COCCIDAE OF OHIO. 
=~! 
~I 
should be transferred to a drop of water upon a glass slide. 
(Often under the seales of Chionaspis will be found a great 
quantity of eges and the female shrunken into the very tip of 
the scale.) After sufficient have been procured in this way, it 
is un easy matter with a medicine dropper and a strong solution 
of KOH (Potassium hydroxide) to run off the specimens into a 
test tube, in which they should be boiled until clear and trans- 
parent, (sometimes it is necessary to prick a hole in the specimens 
to allow the body contents to escape.) Before the KOH solution 
cools, the cleared specimens should be run through 50 per cent. 
and 100 per cent. aleohol. Now they can be put on a slide in 
proper mounting position, and the excess of alcohol can be taken 
up with strips of blotting paper. Allow the alcohol to evaporate 
and then put on several drops of Xylol; after a few moments 
the Xylol may be removed and the specimens are ready for 
mounting in the usual manner, in Canada balsam. 
If the specimens are of the nature of Lecaniwms or ‘‘ Mealy 
Bugs,*’ i. e. not separable from the scale, the entire insect must 
be prepared and mounted in the foregoing manner. 
Complete data as follows should be given on proper labels :— 
scientific name, host, locality, date, other interesting notes and the 
collector’s name. 
INDEX TO GENERA 
ALSO A FEW COMMON NAMES OF ECONOMIC SPECIES. 
Page Page 
ENSIUGIOUUIS pe seere ck trae eo mee 55 WeEpIGOSApNGS | aa-dere cele eee rer (3! 
Asterolecaniuime es. se ames - 33 IMeGAaly=Bilesrracre actos sceancle ote 41 
JNTMECEIE) OS Boro ote aim cen ero kee 53 DS TERS ON te deoea BD SO Onin ee 3 
ChionaspisSseseee sore cece 3 (QAI) PAetaeb ond case ae iee 3 
@hrysomiplhiallis wee rer ere er = 69 Parlaonlial xrcrs aioe renee oaceecor ss 75 
Comstockielila, Ges... 45... 2 69 PHewaACOCCGUS) 25sec ene sakes = 3 
IOV CAIAG) COC TORO OOD SIO 4i IPSCUGOCOCCUS sacs oe ee: 41 
DAS PISA se ey crete ctoatenenee ‘Tall Sealewi@umtisis west cle oo eles oe 64 
MGI OCOGCCUISwss cies selec esse 3 ScalessHorbeSere.scwes oeiacusieere 60 
HST OTEITIE Ae yeeeeste et wex cus oka s tees seo) ations 54 Seale, Oyster-shell........... 74 
OSSD AIAN jeter tl aecorec law oe eae 3 SYGAIIGS, “IPAra aS 6 Go oA cea on SL 
FLEMICMIONAS DIS see serene cle 3 SeallewROSC stack ee eke ae haces 53 
PLOW AT CUA) eect rece ookekeere ars) «re 51 Seale. San’ JOS... 52.2628. 65 
POTTING SO retire ones ecu cee eles sieerere oe, Seales S Clilbevrec mieten. sehen 46 
