Bama, McAlpine, 2001

McAlpine, David K., 2015, Signal Flies of the Genus Bama (Diptera: Platystomatidae) in Papua New Guinea, Records of the Australian Museum 67 (2), pp. 25-53 : 27-28

publication ID

https://doi.org/ 10.3853/j.2201-4349.67.2015.1603

persistent identifier

https://treatment.plazi.org/id/03AB6A52-FFE1-562B-FD25-D087F94000E4

treatment provided by

Carolina

scientific name

Bama
status

 

Key to species of Bama View in CoL

1 Scutellum laterally setulose, dorsally glossy without pubescence; intermediate scutellar bristle much shorter than basal scutellar bristle; wing markings as in Fig. 53 View Figures 52, 53 ......................................................... shinonagai McAlpine View in CoL

—— Scutellum without setulae, its dorsal surface with covering of minute erect pubescence; intermediate scutellar bristle c. as long as basal scutellar bristle; wing markings otherwise .................................................................. 2

2 Marginal and submarginal cells of wing entirely dark brown to black, or (in male) first posterior cell with spotted pattern ( Fig. 23 View Figures 23–26 ) ..................................................................................................................................... 3

—— Marginal and submarginal cells with hyaline to pale yellowish zones; first posterior cell without such pattern .......................................................................... 5

3 Vein 5 on distal part of discal cell surrounded by pale brown zone; discal crossvein almost straight; palpus dark grey-brown; ♂ only: first posterior cell with complex spotted pattern ( Fig. 23 View Figures 23–26 ) ............................ gressitti n.sp.

—— Vein 5 on discal cell not clouded with brown; discal crossvein curved; palpus variable in colour; ♂ only: first posterior cell without spotted pattern (so far as known) ................................................................................. 4

4 Vein 2 with abrupt flexure just before level of anterior crossvein ( Fig. 8 View Figures 7–10 ); dark mark enclosing discal crossvein broadly confluent with dark costal zone; prescutellar acrostichal bristle present; arista uniformly short-haired, with simple apex ( Fig. 10 View Figures 7–10 ) ....................................... flexifer n.sp.

—— Vein 2 with moderate curvature only ( Fig. 17 View Figures 17–20 ); discal crossvein not enclosed in brown mark; prescutellar acrostichal bristle absent; arista bare on most of length, with lanceolate subapical palette (at least in female; Fig. 19 View Figures 17–20 ) ......................................................................... signifer n.sp.

5 Anal crossvein subangularly bent near mid-length; wing markings approximately as in Fig. 1 View Figures 1, 2 , but sometimes stigmatal brown band fading posteriorly; fore femur entirely brown; hind femur yellow ............................................................................................ bipunctatum (Hendel)

—— Anal crossvein most strongly bent or curved on anterior part; wing markings diverse; coloration of femora diverse ............................................................... 6

6 Capitellum of halter dark brown to black; apical part of first posterior cell largely hyaline, but with very narrow apical marginal brown line .................................................................................................................. 7

—— Capitellum of halter white or yellow; apical part of first posterior cell variable, but often partly brown .......................................................................... 8

7 Distal parts of veins 3 and 4 almost straight, markedly diverging to apex; wing markings as in Fig. 3 View Figures 3, 4 (male) ......................................................... divergens n.sp.

—— Distal parts of veins 3 and 4 curved, not divergent; wing markings as in Fig. 5 View Figures 5, 6 (female) ........................................................................................ robertsi n.sp.

8 Hind basitarsus less than one third length of hind tibia ( Fig. 12 View Figures 11–13 ); discal crossvein curved, but not with general oblique orientation; brown wing markings diffuse and irregular (at least in male, Fig. 11 View Figures 11–13 ) ................................................................................................. brevitarse n.sp.

