Cambridge Entomological Club, 1874
PSYCHE

A Journal of Entomology

founded in 1874 by the Cambridge Entomological Club
Quick search

Print ISSN 0033-2615
January 2008: Psyche has a new publisher, Hindawi Publishing, and is accepting submissions

Article beginning on page 196.
Psyche 7:196-199, 1894.

Full text (searchable PDF)
Durable link: http://psyche.entclub.org/7/7-196.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.

19 6 PSYCHE. [February 1895.
November, Fischer (Orth. Eur., 369,
374) referred the former species to his
new genus PIatyphyma and the latter
to Pezotettix. Fisclier has been gener-
ally followed, but it is plain that Platy- phyma must give way to Pelecyclus,
which in its term must yield precedence
to Pezotettix ; of which giornae becomes the type, while pedestris becomes the
, type of Podisma. The numerous
species, therefore, which in recent
years, both in this country and in
Europe have been referred to Pezotettix
must be classed under Podisma.
The early use of tlie term Podisma
previous to 1853 and after 1829 (other
than we have given) also sufficiently
confirms the appropriateness of restoring Podisma for the species now generally
included in Pezotettix ; for Fischer de
Waldheim in 1846 (Orth. Russ. 249-
253) used it for six specie& of which
the first three belong to Pezotettix
of modern writers, the next two to
Chryochraon, while the last is not rec-
ognizable. [The second species, P.
j?wimn.oa Motsell., has also not been
recognized by later writers but I pos-
sess specimens from different places
in Transbaicalia] ; Borck in 1848
(Skand. ratv. ins. nat. hist., 87-92)
refers to it pedestris and frigida ; and finally 13. Fischer himself first used it, in 1849 (15 Jahresb. Mannh. ver.
nat., $3) for frigida. His reason for
Inter (Orth. Eur., 365) note) supplant-
ing Podisma by Pcxotcttix cannot be
defended.
TWO NEW SPECIES OF ENTOMOBRYA.
BY F. L. HARVEY, ORONO, ME.
Entomobrya hexfasciata, n. sp.
Ground color greenish yellow. Body
clothed with short, downy hairs and nwner- ous long bowed plumose clubbed hairs,
which give the insect a shaggy app-earance. Head as long as broad. Square behind and widest in the posterior third.
A small, dark
spot tit tlic base ol' each antenna joined by a narrow line of the same color, but not
reaching the eye patches. Eye patches dark, narrow; three times as long as wide. Anten- nae stout, purplish. The terminal joint
pale purple throughout. The other joints tipped with dark purple, while the bases are pale yellow. The purple Lip is especially conspicuous on the basal joint. The very short basal ring is here ignored and the antennae described as only four jointed. The basal joint shortest, the third slightly longer than the second and the terminal ii half longer than the third. Body fusiform. Mesonoturn as broad as the head. Body
widest at the anterior suture of the fourth abdominal segment. The fourth abdominal
. segment not quite as long as the three pre- ceding taken logi-'tiler. There is no dark band dong the side of the body. Mesonotum,
inctauotiim aid second fibdotninal segment with broad fascia along the anterior border. Fimt abdominal segment marked along the
anterior border with a row of fine dots. Band on the third located in the ~~ziddle and nearly as wide as the segment. Fourth
segment with a band along the 'posterior margin: which connects with a triangular



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

February 18-95.] PSYCHE. 197
patch at the sides and extends along the median line into an obtuse point. Fifth
segment with a median, transverse, narrow band that arches backward or sometinies
covers the segment. Terminal segment
plain. Legs, under side of body and elater yellowish. Legs rather stout.
Elater long, slender. Mannbrium a fourth shorter than the mucroneh and dentes
together. Mucrones annulated. The whole
elater clothed with long hairs, a prominent one extending beyond the dentes.
Fig. I<
Measurements. -Total length, 1.52 mrn. ; head, .345 mm. x ,345 n:m. ; antennae,
,776 mm. ; ratios of joints 9: 10: n : 17; body 1.19 mm, long, .4 mm. broad at the fourth abdominal segment; ratios of segments
20: 10: 9: 12 : 12 :25: 10: 5. Elater total, .81 mm, ; n~anubrium, .345 mm. ; mucrones and dentes, ,465 mm.; long hairs on the legs, ,112 mm.; clubbed bowed hairs on body
often ,230 mm. ;
eye patches, 69 p X 25 p.
Other specimens measured were 1.22 mm.
and .93 mm., total length and the antennae .58 mm. ; ratio 5 : 6 : 6 :g and ,366 mm. ; ratio 4:6: 8: 13. Though smaller the color
patches were the same as on larger spec- imens.
Habitat. -Found during the fall in
moss in the woods upon the ground
or upon logs. Seems to prefcr very
moist situations. Several specimens
examined in 1891 to 1894. Orono
and Greenfield.
Mr. F. L. Harvey.
Distizptshing characters. - Re-
lated in habits to B. decemfmiafa
Pack. but seeking moie damp situa-
tions. We have never found them
a5sociated. It resembles in some
icspects B. multzyasciata, var. fil-
chella Ridley, but the coloi bands are
differently arranged. This species is
readily distinguished by the smaller,
thicker set body, which is widest at the fourth abdominal segment, the s~outei
legs and antennae, the nearly triangulat he'id, which is square behind, the
shorter antennae, the small eye patches, which are not joined to the patches at
the base of the antennae, absence of
markings on the side of the hend and
side of the body, the anterior position
of the bands on the body segments, the
row of dots on first abdominal segment
and the absence of markings on ihc
tei minal abdominal segment.
Remarks. -The hairs on the body
are brown by reflected light, especially upon the dark bands. The bands in
balsam specimens show dark purple
hut in life appear deep brown or black.




