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small portion of Laporte county and the greater portion of Porter and 
‘Lake counties, and will reappear next in 1905. 
Brood VIII is almost entirely confined to the southern counties and 
was really very abundant in 1889 only in Harrison county. I have indi- 
cated by a dot on the map the localities where I know from personal 
knowledge the insect occurred, to which localities Mr. C. L. Marlatt, in 
Bull. 14, N. S., U. S. Dept. Agr., Div. Ent., has added others which I have 
indicated by aO. The occurrence in Tippecanoe county was at Lafayette, 
a single female haying been found by one of the sons of Dr. E. Test of 
Purdue University. This is the weakest in point of numbers of the three 
broods, and will in time become totally extinct, largely, at least, owing 
to the attacks of the English Sparrow, Passer domesticus. It will next 
appear in 1906. 
Some Insects BELONGING TO THE GENUS IsosoMA, REARED OR CAPTURED, IN 
Inprana. By F. M. WEssTeER. 
Isosoma grande Riley. This was reared from wheat at Oxford and Lafayette, 
and was the first proof secured of the presence of a dimorphism, and alternation 
of generations in Isosoma tritici, as it was then known, the latter being now known 
as minutum, the wingless spring and winter generation; and the former as the 
winged, summer generation, the one having been bred from the eggs of the other 
by myself. 
Isosoma captwum Howard. Captured from Poa pratensis at Lafayette. Type. 
Isosoma maculatum Howard. Captured with the preceding. Type. 
Isosoma tritici Fitch. Reared at Lafayette and elsewhere, and collected on 
grass at Lafayette. 
Eurytomocharis eragrostoidis Howard. Reared at Lafayette from the stems of 
Eragrostis pocoides. Type. 
For descriptions of these species, as well as illustrations of them, see Bulletin 
No. 2, Technical Series, Division of Entomology, U. S. Dept. Agr., by Dr. L. O. 
Howard. 
LAKE County Crow Roosts. By T. H. Batu. 
[Abstract.] 
The main roosting places in these later years, so far as ascertained, 
are two. One is five miles south of Crown Point, in a’pine grove covering 
an area of about four acres on a large farm well out, in what was once 
