Afroestricus, Scarbrough Table Of Contents, 2005

Scarbrough Table Of Contents, Aubrey G., 2005, Afroestricus, a new Afrotropical Ommatine (Diptera: Asilidae) genus with twenty species and two species groups, Zootaxa 1041 (1), pp. 1-76 : 11-14

publication ID

https://doi.org/ 10.11646/zootaxa.1041.1.1

persistent identifier

https://treatment.plazi.org/id/B5602620-3566-FFF6-FEC7-FA4E6202FD32

treatment provided by

Felipe

scientific name

Afroestricus
status

 

Key to the species of Afroestricus View in CoL View at ENA

The key to species herein is based largely on male specimens. The terminalia of a male, preferably dissected, is the most reliable means of identifying species. Not all females can be identified with confidence in the absence of associated males. However, reliable characters that apply to males and females are integrated in the key whenever possible.

1. Cell r 4 wide apically with vein R 4 strongly curved forward before wing margin ( Fig. 3a View FIGURES 3–4 ); cell r 1 round apically except in A. varipes , veins R 2+3 curved forward>50° apically ( Fig. 3a View FIGURES 3–4 ); tergum 9 of female long, 1/4 to 1/3 as long as cercus, entirely sclerotized dorsally ( Figs. 11 View FIGURES 5–14 , 21 View FIGURES 15–24 , 61 View FIGURES 55–64 , 77 View FIGURES 71–80 , 107 View FIGURES 101–110 , 127 View FIGURES 121–130 , 137 View FIGURES 131–140 , 147 View FIGURES 141–150 , 157 View FIGURES 151–160 , 183 View FIGURES 177–186 ), membranous in falaui ( Fig. 41 View FIGURES 35–44 ); males> 10 mm ( macroscelis View in CoL species group) ...................................... 2

­ Cell r 4 narrow apically with vein R 4 only slightly curved forward before wing margin ( Fig. 3b View FIGURES 3–4 ); cell r 1 narrow apically, veins R 2+3 gradually curved forward <50° apically ( Fig. 3b View FIGURES 3–4 ); tergum 9 of female mostly membranously dorsomedially, sometimes narrowly sclerotized and straplike ( Figs. 31 View FIGURES 25–34 , 51 View FIGURES 45–54 , 87 View FIGURES 81–90 , 97 View FIGURES 91–100 , 111 View FIGURES 111–120 , 173 View FIGURES 167–176 ); males <10 mm ( minutus species group) ........................................................................................................ 15

2. Dorsal postocular bristles short, thick, and only slightly proclinate, apex of longest bristle at or just beyond posterior margin of eye ( Fig. 4a View FIGURES 3–4 ) ............................................ 3

­ Dorsal postocular bristles much longer thinner and strongly proclinate, apex of longest bristle well before posterior margin of eye ( Fig. 4b View FIGURES 3–4 ); tergum 9 of female membranously or narrowly straplike dorsally.......................................................................... 10

3. Femora mostly to entirely black.................................................................................... 4

­ Femora yellow, narrow apex brown ............................................................................. 5

4. Femora entirely black; flagellum as long as scape; terminalia as in Figs. 15–24 View FIGURES 15–24 : (eastern and central Africa) ............................................................... chiastoneurus (Speiser)

­ Femora yellow to red dorsally; flagellum usually much longer than scape; terminalia as in Figs. 141–150 View FIGURES 141–150 ; (Cameroon­Nigeria east to Uganda) .................... varipes (Curran)

5. Marginal scutellar bristles, one to two lateral mesonotal bristles, and most ventral hind femoral bristles yellow; tergum 9 of female membranous dorsally ( Fig. 41 View FIGURES 35–44 ); terminalia as in Figs. 35–44 View FIGURES 35–44 ; ( Gambia, Senegal) .......................................................... fulaui View in CoL , sp. n.

­ Scutellum, mesonotum, and hind femur with only black bristles; tergum 9 entirely sclerotized dorsally ....................................................................................................... 6

6. Apical 1/3 of middle femur with only posteroventral setae; male with hind femur slen­ der, HFWLR>1.0:4.0.................................................................................................... 7

­ Apical 1/3 of middle femur with a stout posteroventral bristle; male with hind femur swollen, HFWLR<1.0:3.7 ............................................................................................ 8

7. Body stout, gonostylus narrow, terminalia otherwise as in Figs. 131–140 View FIGURES 131–140 ; (eastern Africa) ............................................................................................................. variabilis (Engel)

­ Body slender, gonostylus wide, triangular, terminalia otherwise as in Figs. 151–160 View FIGURES 151–160 ; (western and central Africa) ...................................................................... velatus View in CoL , sp. n.

8. Epandrium with a deep dorsal apical notch, apical margin angular; terminalia as in Figs. 177–186 View FIGURES 177–186 ; ( Angola, Chad, Gabon, Republic of Congo, Senegal, Uganda, Democratic Republic of Congo) ..................................................................... vittatus (Curran)

­ Epandrium without a deep apical notch, apical margin broadly rounded, terminalia otherwise differing from above ..................................................................................... 9

9. Dorsal margin of epandrium with a small, narrow notch medially; terminalia as in Figs. 121–130 View FIGURES 121–130 ; ( Ghana)............................................................................ sankofa View in CoL , sp. n.

­ Dorsal margin of epandrium without a small, narrow notch medially, small dorsoapical notch present; terminalia as in Figs. 187–192 View FIGURES 187–192 ; ( Niger, Uganda) ................. vorax View in CoL , sp. n.

