Sinella barri Christiansen, 1960

Wu, Jun, Yan, Qibao & Zhang, Feng, 2016, Supplementary descriptive notes of the Sinella and Coecobrya (Collembola: Entomobryidae) species from North America, Hawaii and Japan, Zootaxa 4085 (4) : -

Sinella barri Christiansen, 1960

Figs 13–16

Type locality. Inman Cave , Perry, Tennessee, USA.

Material examined. One slide per locality, USA: Kentucky: Livingston : Owens Cave , 8.vii.1965 (# 1540) ; USA: Illinois: Hadrin: Cave Spring Cave , 27.vii.1965 (# 1548) ; USA: Alabama: Jackson: Bucks pocket Cave , 2.vii.1965 (# 1555) ; USA: Kentucky: Grayson: Willis Cave , 6.viii.1966 (# 1675) ; USA: Arkansas: Randolph: Mansell Cave , 22.v.1969 (# 2305) ; USA: Arkansas: Randolph: Mansell Cave , 7.x.1968 (# 2307) ; USA: Missouri: Washington: Rattlesnake Pit Cave Entrance , rotten wood, 13.xi.1980 (# 5082). Deposited in CARC.

Additions to original description. Dorsal cephalic chaetotaxy with 4 median (M), 5 sutural (S) and 6 in Gr. II ( Fig. 13 ). Th.II with 4(3) (m1, m2, m 2i, m 2i 2) medio-medial, 5 (m4, m 4i, m4p, m4pi, m4pi2) medio-lateral, and 24–27 posterior mac; mac m 2i 2 often absent ( Fig. 14 ). Th.III with about 30–34 mac and 5 (m5, m 5i, a6, a 6i, a6e) mac in Gr. III ( Fig. 15 ). Abd.IV with 7 central and 11–12 lateral mac ( Fig. 16 ).

Ecology. Most from caves.

Distribution. Alabama, Arkansas, Illinois, Indiana, Kentucky, Virginia, Missouri.

Remarks. This species is characterized by 2+2 eyes, which are absent in some eastern populations ( Christiansen & Bellinger 1980). It is similar to 2+2 eyed species S. curviseta Brook, 1882 and S. aera Christiansen & Bellinger, 1980 , but differs from the arrangement of eyes and chaetotaxy of Abd.II–III (see Christiansen & Bellinger 1980).

Figures

FIGURES 13 – 16. Dorsal chaetotaxy in S. barri: 13, head; 14, Th. II; 15, Th. III; 16, Abd. IV.