Key to species of Accacidia (males)

Note: The following three species currently placed in Accacidia are doubtfully included in this genus and are excluded from the key: A. dactyla (Naudé, 1926); A. garhiensis Ahmed, 1970; A. limitata Dlabola, 1979 . These are here considered species incertae sedis within Erythroneurini .

1 Aedeagal shaft in lateral view with angulate apical or preapical projection on dorsal margin extended antirad (Figs 9k, l)... 2

- Aedeagal shaft in lateral view without angulate preapical or apical projection on dorsal margin....................... 12

2 Dorsal projection of aedeagal shaft sharp, spinelike, longer than broad in lateral view............................... 3

- Dorsal projection of aedeagal shaft blunt, shorter than broad in lateral view (Figs 9k, l).............................. 4

3 Unpaired basal appendage of aedeagus much shorter than shaft, paired apical processes of shaft extended to midlength of shaft, each with 3-4 lateral teeth; dorsal pygofer appendage unbranched....................... A. nigropunctata Dworakowska

- Unpaired basal appendage of aedeagus slightly longer than shaft, paired apical processes of shaft very short and bifid basally; dorsal pygofer appendage bifid....................................................... A. rubrata Dworakowska

4 Pygofer lobe with ventral tooth or process distally (Fig. 9d).................................................... 5

- Pygofer lobe without ventral tooth or process............................................................... 6

5 Pygofer lobe with short ventroapical tooth, not surpassing dorsal angle of pygofer lobe (Fig. 9d); process of anal tube unbranched with apex hooked (Fig. 9e); aedeagus with ventral process broadly and immovably attached to base (Fig. 9k)............................................................................. A. obunca Cao & Dmitriev sp. nov.

- Pygofer lobe with long ventroapical process, surpassing hind margin of pygofer lobe; process of anal tube forked and straight apically; aedeagus with ventral process narrowly and flexibly attached to base................. A. joannae Dworakowska

6 Aedeagus with distal processes distinctly longer than half shaft length........................................... 7

- Aedeagus with distal processes shorter than or equal to half shaft length, or absent.................................. 8

7 Aedeagus with dorsal projection situated at apex, weakly falcate; ventral process distinctly shorter than shaft; distal paired processes strongly diverging from shaft in posterior view................................ A. irregularis Dworakowska

- Aedeagus with dorsal projection situated well basad of apex, obtuse; ventral process distinctly longer than shaft; distal paired processes close to shaft in posterior view................................................. A. cerutti Dworakowska

8 Aedeagus with distal processes absent, apex expanded in lateral view and denticulate........... A. metcalfi Dworakowska

- Aedeagus with distal processes present, apex not expanded in lateral view and without denticule...................... 9

9 Aedeagus with dorsal projection situated at apex, tooth-like, four distal processes arising separately from ventral part of broad lateral flange and extended basad to near midlength of shaft............................... A. dlabolai Dworakowska

- Aedeagus with dorsal projection situated well basad of apex, angulate, paired distal processes much shorter than half shaft length, bifurcated or with teeth apically................................................................... 10

10 Unpaired basal appendage of aedeagus distinctly longer than shaft, distal processes divergent from shaft in posterior view................................................................................. A. simillima, Dworakowska

- Unpaired basal appendage of aedeagus as long as shaft, distal processes parallel to shaft in posterior view.............. 11

11 Anal tube appendage with upper branch much longer than lower branch................... A. badeniensis, Dworakowska

- Anal tube appendage with two branches subequal in length............................. A. linnavuorii, Dworakowska

12 Aedeagus with distal processes extended distad............................................................ 13

- Aedeagus with distal processes extended basad............................................................. 14

13 Distal processes of aedeagus distinctly curved laterad in posterior view, basal appendage of aedeagus with apex spear-shaped.............................................................. A. divergiprocessicae Sohi, Mann & Shenhmar

- Distal processes of aedeagus weakly curved in posterior view, basal appendage of aedeagus evenly tapered from base to apex................................................................................ A. lyrifora Dworakowska

14 Aedeagal shaft apex with unpaired median spine extended ventrad and longer than paired processes......... A. jacobii Sohi

- Aedeagal shaft apex without unpaired spine-like process..................................................... 15

15 Aedeagus with distal processes much shorter than half length of shaft........................................... 16

- Aedeagus with distal processes nearly as long as or longer than half length of shaft................................ 17

16 Anal tube appendage with upper branch thicker and longer than lower branch; aedeagus with distal processes branched................................................................................... A. kluczykae Dworakowska

- Anal tube appendage with upper branch thinner and shorter than lower branch; aedeagus with distal processes unbranched............................................................................. A. chamburasca Einyu & Ahmed

17 Aedeagus with paired distal processes unbranched and without teeth.......................... A. stehliki Dworakowska

- Aedeagus with paired distal processes branched or toothed................................................... 18

18 Distal processes of aedeagus with one branch very short or tooth-like........................................... 19

- Distal processes of aedeagus with two branches moderately long............................................... 22

19 Anal tube appendage unbranched........................................................................ 20

- Anal tube appendage bifurcated......................................................................... 21

20 Aedeagus with distal processes toothed beyond midlength................................. A. improvisa (Linnavuori)

- Aedeagus with distal processes toothed basad of midlength.................................. A. dubia Dworakowska

21 Aedeagus with distal processes serrate on upper margin.................................... A. maxima Dworakowska

- Aedeagus with distal processes smooth................................................. A. kenyii Einyu & Ahmed

22 Distal processes of aedeagus with two branches subequal in length............................................. 23

- Distal processes of aedeagus with one branch distinctly shorter than another...................................... 24

23 Aedeagus with distal processes divergent from shaft in posterior view............................. A. coronata Dlabola

- Aedeagus with distal processes close to shaft in posterior view................................... A. spinata Dlabola

24 Basal appendage of aedeagus shorter than or as long as shaft.................................................. 25

- Basal appendage of aedeagus longer than shaft............................................................. 26

25 Anal tube appendage with lower branch much broader but shorter than upper branch............ A. regularis Dworakowska

- Anal tube appendage with two branches subequal in thickness................................ A. aurea Dworakowska

26 Aedeagus with distal processes divergent from shaft in posterior view.......................... A. acaciae (Linnavuori)

- Aedeagus with distal processes close to shaft in posterior view..................................... A. irina Dlabola