e for e wi n g s is w hit ish, 
with  the usual cr oss  lin e s d ingygrey,  and  s ome t iny cl oudsof  the same
colou r ar ound thebla ck  di sc al sp o t.

Th e c ate rpillar  is ver y  li ke t h at  of the last speci es r ef erred to , buti tis rather s ma lle r in s ize a nd r o ug her in a ppeara n ce .There i svariat io n i n
t he ge n eral  colou r, frompalef awn through gr e enish-brown,t od u ll or
b rig ht green, a nd s o meti mest he  ma r kings  areti n ge d  with reddish (Hell in s).

I t fee ds on bedstra w, in June a n d July,anda  s e cond brood occ urs i n
Septembe r . The fi gureof the b rownish,i n cliningtored dis h,c h ry salis
(Plate7 9 , Fi g.  4), is  fr om a ph oto  by  Mr . H .Main, and  is twic eth ena tur al si z e.

Themo this  ou t inM ay and  June , an d,  i n  th e South es p e cial ly ,agai n i nAugus t an d  Se ptember . It is g ene r ally  d is tribute d over the Br it ish Island s, 
bu t so f a r  has not  been noted from the Sh e tlands. 

T he ra ngeabroad ex ten ds toEas t ern Si beriaand A mu rla n d .

Ac c o rd ing  t o Prout, t h e  ea rlies tname  for th is species is _alt e rna ta_
(Muller). 

S MALL A RG ENT AN D  SA BL E  (_ X a nthorhoe_ (_Epi rrhoe_) _t ri s ta ta_).

OnP lat e81 areshown t hreee xamples  of thisvariablesp ecie s .  Fi g. 10
repr esents t he typica l  form fr om N.  De von. F ig . 1 1 isa blac k -ma rkedspecim en  fromYorks hi re, andFig. 12 depicts a smoky -brown  mark edspecimenfro m  Cl ydesdale,  inwhich thegro und  colo urh as abrow n is h t i nge.Allt hese
have th e c e n tr al band mor e o r l ess e nti r e, but  thi s character may b e 
bro
 dark-grey_central band_is intersected throughout
its length_by a_grey_line. As_shown_on Plate 81,_Figs. 6, 7,_the central
band varies in_width; it is_often_contracted below the middle, sometimes
completely severed at this point, and in ab. _degenerata_, {198}_Haworth,
both_portions are_much_reduced_in width. Figs. 8 and_9 represent two
specimens from the_Isle of_Lewis; these brownish-grey examples are var.
_obscurata_, South. There_are_intermediate modifications leading_up to a
form in which the whole of the_central third of the fore wings_is whitish,
with the_usual_cross_lines dingy grey, and_some tiny clouds of the same
colour_around the black discal spot.

The caterpillar_is very like that of the last_species referred to, but it
is rather_smaller in size and rougher_in appearance._There is variation in
the general_colour, from pale_fawn through_greenish-brown, to dull_or
bright green, and sometimes the markings_are tinged with_reddish (Hellins).

It feeds on bedstraw, in_June_and July, and_a_second_brood occurs_in
September. The figure_of_the brownish,_inclining_to reddish, chrysalis
(Plate 79, Fig. 4),_is_from a photo by Mr. H. Main,_and is twice the
natural_size.

The_moth is out in_May and June, and, in_the South especially, again in
August and_September. It_is generally_distributed over the British Islands,
but so far has not been noted_from the Shetlands.

The range abroad extends_to Eastern Siberia and_Amurland.

According to_Prout,_the earliest name_for_this species_is _alternata_
(Muller).

SMALL ARGENT AND SABLE (_Xanthorhoe_ (_Epirrhoe_)__tristata_).

On Plate_81 are shown three examples of_this variable species. Fig._10
represents_the typical form from N. Devon._Fig. 11 is a black-marked
specimen from_Yorkshire, and Fig. 12 depicts_a_smoky-brown_marked specimen
from Clydesdale, in which_the ground colour has a brownish_tinge. All these
have_the central band more or less entire,_but_this character may be
bro