10. Femora yellow, narrow apex brown............................................................................ 11 ­ Femora mostly or entirely black.................................................................................. 14

11. Fore coxa yellow; scape and pedicel yellow to brownish­yellow; male hind femur strongly swollen, HFWLR 1.0:3.1; terminalia as in Figs. 101–110 View FIGURES 101–110 ; ( Madagascar) ....... ....................................................................................................... persuasus (Oldroyd)

­ Fore coxa blackish; scape and pedicel brown to black; male hind femur slender to moderately swollen, HFWLR>1.0:3.2 ...................................................................... 12

12. Dorsal postocular bristles long, apex of longest bristle just before to above ocellar tubercle posteriorly; terminalia as in Figs. 5–14 View FIGURES 5–14 ; ( Ethiopia) ................. abyssinia View in CoL , sp. n.

­ Dorsal postocular bristles shorter, apex of longest bristle about 1/3 distance to ocellar tubercle.......................................................................................................................13

13. Pronotum with yellow bristles; antennae ventrally with short setae, shortest about as long as pedicel; apex of cell m 3 long, oblique; apical 1/3 of epandrium dorsally gradually oblique, well defined notch absent, terminalia otherwise as in Figs. 161–166 View FIGURES 161–166 ; ( Democratic Republic of Congo) ............................................................. verutus View in CoL , sp. n.

­ Pronotum with black bristles; antennae ventrally with setae much longer than pedicel; apex of cell m 3 short; apical 1/3 of epandrium dorsally with a well defined notch, terminalia otherwise as in Figs. 65–70 View FIGURES 65–70 ; ( Tanzania) ..................................... kimerus View in CoL , sp. n.

14. Femora mostly black, at least apical 1/4 yellow; hind femur with mostly yellow bristles; hind tarsus partly yellow with sparse yellow bristles; terminalia as in Figs. 55–64 View FIGURES 55–64 ; ( Kenya, Rwanda, Uganda) .................................................................... insectaris View in CoL , sp. n.

­ Femora and tarsi entirely black; hind femur and hind tarsus with only black bristles; terminalia as in Figs. 71–80 View FIGURES 71–80 ; ( Eritrea) ............................................. macroscelis (Bezzi) View in CoL

15. Hind leg and hind tarsus entirely brown; male hind femur swollen HFWLR 1.0: 3.3– 1.0:3.8; male terminalia black; terminalia as in Figs. 167–176 View FIGURES 167–176 ; ( Tanzania) victus View in CoL , sp. n.

­ Hind leg and basal tarsomere of hind tarsus mostly yellow, narrow apices brown; male hind femur slender, HFWLR>1.0:4.5; male terminalia usually brown to brownish­yellow with yellowish apical margins.............................................................................. 16

16. Long, stout dorsocentral bristles extend anteriorly to posterior margin of postpronotum; apical abdominal segments of female with stout bristles; spermatheca smooth, without minute rings; terminalia as in Figs. 111–120 View FIGURES 111–120 ; ( Ghana, Nigeria) sadaukii View in CoL , sp. n.

­ Long stout dorsocentral bristles extend to or just anterior to transverse suture; apical abdominal segments of female usually without stout bristles; spermatheca annulated or smooth..................................................................................................................... 17

17. Antenna and tarsi mostly yellow; apical abdominal segments of female with stout bristles; spermatheca annulated, and short, straight with wide base tapered to narrow apex ( Fig. 89 View FIGURES 81–90 ); male terminalia mostly to entirely yellow ( Figs. 81–90 View FIGURES 81–90 ); ( Botswana, Malawi, Namibia, South Africa) ...................................................... minutus (Bromley)

­ Antenna and tarsi mostly brown; spermatheca reflected ( Figs. 33 View FIGURES 25–34 , 53 View FIGURES 45–54 , 99 View FIGURES 91–100 ); male terminalia mostly brown...................................................................................................... 18

18. Dorsal postocular bristles long, apex above ocellar tubercle; four stout dorsocentral bristle present, anterior most bristle at or just behind transverse suture; basal 1/3 of hind femur of male with yellow bristles ventrally; apical abdominal segments of female with stout bristles; spermatheca of female annulate ( Fig. 99 View FIGURES 91–100 ); terminalia as in Figs. 91–100 View FIGURES 91–100 ; ( Tanzania) ........................................................................... morani View in CoL , sp. n.

­ Dorsal postocular bristles shorter, at 1/3 to 1/2 distance to ocellar tubercle; three to four stout dorsocentral bristles present, anterior most bristle well behind transverse suture; apical abdominal segments of female with thin bristles; spermatheca variable ..................................................................................................................................... 19

19. Epandrium with a prominent hook apically ( Fig. 45 View FIGURES 45–54 ); spermatheca smooth ( Fig. 53 View FIGURES 45–54 ); terminalia otherwise as in Figs. 45–54 View FIGURES 45–54 ; ( Malawi) ................................... hamulus View in CoL , sp. n.

­ Epandrium without a prominent hook apically ( Fig. 25 View FIGURES 25–34 ); spermatheca annulate ( Fig. 33 View FIGURES 25–34 ); terminalia otherwise as in Figs. 25–34 View FIGURES 25–34 ; ( Malawi, Mozambique) .. eminentis View in CoL , sp. n.

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Diptera

Family

Asilidae

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