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

198 PSYCHE. [February 1895.
Thespecies is quiteactive and a good
jumper. The antennae on one specimen
had only three segtncnts ; a very short
basal one and a terminal as long as the
other two, which had the hairs arranged
verticillatcly. This may have been a
young specimen though the size was
large and the color hands typical. This
species has tlic short basal. ring making really fine joints to theantennae. This
basal ring is not shown in Einerton's
drawing Fig, I. Our species violates
the generic description of Rondani
by having the terminal joint of the
antennae too l01jg to be called subequal to the second and third. Also has the
fourth body segment somewhat shorter
than the three preceding. The drawing
Fig. I, enlarged 30 times, was made
, from a live specimen by Mr. J. 11.
Ernei ton ; the head was nlodified and the elaler drawn by the wiiter. The species
is nmied E hexfasciata on account of
the six conspicuous band? upon the
body segments.
Entomobrya pygmaea, n, sp.
Ground color pale yellow. M~u'ked with
purple bands. Body, ~ntennae and elater
clothed with long hairs. Body fusiform,
broadest at tlic metanotutn and much nar- rowed behind. Head oblong, a fifth longer thnn broad, rounded behind, widest at about the middle. The eye patches oblong, a third longer than wide and joined by a broad band that arches forward. Head not otherwise
marked. Antennae stout, purple. Segments in be ratio of 5 : 6: 6 :9, nearly. Mesonoturn broad, anterior edge, sides and posterior edge marked with a narrow band. Tendency to a median longitudinal stripe as shown by the projections on the anterior and posterior bands. Metanotum and the first three
abdominal segments bordered on the ante- rior margin, the color patches reaching to the band along the sides. Fourth segment with an interrupted longit~idin;-11 band which does not rcach the anterior border or band along the sides. Fifth and sixth segments plain. The fonrtli segment of the abdomen nearly twice as long as the three preceding. Legs and elater light colored. The latter slender. Manubrinm to mucrones and
dentes as u : 15.
Measurements.-Total length, I. I I mm. ; ratio of parts, ~nteruial joints 5:6: 6: 9; head 15 : 12; body segments 5 : 3 : 24 : 2& : 3b : 1.7 : 3 : 2 ; elater n : 1.7.
Habitat, -Upon juniper wood in the
yard during March and April, 1892.
The wood was brought from a swamp
in the fall and this species is probably arboreal in -habit. Orono. Mr. F. L.
Harvey.
Distingaushing characters. - The
small size, the form of the body, so




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

February 18q5.1 PS~TIYE. 199
broad in front and so very narrow
behind, the broad band between and
joining the eye patches, the absence of
other markings on the head, the ante-
rior position of the bands on thc nieto- noturn and first three abdominal seg-
ments, the anterior and posterior narrow bands of the mesonotum, the absence of
markings on the fifth and sixth abdoin-
inal segments, the very long fourth
abdominal segment and the compara-
tively short antennae.
Remarks. - The drawing of this
species (Fig. 2) was made from a live
specimen by Mr. J. H. Emerton and,
as in most of his sketches of these soft insects, it is loo broad, due to pressure needed to hold them still while drawing. Fig. 3.
Entoniobrya decemfasciata.
We have added Fig. .?, drawn by
Emerton, which shows what we call
Degee~ia decemfasciata Packard,
which according to Brooks (Linn.
Journ. Zoology, Vol. XVII, May,
1883, p. 275) = Podura fasciata Say
= Entomobrya wuIfi~asciata Tullb.
Mr. Macgillivray in his catalogue of
Thysanourans of North Arneiica (Can.
cnt. vol. XXIII, Dec. 1891, p. 271)
makes this species and Tullberg's
synonyms of Podura fasciato Say.
Mr. Brooks puts a question mark
after both Packard's and Say's species,
having we presume never examined the
forms. We have never seen Tullberg's
species, but Mr. Macgillivray kindly
sent 11s alcoholic specimens of what he
regarded Say's species and we would
very reluctantly regard them the same
as the species we figure as Packard's
D. 10-fasciafa. To try and settle the
identity of our form with Packard's, we
sent specimens to the author of the
species but could not get him to express a positive opinion whether they were
the same or not. When authors cannot
recognize their own species from speci-
mens, what can those who have only
their descriptions to go by be expected
to do?
We understand that Packard's types
were deposited in the collections at
Cambridge, and if still in condition and accessible we hope some time to look
them over. Say may have drawn up
his description from young specimens
of Packard's species, but we doubt it,
and would prefer to hold both as good
species until the forms are thoroughly
studied and also hold both distinct
from E, multifasciata Tuliberg until
foreign and American specimens arc
carefully compared.




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


Volume 7 table of contents