Phasia subcoleoptrata (Linnaeus, 1767)

Sun, Xuekui & Marshall, Stephen A., 2003, Systematics of Phasia Latreille (Diptera: Tachinidae), Zootaxa 276 (1), pp. 1-320 : 157-159

3.6. The Phasia subcoleoptrata species­group

The Phasia subcoleoptrata species­group includes part of the subgenus Phasia sensu Herting 1984 .

Diagnosis: Head compressed anteriorly or spherical; eyes separated by a distance usually larger than ocellus; fronto­orbital plate with 1­3 rows of hairs laterally, never swollen; dorsal facets of eyes larger than ventral facets; inner margins of eyes parallel. Parafacial bare; lower margin of face perpendicular or projecting; Sublunular bulla indistinct. First flagellomere short; oral opening short. Thorax black, scale­like setae absent. Scutellum with two pairs of marginal setae. Abdomen subovate, black or with yellow spots. Female sternite VII variable in shape.

Key to species of the Phasia subcoleoptrata species­group

(The males of Phasia africana , Phasia australiensis , Phasia cana , Phasia clavigralla , and the females of Phasia lauta , Phasia malayana , Phasia subnitida are unknown)

1. Female .......................................................................................................................... 2

­ Male ............................................................................................................................ 15

2. One katepisternal seta; sternite VII abruptly bent ventrally ......................................... 3

­ Two or more katepisternal setae; sternite VII bent dorsally or straight, or gradually bent ventrally ................................................................................................................ 6

3. Mesoscutum black, shining, extremely flattened; Australian species ............................ ..................................................................... P. hippobosca ( Paramonov, 1958) ♀

­ Mesoscutum pruinose, never flattened ......................................................................... 4

4. Tibia,andusuallyfemorayellow,atleasttibia;thoraxandabdomengreyishyellowpruinose ..................................................................................... P. fenestrata ( Brooks, 1945) ♀

­ Tibia and femora black; thorax and abdomen grey pruinose ...................................... 5

5. Eyesseparatedbyadistanceequalorgreaterthanwidthofocellartriangle;Nearcticspecies ......................................................................................... P. albipennis ( Brooks, 1945)

­ Eyes separated by a distance less than width of ocellar triangle; Palaearctic species .... ........................................................................... P. subcoleoptrata (Linnaeus, 1767) ♀

6. Apex of sternite VII broad in ventral view ..................................................................7

­ Apex of sternite VII pointed or very narrow in ventral view .......................................9

7. Sternite VII knobbed (Fig. I­15.4) ............................ P. clavigralla Sun , new species ♀

­ Sternite VII not knobbed .............................................................................................. 8

8. Sternite VII bent ventrally (Fig. I­2.3) ......................... P. africana Sun , new species ♀

­ Sternite VII almost straight (Fig. I­38.7) .............................. P. nasalis ( Bezzi, 1908) ♀

9. Abdomen with yellow patch or dark yellow spots......................................................10

­ Abdomen totally black ...............................................................................................12

10. Wing pictured; sternite V longer than sternite VI; apex of sternite VII hook­like ......... ...................................................................... P. multisetosa ( Villeneuve, 1923) ♀

­ Wing hyaline; sternite V not longer than sternite VI; apex of sternite VII not hook­like ..................................................................................................................................... 11

11. Sternite VII short, 1.4 times as long as sternite VI (Fig.I­58.6­7) .................................. ................................................................................ P. singuliseta Sun , new species ♀

­ Sternite VII long, 1.6­1.7 times as long as sternite VII (Fig. I­2.3­4) ............................ ........................................................................................... P. cana Sun , new species ♀

12. Sternite VII extremely laterally flattened on apical half (Fig. I­9.3­4) ........................... ............................................................................ P. australiensis Sun , new species ♀

­ Sternite VII not or only slightly flattened on apical half ............................................ 13

13. Mesoscutum shining, without pruinosity ....................... P. woodi Sun , new species ♀

­ Mesoscutum pruinose, with distinctly black longitudinal vittae ................................ 14

14. Lower margin of face perpendicular, not projecting; abdomen and gena usually greyish yellow pruinose ................................................... P. chilensis ( Macquart, 1851) ♀

­ Lower margin of face projecting; abdomen and gena usually grey pruinose ................. ................................................................................ P. rufiventris ( Macquart, 1851) ♀

15. One katepisternal seta ................................................................................................. 16

­ Two or more katepisternal setae ................................................................................. 20

16. Tergites shining, without pruinosity ........................................................................... 17

­ Tergites pruinose, if shining, then wing pictured ....................................................... 18

17. Mesoscutum shining, extremely flattened; wing pictured; lower margin of face projecting, visible in profile; phallus short; surstylus not broadened; syncercus deeply notched posteriorly............................................ P. hippobosca ( Paramonov, 1958) ♂

­ Mesoscutum pruinose, not flattened; wing hyaline; lower margin of face perpendicular, not projecting; phallus long; surstylus broadened; syncercus shallowly notched posteriorly ........................................................................ P. lauta Sun , new species ♂

18. Mesonotum greyish yellow pruinose; legs, at least tibia yellow or brown .................... ...................................................................................... P. fenestrata ( Brooks, 1945) ♂

­ Mesonotum grey pruinose; legs black ........................................................................ 19

19. Distiphallus with a pair of strong saw tooth and several small saw tooth; Nearctic species ....................................................................................... P. albipennis ( Brooks, 1945) ♂

­ Distiphallus with a row of regular small saw tooth only; Palaearctic species ............... .......................................................................... P. subcoleoptrata (Linnaeus, 1767) ♂

20. Scutellum yellow ........................................................................................................ 21

­ Scutellum black .......................................................................................................... 22

21. Apex of surstylus strongly bent dorsally; cercus short and broad (Figs. I­60.5) ............ .................................................................................... P. subnitida Sun , new species ♂

­ Apex of surstylus dorsoventrally flattened; cercus slender (Figs. I­37.3­4) .................. .............................................................................. P. multisetosa ( Villeneuve, 1923) ♂

22. Lower margin of face perpendicular, not projecting .................................................. 23

­ Lower margin of face projecting ................................................................................ 24

23. Mesoscutum densely pruinose, with longitudinal vittae; syncercus deeply notched posteriorly; phallus membranous.................................... P. chilensis ( Macquart, 1851) ♂

­ Mesoscutum not distinctly pruinose; syncercus shallowly notched posteriorly; phallus node­like, partly sclerotized ..................................... P. malayana Sun , new species ♂

24. Phallus long, haired, apex ball­like ............................................................................ 25

­ Phallus short, not haired, apex branched or pointed .................................................. 26

25. Cercus slender; surstylus not arched .................................... P. nasalis ( Bezzi, 1908) ♂

­ Cercus short; surstylus arched dorsally .................. P. singuliseta Sun , new species ♂

26. Syncercus broad, deeply notched posteriorly; surstylus not broadened; apex of distiphallus pointed, not branched ...................................... P. woodi Sun , new species ♂

­ Syncercus slender, not notched posteriorly; surstylus broadened; apex of distiphallus branched ............................................................... P. rufiventris ( Macquart, 1851) ♂