Article beginning on page 27.
Psyche 6:27, 1891.

Full text (searchable PDF)
Durable link: http://psyche.entclub.org/6/6-027.html

The following unprocessed text is extracted from the PDF file, and is likely to be both incomplete and full of errors. Please consult the PDF file for the complete article.

February 1391.1
PSYCHE.
other Orchelimum. The elytra are so
strongly reticulate that they look rough. In
the female they are peculiar in having the anal field form a distinct angle (as in Scud- deria) with the rest of the elytra. In the male they are peculiar in that the posterior vein of the stridulating apparatus is trans- verse instead of oblique as in the other spe- cies and only half the length of the adjacent vein on the right instead of twice as long as it is usually. The posterior femora are
slender and armed below on the posterior half with several small spines. The ovipos- itor of the female is long, slightly curved on its upper side and slenderly acute.
This very marked and handsome spe-
cies I found on the banks of Rock River
near Cleveland in Henry County. The
specimens upon which this description
is basedwere found in a clump of rank
growing Sagittaria variabilis which
grew in the angle of an old wall that
had once formed a part of the founda-
tion of a mill. A peculiarity in the
stridulation attracted my attention and
led to the discovery of this as well as
the preceding species. I was passing
this forementioned clump of weeds in a
canoe when the peculiar stridulation fell upon my ear and I at once proceded to
investigate the cause. These specimens,
unlike any Orchelimum with which 1
am acquainted, flew about from one
broad leaf to another. The song has a
new note in it. It may be represented
as follows : zi/-zip kr-ze-e-e kr-ze-e-e, the last part of the song not lasting
more than a half to three quarters of a
second and is always preceded by the
sound which I represent imperfectly by
kr. I have found this species in no
other place and it must be very rare as
its unusual note would have betrayed it
to me if I had ever been near it. Two
males and two females taken August
19th.
41. Udeojsylla nigra Scudd. I have
found this species not uncommon in
woods from the first to the middle of
June.
42. Ceutho/h/lus maculatus Say. A
rare species at Moline, a few specimens
taken in June.
43. Ceutho/hilus lafens Scudd. Not
uncommon in the latter part of June.
44. Ceutho/hi/us nig-er (?) Scudd.
I have a single immature specimen
which I refer to this species.
45. * Cez~fho$hiZus gracil//es Scudd.
Mr. S. H. Scudder gives Southern Illi-
nois as a locality for this species. I
have not identified it.
MARINE INSECTS. Those interested in
this somewhat restricted field will find in last year's Revue biologique of Lille an interest- ing contribution to the subject by Prof. R. Moniez, entitled Acariens et insectes marins des c6tes du Boulonnais. Six species of
Thysanura of four genera, one of Coleoptera (~icral~kma) and one of Diptera (Chiron- omus) are recorded.
THE TRUSTEES OF DARTMOUTH COLLEGE
have recently established in the agricultural department a chair of entomology and zo- ology, and filled it by the election of Dr. Clarence M. Weed, now in charge of the
entomological department of the Ohio Ex- periment Station at Columbus. Professor
Weed is also editor of the entomological de- partment of the American naturalist.




================================================================================