9061 -Z A' 
‘The Ohio T^aturalist, 
PUBLISHED BY 
The Biological Club of ihe Ohio State Unvversity. 
Volume VI. APRIL, 1906. No. 6 
TABLE OF CONTENTS 
Osborn- Descriptions of Two New Cycadas from Louisiana 497 
Fischer— Ecological Observations on the Flora of the Shale Bluffs in the Vicinity of 
Columbus, Ohio 499 
Claassen— Corrections to the Key to Liverworts 503 
Moseley — Notes on the Former Occurrence of Certain Mammals in Northern Ohio 504 
ScHAFFNER— Winter Buds of Ohio Trees and Shrubs 505 
Van Hook— Ascochyta pisi — A Di.sease of Seed Peas 507 
ScHAFFNER-The Classification of Plants. Ill 513 
Morse— Key to Ohio Alders in Winter Condition 517 
Stockberger— Further Notes on Anthurus borealis 517 
Estabrook— Circular of Inquiry with Reference to the Present Status of the English 
Sparrow Problem in America 518 
Metcalf — Meeting of the Biological Club 518 
York 
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Garden, 
DESCRIPTIONS OF TWO NEW CICADAS FROM LOUISIANA. 
Herbert Osborn. 
The species of Cicadas described here have come to me from 
Louisiana and inasmuch as one of them appears to be of econo- 
mic importance and the other to possess points of special biologic 
interest, it seems desirable that they should be described. 
Cicada erratica n. sp. 
Apparently closely related to Cicada nigriventris Walk but differing 
in details of opercula and in coloration. Sordid green with fuscous and 
blackish markings. Length to tip of abdomen 21 mm., to tip of folded 
wings, 36 mm., width of humeri, 9 mm.; width of eyes, 8 mm. 
Head scarcely as wdde as pronotum, vertex scarcely longer at middle 
than next to eye, pronotum with marginal keels slightly expanded pos- 
teriorly. Elytra reaching half their length beyond the tip of abdomen. 
Color, — green, tinged with yellow; a transverse band from eye to eye 
the posterior projection including ocelli, upper surface of front its central 
portion between the transverse bars, tip of clypeus, a central divided stripe 
on pronotum, some lateral patches, marginal patch on posterior lobe, four 
cuneiform marks, base of scutellum at sides, terga of abdomen except 
hind margins, apex of rostrum, tarsal joints, basal segment of female, 
central patch on last ventral segment, ovipositor and tip of pygofer, dark 
fuscous or black. Elytra, transparent, veins green to about the middle, 
black on apical half, veins of wings black to a point somewhat nearer 
the base. 
