186 
THE SUBSTITUTE. 
Grapbolita Paybulliana,* 
„ iiijrvouia.culana, 
„ oblusiina,* 
„ ii®vana, 
Pcedisca profundana, 
„ opblbalniicaiia, 
Epbippipbora dissiinilaiia, 
„ I'a'iieana, 
„ iiijrrocostana, 
„ ifiragonana, 
„ obscurana, 
Ileiisiniene fiinbiiana, 
Dicrorainpba Artemisiana;* 
Catoptria Wesiwoodiaiia, 
Eupoecilia sodaliana, 
Ai-fryrolepia Dubrisana. 
— J. & £. Smith, Turkey Street, 
Worcester. 
[We have struck out of tbe list 
sent to us tbe names of all those 
species which are common every- 
where.] 
COMMUNICATIONS. 
Leiocampa dicteea and die- 
taoides , — I deemed it proper to 
procure evidence corroborative of 
my own respecting these species, 
and I now hand you the following 
extract from a letter received from 
Mr. J. B Hodgkinson, of Pres- 
ton: — “In reply to yottr qtieries 
about L. dictaa anil dictanides, 
my information is that I have 
specimens of dict<ea bred from 
brown larvae. Dictaioides we never 
bred at Carlisle to my knowledge ; 
still it may ocettr there. We used 
to stippose we htid both species, on 
account of the existence of green 
as well as brown larva?. We then 
had Wood’s plates to go by, and 
could really distinguish no differ- 
ence: something like Acronycta 
Psi and iridens which are only 
distinguishable by the difl’erenco 
in their larvae. We then bred 
dictcea from brown larvae obtained 
from off birch ! ! This is what you 
want to know; — also dicUea from 
green larvae off the pojilar, and 
s])ecimens of both bred at that 
time I still possess. As an in- 
stance of my non -knowledge of 
tbe difference in the perfect in- 
sects. I sent fourteen years ago to 
Mr. Edekston one specimen bred 
from brown larva as dictceoides, 
which is only dictum. Since then 
my knowledge of tbe difference of 
the perfect insect is such that I 
could pick one dietaoides out of 
five hundred dictaa : had I not 
still possessed original specimens I 
might have fancied some error of 
judgment might have occurred. 
My brother vvas chief larva-hunter, 
and he can bear me out, so can 
my father, and I doubt not Mr. 
Cooper can bear the same testi- 
mony.” With your permission I 
will briefly review the case. My 
statement is that I have taken 
brown and green coloure<l larva; 
off the birch, and bred dicteea only. 
I never heard of a dictanides 
being bred in Cumberland, but do 
not affirm that it has not. ilr. 
Hodgkinson, of Preston, has bred 
dictaa from brown law® taken off 
the birch, and from green larwe 
taken off the poplar: his father 
and brother have both done the 
same. iM r. Gregson says the law® 
vary from light drab to brown, 
and will feed on birch. Mr. Crewe 
says larv®, sometimes brown and 
sometimes green, feed on poplar ; 
dictanides on bitcli. Mr. Double- 
day bred f/tetea from brown larv®, 
which fed on jioplar. Mr. Logan 
does not allude to their food. .Mr. 
Smith only alludes to dictanides. 
Mr. Greene describes the differ- 
