Isoneuromyia Brunetti

Evenhuis, Neal L., 2006, New species of Isoneuromyia Brunetti (Diptera: Keroplatidae) from the Oriental Region, Zootaxa 1140, pp. 1-29 : 9-10

Key to oriental species of Isoneuromyia Brunetti

1. Tibial spurs yellow to orange ........................................................................................ 2

­ Tibial spurs brownish black to black............................................................................. 5

2. Wing with infuscation apically; basal flagellomeres orange, apical ones black ( Fig. 5 )... (Borneo) .............................................................................. polybioides (Edwards)

­ Wing completely hyaline; flagellomeres unicolorous .................................................. 3

3. Frons, face, and fore coxae yellow ... (Sulawesi) ................ pallidopsis Evenhuis, n. sp.

­ Frons and face brown ... (Borneo)................................................................................. 4

4. Scutellum predominantly yellow ............................................. matilei Evenhuis, n. sp.

­ Scutellum dark brown .............................................................. tannia Evenhuis , n. sp.

5. Wing completely hyaline or with yellowish tinting along anterior margin................... 6

­ Wing smoky apically or with distinct infuscation apically or subapically.................. 10

6. Mesonotum orange, without contrasting dark pattern, or with weak brown stripes, median stripe faded or absent........................................................................................ 7

­ Mesonotum all black or yellowish with contrasting black to brown pattern; fore tibia with distinctive shiny orange pecten comb apically...................................................... 8

7. Mesonotum with brown hairs posteriorly ( Fig. 18 ); gonostylus (cf. Fig. 34 ) bidentate ... (Borneo) ...................................................................................... xanthina (Edwards)

­ Mesonotum with golden yellow tomentum, black hairs restricted to patches above wing root ( Fig. 12 ); gonostylus (Fig. 36) multidentate ... ( Laos) .................................. .................................................................................................... glabra Evenhuis, n. sp.

8. Forecoxagoldenyellowtomentose,withoutdarkhairsexcepttypicalapicalones...(Borneo) ...................................................................................................... flava Evenhuis, n. sp.

­ Fore coxa with black hairs throughout .......................................................................... 9

9. Scutellumyellow;palpibrown;forefemurwithdensehairsbasally,bareapically...(Borneo) ........................................................................................................ jata Evenhuis, n. sp.

­ Scutellum brown; palpi yellow; fore femur with black hairs evenly distributed ... ( Laos) ............................................................................................... variabilis Evenhuis, n. sp.

10. Occiput predominantly orange to yellow with darker occipital triangle..................... 11

­ Occiput predominantly brownish black to black......................................................... 15

11. Mesonotum with distinct dark stripes ......................................................................... 13

­ Mesonotum with stripes coalesced into one dark pattern ... ( Laos)............................ 12

12 Basalantennalflagellomeresbrown,apicalsegmentsyellow;gonostylus( Fig.34 )bidentate ............................................................................................... splendida Evenhuis, n. sp.

­ Antennal flagellomeres all yellowish orange; gonostylus (Fig. 35) multidentate .......... ............................................................................................... brunettii Evenhuis , n. sp.

13. Antennal flagellomeres unicolorous....... .................................................................. 14

­ Basal antennal flagellomeres black, apical ones yellow to orange ... ( Laos) ................. .............................................................................................. nigribasis Evenhuis, n. sp.

14. Wing with apical infuscation extending to wing margin ... ( Taiwan) .............................

............................................................................................ formosana (Okada) , n. stat. ­ Wing with spot of infuscation subapically, not extending to wing margin ... ( Laos) ..... ............................................................................................ subapicalis Evenhuis, n. sp. 15. Abdomen predominantly yellow orange to reddish orange ........................................ 16

­ Abdomen predominantly black ................................................................................... 18

16. Antennal flagellomeres black .......................................................... rufescens (Brunetti)

­ Antennal flagellomeres reddish yellow....................................................................... 17

17. Palpi brown; fore coxa brown basally, yellow apically ... ( India) ...... grandis (Brunetti)

­ Palpi yellow; fore coxa all yellow to orange ... ( Vietnam) ........... yorki Evenhuis, n. sp.

18. Antennal flagellomeres reddish yellow ... ( Bangladesh, India, Sri Lanka)..................... ......................................................................................................... annandalei Brunetti

­ Antennal flagellomeres brown to black ........ ........................................................... 19

19. Abdominal segment 5 with yellow basally ... (Java) ................... elegantissima (Tollet)

­ Abdominal segment 5 all black.......... ....................................................................... 20

20. Face yellow; ocellar triangle darker than immediate surrounding area; fore femur brown dorsally, yellow ventrally ... (Java) ..................................... pulcherrima (Tollet)

­ Face brown; ocellar triangle and immediate surrounding area black; fore femur entirely reddish yellow with dense black hairs ... ( Laos) ..... nigerrima Evenhuis, n. sp.

Figures

FIGURE 34. Isoneuromyia splendida, n. sp. A. Male genitalia, dorsal view. B. Detail of apex of gonostylus, showing minute teeth in between larger teeth.

FIGURES 1 – 6. 1 – 2. Isoneuromyia heads, lateral view, showing general shapes, antennal flagellomeres and vestiture removed. 1. I. splendida, n. sp. 2. I. yorki, n. sp. 3 – 6. Isoneuromyia antennae, lateral view. 3. I. nigerrima, n. sp. 4. I. splendida, n. sp. 5. I. polybioides (Edwards). 6. I. glabra, n. sp.

FIGURES 11 – 19. Isoneuromyia thoraces, dorsal view. 11. I. brunettii, n. sp. 12. I. flava, n. sp. 13. I. glabra, n. sp. 14. I. matilei, n. sp. 15. I. nigribasis, n. sp. 16. I. pallidopsis, n. sp. 17. I. splendida, n. sp. 18. I. xanthina (Edwards). 19. I. yorki, n. sp.