Phlugiolopsis

Bian, Xun, Shi, Fu-Ming & Chang, Yan-Lin, 2012, Review of the genus Phlugiolopsis Zeuner, 1940 (Orthoptera: Tettigoniidae: Meconematinae) from China, Zootaxa 3281, pp. 1-21 : 3

Key to the known species of Phlugiolopsis from China

1. Basal half of male cerci stout, internal margin obviously lobate expansion, apical half narrowing, curved inwards......... 2

- Basal area of male cerci slightly expanded, basal half or middle area with internal lobe or branch...................... 7

2. Posterior margin of male tenth abdominal tergite with 1 deep notch in middle; lateral margin of female eighth abdominal tergite with 1 small tubercular process at each side........................................ P. tuberculata Xia & Liu

- Posterior margin of male tenth abdominal tergite straight, or slightly concave in middle; lateral margin of female eighth abdominal tergite without tubercular process................................................................ 3

3. Basal area of male cerci with 1 ventral process, the apical half curved dorsad; baso-lateral margin of female subgenital plate expanded, which curved dorsad.......................................................................... 4

- Basal area of male cerci without process on ventral margin; baso-lateral margin of female subgenital plate expanded, which slightly bent ventrad................................................................................... 5

4. Middle area of male cerci with a small tooth on interno-dorsal margin; female subgenital plate butterfly-shaped, baso-lateral margin expanded, tongue-shaped, curved dorsad, lateral margin obviously concave in middle...... P. yunnanensis Shi & Ou

- Middle area of male cerci without tooth on interno-dorsal margin; baso-lateral area of female subgenital plate expanded, which curved dorsad.......................................................................... P. adentis sp. nov.

5. Subbasal area of dorsal lobe of male cerci with a small buninoid process, dorsal margin of middle area with a short triangular lobe; lateral margin of female eighth abdominal tergite with 1 digitate process...................... P. digitusis sp. nov.

- Dorsal lobe and middle area of male cerci without process; lateral margin of female eighth abdominal tergite without process at each side............................................................................................ 6

6. Basal half of male cerci only with dorsal lobe; posterior margin of female subgenital plate with 1 triangular eminentia in middle............................................................................... P. brevis Xia & Liu

- Basal half of male cerci with slightly broad interno-dorasal lobe and slightly narrow interno-ventral lobe; posterior margin of female subgenital plate broadly rounded...................................................... P. trullis sp. nov.

7. Basal area of male cerci with 1 long internal branch or middle area with 1 short internal lobe.......................... 8

- Male cerci at least with 3 branches........................................................................ 9

8. Middle area of male cerci with 1 rectangle internal lobe; apical half thin and long, apex acute......... P. m i n u t a (Tinkham)

- Basal area of male cerci with 1 thin and slightly long internal branch, the middle area slightly expanded, compressed, apex obtuse............................................................................. P. grahami (Tinkham)

9. Basal area of male cerci with 1 digitiform, lamellar process, apex curved interno-dorsad; ventral margin of middle area with 1 spatulate process; apical half slightly conical, apex obtusely rounded, slightly incurved............. P. tribranchis sp. nov.

- Basal area of male cerci with 1 slightly compressed, comparatively long and triangular process on interno-dorsal margin; one third basal area with a comparatively short and triangular process on ventral margin, apex obtuse; middle area with 1 spineshaped process on dorsal margin, apex curved interno-dorsad; subapical area slightly expanded, apex subacute.................................................................................................. P. pectinis sp. nov.