The millipede family Conotylidae in northwestern North America, with a complete bibliography of the family (Diplopoda, Chordeumatida, Heterochordeumatidea, Conotyloidea)
Author
Shear, William A.
Author
Richart, Casey H.
Author
Wong, Victoria L.
text
Zootaxa
2020
2020-03-19
4753
1
1
78
journal article
21316
10.11646/zootaxa.4753.1.1
f7974bcf-11e7-4d1b-b09d-530dc2dbd54f
1175-5326
3983782
AA9F66B3-EF8C-4F6B-8F35-0BCBEE5122ED
Bollmanella
Chamberlin, 1941
Bollmanella
Chamberlin 1941: 12
;
Shear, 1974: 135
.
Type
species,
Bollmanella oregona
Chamberlin, 1941
.
Diagnosis
: Small to medium-sized conotylids (
4.5–11 mm
long). Anterior gonopods unbranched, simple. Coxites of posterior gonopods often with pseudoflagellar branch carried in sheath at least partially fused with main body of coxite. Pregonopodal legs three and four encrassate, with distomesal femoral knobs, or legs three to seven encrassate, five, six and seven with prefemoral knobs (
Bollmanella washingtonensis
,
n. sp.
). Distinct from the closely related
Bifurcatella
,
n. gen.
in the unbranched anterior gonopods,
Bifurcatella
having the gonopods distinctly twobranched, the median branch usually the shorter, and from
Complicatella
,
n. gen.
in having the pseudoflagellum single (multiple in
Complicatella
);
Complicatella
also has the sheath of the pseudoflagellum entirely separate from the main body of the coxite; it appears as a basal branch of the main pseudoflagellum.
Notes
: The eight species of
Bollmanella
and their known distributions are as follows:
Bollmanella oregona
Chamberlin, 1941
, from Josephine, Douglas and Jackson Counties in
Oregon
(for a full list of localities, see
Shear, 1974
);
B. reducta
Shear, 1974
, from near Ashland, Jackson Co.,
Oregon
;
B. laminata
Shear, 1974
, from near Timber,
Washington
Co.,
Oregon
;
B
.
bella
Shear, 1974
, from near Allegany on the Douglas/Coos Counties border;
B. camassia
Shear, 1974
, from Camas Valley, Douglas Co.,
Oregon
;
B. washingtonensis
,
n. sp
.
, from Grays Harbor, Thurston, King, Mason, Cowlitz, Jefferson and Pacific Counties,
Washington
,
B
.
bombus
,
n. sp.
from
Idaho
Co.,
Idaho
, and
B. leonardi
,
n. sp.
from Cowlitz and Thurston Counties,
Washington
. See descriptions below for detailed localities of the new species.
Previously described species of the genus transferred elsewhere:
B. unca
Shear, 1974
, from two localities in Douglas Co.,
Oregon
and
B. bifurcata
Shear, 1974
from Wallowa Co.,
Oregon
, are moved to
Bifurcatella
,
n. gen.
and
B. complicata
Shear, 1974
from Mason Co.,
Washington
is the
type
of the new genus
Complicatella
.
This genus seems to be close to
Taiyutyla
in many respects, and some species in both genera are difficult to place. The
type
species,
B. oregona
,
had previously been a somewhat aberrant member of the genus in that the main branch of the posterior gonopod coxite is quite narrow, and the sheathing branch is free for much of its length. The three new species described below more closely conform to this plan, despite significant geographic separation from
B. oregona
. The species removed from the genus seem quite dissimilar to
B. oregona
and the three new ones; the name
Bollmanella
has to go with
B. oregona
,
its
type
.
Descriptions of new species of
Bollmanella