—— Hind basitarsus more than one third length of hind tibia; discal crossvein usually with general oblique orientation, despite curvature; wing markings variable, but not as above ................................................................ 9

9 Scutellum tawny-orange .......................................................................................................... 10

—— Scutellum black or brown-black .............................................................................................. 12 10 Mid coxa with distomedial brush of very dense black setulae ( Fig. 40 View Figures 39–41 ); posteroventral angle of sternopleuron (katepisternum) with only very fine pale setulae .......................................................................... aurantium n.sp.

—— Mid coxa without such brush of dense, coarse, black setulae ( Figs 34 View Figures 33, 34 , 38 View Figures 37, 38 ); posteroventral angle of sternopleuron (near mid coxa) with some black setulae ................................................................................................. 11

11 Dark brown stripe enclosing both anterior and discal crossveins ( Figs 35, 36 View Figures 35, 36 ); base of submarginal cell brown; first costal cell extensively microtrichose; discal crossvein less than twice as long as anterior crossvein .................................................................................... martini n.sp.

—— Only incomplete brownish stripe on anterior and discal crossveins ( Fig. 33 View Figures 33, 34 ); base of submarginal cell hyaline; first costal cell bare except near distal extremity; discal crossvein more than twice as long as anterior crossvein .................................................................. grande n.sp.

12 Postfrons yellow, with small black markings posteriorly; fore femur entirely dark brown; wing markings and contour of vein 2 approximately as in Fig. 21 View Fig .................................................................. flavifrons n.sp.

—— Postfrons largely black; fore femur yellow on at least basal third; wing markings otherwise; vein 2 usually with more definite and uneven curvature ............................................................................................................... 13

13 Penultimate section of vein 4 c. as long as discal crossvein; anterior and discal crossveins enclosed in well separated blackish zones ( Fig. 22 View Fig ) .......................................................................................................... ismayi n.sp.

—— Penultimate section of vein 4 much shorter than discal crossvein; wing markings otherwise ........................................................................................................ 14

14 Fore femur yellow basally, brown distally; first basal cell with brown to blackish transverse mark (smaller in male) c. halfway between basal and anterior crossveins; second section of vein 4 almost straight; penultimate section of vein 4 not shorter than anterior crossvein; distomedial lobe of mid coxa prominent but broadly rounded, setulose, but without single isolated spinescent bristle ( Fig. 29 View Figures 27–29 ); male: hind basitarsus broadened, compressed ............................................................................................................... bickeli n.sp.

—— Fore femur entirely yellow; first basal cell with substantial dark mark only at distal extremity; second section of vein 4 slightly curved; penultimate section of vein 4 much shorter than anterior crossvein; distomedial lobe of mid coxa narrowed, setulose, and with one isolated strongly spinescent apical bristle; male: hind basitarsus slender, cylindrical ................................................................................ 15

15 Point of junction of discal crossvein with vein 4 located on hyaline incision of dark zone ( Fig. 43 View Figures 42–44 ); second basal cell with apical bare spot delimited by narrow microtrichose strip; penultimate section of vein 4 more than half as long as anterior crossvein; mid coxa with elongate finger-like distomedial extension lacking marginal ridge ( Fig. 47 View Figures 45–47 ); male: wing with apical dark zone almost as extensive as in female ( Fig. 42 View Figures 42–44 ); lobe of preglans with many peg-like spinules ( Fig. 46 View Figures 45–47 ) ................................................................ monstrans n.sp.

—— Point of junction of discal crossvein with vein 4 located within oblique dark band ( Figs 48, 49 View Figures 48–51 ); second basal cell with solid apical microtrichose zone; penultimate section of vein 4 less than half as long as anterior crossvein; mid coxa with distomedial extension narrow, but less elongate, with sharp marginal ridge extending almost to apex ( Fig. 51 View Figures 48–51 ); male: wing with apical dark zone much reduced ( Fig. 49 View Figures 48–51 ); lobe of preglans without spinules ( Fig. 52 View Figures 52, 53 ) ............................................................................ papuanum (Hennig)

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Diptera

Family

Platystomatidae

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