Campsicnemus

Evenhuis, Neal L., 2009, Review of Campsicnemus (Diptera: Dolichopodidae) of the Marquesas, French Polynesia, with description of four new species groups, Zootaxa 2004, pp. 25-48 : 27-28

Key to Species Groups of Campsicnemus in French Polynesia

(based on males)

1. Fore coxa with a cluster of three to 4 black setae subapically on anterior surface (directed forward) that appear to be fused together to form a thorn-like projection ( Fig. 2 ); mid basitarsus shortened and with an apical spur of varying shapes or strong apical seta ( Figs. 3–6 ) ... (Marquesas). ...................................................................... gladiator group

-. Fore coxa without a modified cluster of setae; mid basitarsus not as above................................................................ 3

2. Mid femur with conspicuous ventral swellings and concavities with associated patches of strong setae (e.g., Figs. 14–16 ) ................................................................................................................................................... englundi group

-. Mid femur normal in shape and without setae in patches as above.............................................................................. 2

3. Fore tibia with conspicuous hook-like or pad-like sclerotized protuberance apically ( Figs. 23–27 )...(Marquesas) ...... ..........................................................................................................................................................................aa group

-. Fore tibia without such a protuberance apically (not to be confused with an apical tibial comb, which is not a sclero- tized structure of the tibia) ............................................................................................................................................ 4

4. Mid basitarsus with conspicuously long, thick setae ( Figs. 17–20 )... (Marquesas) ................................. hihiroa group

-. Mid basitarsus without such long setae ... (Society Islands) ........................................................................................ 5

5. Wing with apical spot and/or band of infuscation on posterodistal portion; wing often falcate apically; mid femur without strong black setae of varying shapes on apical third of ventral surface l ...................................... obatus group

-. Wing without an apical spot or band of infuscation distally; mid femur with short, strong black setae of varying shapes on apical third of ventral surface. ................................................................................................... zigzag group

Figures

FIGURE 2. Campsicnemus gladiator, n. sp., male fore coxa, lateral view, showing cluster of setae.

FIGURES 3 – 6. Campsicnemus gladiator group, male mid basitarsi. 3. C. gladiator, n. sp. 4. C. limnobates Evenhuis. 5. C. scurra Parent. 6. C. uncleremus Evenhuis.

FIGURES 14 – 16. Campsicnemus englundi group, male midlegs. 14. C. cheesmanae, n. sp., femur, tibia, and basitarsus. 15. Campsicnemus englundi, n. sp., femur, tibia, and basitarsus. 16. Campsicnemus plautus, n. sp., femur, tibia, and all tarsi, showing flared basitarsus and swollen second tarsomere.

FIGURES 23 – 27. Campsicnemus apices of fore tibiae showing hook-like process and setal arrangement. 23. C. aa, n. sp. 24. C. ee, n. sp. 25. C. ii, n. sp. 26. C. oo, n. sp. 27. C. uu, n. sp.

FIGURES 17 – 20. Campsicnemus hihiroa group legs. 17. C. dytei, fore tibia. 18 – 20. Mid basitarsi. 18. C. hihiroa, n. sp., 19. C. dytei, n. sp. 20. C. taratara, n. sp.