Bollmanella Chamberlin, 1941

Shear, William A., Richart, Casey H. & Wong, Victoria L., 2020, The millipede family Conotylidae in northwestern North America, with a complete bibliography of the family (Diplopoda, Chordeumatida, Heterochordeumatidea, Conotyloidea), Zootaxa 4753 (1), pp. 1-78 : 30

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