Sacramento daily record-union. [volume] (Sacramento [Calif.]) 1875-1891, 1884-10-04
METEOROLOGICAL.
B0RERS WHICH iNFEST SHADE
AND ORNAMENTAL TREES.
Description of the Insects in Vari-
Gus Stages Effects OF Their
work. emedies-Etc

WEEK LY UNION by Matthew Cooke.
The larva or caterpillar of the locust car
penter moth (HRc,acs Yobinie), when full
grown. measures nearly three inches III
length; is of Il reddish color, except the
head, which is black; the body is some
what flattened, and partially covered with
long. fine hairs. In the larva state this Is a
very destructive species and its work is
readily recognized. The burrow OF the
fl1ll-grown larva is large enough to admit
the little finger The perfect insect appears
in June and July The females deposit
their eggs in the crevicos OF the bark, and
are fastened by glutinous substance. The
Young larva. when hatched, burrows into
the inner bark, and as it acquires strength
il penetrates into the sap-wood, and finally
reaches into the hardwood near the center
or pith Of the tree, and from there it bores
upward As it increases in size it is evil
dent il moves backward and forth in its
burrow, gnawing the sides until The eXca-
walton is sufficiently large for its comfort.
When the larva is full grown and ready to
assume the pura state, it forms burrow
reaching the bark, thus providing ready
escape for the perfect insect when il
emerges from the pupa
ITS TRANSFORMATIONS.
OF the transformations Of this insect DR..
Fitch writes: AS the moth, into which
this worm changes, possesses no jaws or
other implements by which it is possible
for ii to perforate the wood, it is necessary
for the worm to prepare way for its tu-
t,lrc escape from the tree; and tue provls-
ions which il makes for this end are truly
interesting, indicating that the worm has
q clear perception Of whaI It's future condI-
tons and requirements will he. both III It's
pGHa and persec, state. This is the more
surprising when We rectr to the TACT that
since lis infancy this creature has been
lying deeply beJtled in the interior of Il
tree, the only act OF It's life having been TO
crawl l;zily around It's cell and gnaw the
wood there when impellcd by hunger
How does it now come 10 do anything
different from what it has been doing for
months and years before? But, having its
growth and the time drawing near 10 have
it changed into puPa or ciIrysais, we see
it engaged in new work. 1t now bores Il
passage from the upper end of its cell out
ward through the wood and bark till only
q thin scale of the brittle dead outer bark
remains IL is usually at the bottom Of
one Of the large cracks or burrows in the
bark dat this passage ends, whereby the
hole inside is less liable to be discovered ny
birds The worm then diligently lines the
walls of this hole With silIlen threads inter
spersed with its chips, and forming rough
surface resembling felt as it withdTawS
itself ba X wards for distance of about
three inches, thus placing itself beyond the
reach OK any bird or other enemy outside
Of the tree, should its retreat be discovered;
and it here inCloseS Itself III a cocoon which
it spins of silk, OF a long oval FORM having
the end towards the cater opening much
thinner and its threads more loosely
woven In this cocoon ii throws off It's
lorva skin and then appears in its nymph
OF pnpa,9orm.
Ii is supposed that the time that clapses
whcn the young larya is Matched until it
assumes the pupa state is about three
wears 1t remains in the pupa state about
fifteen days.
THE PERFECT INSET.
The male moth is much smaller than
the female when compared thcv i;frear TO
belong TO different speciesl, coiol gray,
formed by a mixture OF black and white
scales Antenn;e, color black, many point
cd and tapering; abdomen, form cOnical
anu t4i!d' w Iic 'cdiS'i - INV" "'iio'
legs coi-r black iofe.wihgS' gray ana
Tl2Ved WIN DiacK'Sh h,,eS H'ii'l-N my,
black, with p9Stert2f i'iii rlch orange
color bardcrcd with black line III the
border Of the wing The female moth IS
lighter in color than the male There is no
yellow on the hind wings, and the legs are
graz. with black bands at the joints. Length
OF body ! ! inches. expauSe OF wings nearly
q inches have taken the male and
fenlaie insectS-Ihls season s-'thu no" ue-
scribe them as, al al Vne i'SeclS Whose
iaryle are "oud-H'fef7, inc iiioSt per
niciou5 and dangerous 10 tht lreeS' a
great zeal OF the damage caused ny tiilS
insect IS by The empty burrows carr. ing
tie Tain-w'.ieF 70 Tie center ef the trees ana
s'-uaes me Woo@ 10 decay
THE OAK co9sUs.
T t,o,,o cs,,,,--j .a,,ar,l If those moths
yJ,.,r,,ts,- fa,s,.< -,,.,.,..;,eyd,) This season
-; ,bo r,rIor ,rens ia tbis c;tv I'm, have
Mt vat fo5rd any NJ their larvr In an
,lso,:,n..,. i resembles tho carneu1er motb
M i ,1,urb smaller. the laI.y,p are two or
l,ron ,-ea~s j., ,ttainin,, The fnll growth.
-.
horn iAIiS' W. "o''''' N''Ni->9 "A9''
The horn tails belong TO the family Lro-
o>rid,f OF the order HgRcpoptaG tor MEM
byane winged. Bees wasps, etc. are typl-
cal insects OF this order. The abdomen OF
the female insect il furnished with a
iance-furIned appendage or oyipositor, and
when about to lay Der eggs, 10y repeated
wrigg.inc motions she drives the horer or
oyip8sStur through the bark into the WOOD
10 the depth Of about half an inch. When
satisfied with the depth she then drops an
egg therein. When the Young larva is
Matched it borcs into the wood and is de
structjye TO the tree. In some cases they
infeSt a tree in such numbers as 10 destroy
IL. Some years ago / noticed some large
trees growing on the street opposite the
Union Hotel in Chico that We're attacked
by these insects and destroyed. The typi-
cal insect OF this family IS the ffc"e1 Co
t'''4o'a, co.nlii3niE hlioMn d '''o Pigeon
No, =, M. NJ, insect Head
All thy vcliovi.b brown thick anten-
~, s;..asn -ioirtcI y. ,b,lnnen bl1Iish black.
l-i,,,.1ri.. oyn,i,o,,ted hv siv yellow rings
cytre,nitv vcllo,y oyinositor short and
et,r,. ,,.i,,es ooanuc b~'.v-n and clouded ;
l[,-s a,tI fsct yeliouisb length of body
ats,,'t ,nc i,,rh srJ =, on,rfnr cxnanse of
,.;,,s,s .ho,,t ~, ireie'
Tfe dissertation Of tLn s,ecics have cap
tr-sd brra thai il dom. ininrv To trees is as
follows Head and thorax hluish black
bas,i SEGMENT of abdomen metallic blue.
,3evt SEGMENT bI;iish black. and the remain
~, see.I,,,rts 1srl, rel. a,,.cnn, and Ie.rs
bi.,i- o,.;,,osito- ,,I,,,,t tlrnc- fnurths of an
;,,cI, II, lsr,.fb san,e I.nrtb or body and
oyranse ct wing. and form as pigeon
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