Sagola bifida Broun 1915
Creators: name: Park, J. - S.
name: Carlton, C. E.
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Staphylinidae
Sagola
Sagola bifida

description: 3. bifida species-group
(11 species)
Diagnosis. The members of the bifida speciesgroup can be distinguished from other Sagola species-groups by the following combination of characters: body length 2.4–3.2 mm; antennomere 1 approximately 2 times longer than wide with dull surface; ventral surface of male head depressed transversely, at least one-half covered with tubular structures on each side (Fig. 12m), with dense setae along edge; hind wings reduced to small pads; male fore femur with semicircular depression; male mid-femur with shallow depression (Fig. 12n: arrow); male mid-tibia bent (Fig. 12o: arrow); abdominal tergites IV–VI with discal carinae; present on North Island, not known from South Island (Figs. 13–14).
KEY TO SPECIES OF THE BIFIDA SPECIES- GROUP
The key is based on genitalia because most specimens are indistinguishable based on external morphology.
1. Median lobe of genitalia deeply divided, major lobe broad and covering minor (Fig. 12f)............. S. mayae new species
1′. Median lobe of genitalia not divided...2
2(1′). Median lobe of genitalia shorter than both parameres; right paramere twisted............................................................3
2′. Median lobe of genitalia longer than at least one of parameres; right paramere not twisted .............................................4
3(2). Apex of right paramere broad (Fig. 12c) .............................. S. crawi new species
3′. Apex of right paramere simple (Fig. 12a) ....................................... S. bifida Broun
4(2′). Right paramere with long minor branch ...............................................................5
4′. Right paramere without branch............7
5(4). Apical lobe of genitalia bent ventrally (Fig. 12d).............. S. earlyi new species
5′. Apical lobe of genitalia straight...........6
6(5′). Median lobe of genitalia cylindrical, longer than right paramere (Fig. 12b) .... ................................. S. latistriata Broun
6′. Median lobe of genitalia broad vertically, shorter than right paramere (Fig. 12e) .................. S. embersoni new species
7(4′). Left paramere with U-shaped depression apically (Fig. 12g)................................... .................... S. ranatungae new species
7′. Left paramere without depression.........8
8(7′). Median lobe of genitalia shorter than left paramere, with simple apical lobe (Fig. 12i)...... S. tekoauensis new species
8′. Median lobe of genitalia longer than parameres with modified apical lobe....9
9(8′). Apical lobe of genitalia broad with acute lobe behind apex (Fig. 12h) ................... ........................ S. baylessae new species
9′. Apical lobe of genitalia round and blunt .......................................................... 10
10(9′). Apical lobe of genitalia with semicircular depression; phallobase of genitalia transverse (Fig. 12k) ....................................... ........................ S. fairburni new species
10′. Apical lobe of genitalia with branch; phallobase of genitalia as long as wide (Fig. 12j)............... S. ferroi new species
description: Published as part of Park, J. - S. & Carlton, C. E., 2014, A revision of the New Zealand species of the genus Sagola Sharp (Coleoptera: Staphylinidae: Pselaphinae: Faronitae), pp. 1-156 in The Coleopterists Bulletin (mo 13) (mo 13) 68 on pages 24-25, DOI: 10.1649/072.068.0mo4.1, http://zenodo.org/record/4907735