Key to species of Elaphropeza from D.R. Congo

1 Proepisternum with long upturned bristle just above fore coxa. Abdominal tergite 3 with numerous squamiform setae ( E. biuncinata -group)................................................................................... 2

– Proepisternum bare just above fore coxa. Abdominal tergite 3 with unmodified setae, lacking squamiform setae (E. ephippi-

ata -group)......................................................................................... 10 2 Thorax largely yellow to reddish yellow.................................................................. 3

– Thorax entirely black to blackish brown.................................................................. 5

3 Hind tibia lacking anterodorsal bristles. Postpedicel about 1.5 times as long as wide. Male: right epandrial lamella attenuated apically (Fig. 26)....................................................................... E. baeloi sp. nov.

– Hind tibia with 1 anterodorsal bristle. Postpedicel 2.5–3.0 times as long as wide. Male: right epandrial lamella rounded api- cally (Fig. 48)....................................................................................... 4

4 Scutum uniformly reddish yellow; metapleuron yellow. Male: left cercus unbranched, with numerous thin setae (Fig. 49).......................................................................................... E. zamba sp. nov.

– Scutum with indistinct brownish spot on anterior corner; metapleuron yellowish brown. Male: left cercus branched apically, with strong subapical seta (Fig. 43)........................................................... E. mai sp. nov.

5 Hind femur entirely yellow............................................................. E. angulata sp. nov.

– Hind femur blackish brown apically..................................................................... 6

6 Hind femur blackish brown on apical two-thirds............................................................. 7

–. Hind femur blackish brown on apical half................................................................. 8

7 Wing with vein R2+3 evenly bowed, uniformly sclerotised...................................... E. moyindo sp. nov.

– Wing with vein R2+3 angulate, pale on middle part........................................... E. interrupta sp. nov.

8 Wing somewhat deeper infuscate near base of veins R2+3 and R4+5, with vein R2+3 angulate............ E. infuscata sp. nov.

– Wing uniformly finely infuscate, with vein R2+3 evenly bowed................................................. 9

9 Abdominal tergite 7 broadly deeply concave dorsally, bearing minute posteromarginal setae.......... E. excavata sp. nov.

– Abdominal tergite 7 subrectangular, bearing moderately long posteromarginal setae. Male: left surstylus furcate................................................................................................ E. furcata sp. nov.

10 Hind tibia lacking anterodorsal bristles.................................................................. 11

– Hind tibia with anterodorsal bristle(s), yellow. At least abdominal tergite 4 with squamiform setae................... 12

11 Hind tibia entirely black. Abdominal tergites lacking squamiform setae............................. E. nuda sp. nov.

– Hind tibia yellow. Abdominal tergites 4 and 5 with squamiform setae........................... E. ghesquierei Collart

12 Hind tibia with 1 anterodorsal bristle. Scutum on each side with brownish subtriangular spot extending from level of anterior notopleural bristle to base of scutellum and narrowly connecting along base of scutellum; scutellum, metanotum and metapleu- ron yellowish brown................................................................... E. monoseta sp. nov. [Note: in this species the number of anterodorsal bristles on the hind tibia varies (1–2 but usually 2) and it is included in both sections of the couplet in this key.]

– Hind tibia with 2–3 anterodorsal bristles. Different combination of characters................................... 13

13 Hind tibia with 3 anterodorsal and 1 dorsal bristles......................................................... 14

– Hind tibia with only 2–3 anterodorsal bristles............................................................. 15

14 Metanotum brownish, metapleuron yellow................................................ E. laudisoitae sp. nov.

– Metanotum yellow, metapleuron brownish on upper part......................................... E. kona sp. nov.

15 Thorax entirely yellow. Hind tibia with 2 or 3 anterodorsal bristles............................................. 16

– Thorax with brown markings. Hind tibia with 2 anterodorsal bristles............................................ 17

16 Hind tibia with 3 anterodorsal bristles...................................................... E. motane sp. nov.

– Hind tibia with 2 anterodorsal bristles........................................................ E. plagiata Bezzi

17 Pleura largely yellow, brown spotted in E. monoseta sp. nov. ................................................. 18

– Pleura largely dark brown............................................................................. 20

18 Scutum and scutellum entirely yellow. Larger, about 3.0 mm.................................... E. juakalyi sp. nov.

– Scutum on each side with brownish subtriangular spot extending from level of anterior notopleural bristle to base of scutellum.................................................................................................. 19

19 Pleura with brown spots. Metapleuron brown. Tergite 5 with squamiform setae. Smaller, about 2.0 mm..................................................................................................... E. monoseta sp. nov.

– Pleura yellow, with narrow brown border at insertion coxae. Metapleuron yellow. Tergite 5 without squamiform setae. Larger, about 4 mm ........................................................................... E. incerta sp. nov.

20 Hind femur brownish on apical third. Thoracic pleura almost entirely dark brown, only katepisternum narrowly yellow anteri- orly................................................................................. E. yaekela sp. nov.

– Hind femur entirely yellow. Thoracic pleura viewed laterally with two broad, dark brown vertical stripes................................................................................................... E. congoensis sp. nov.