Ophiomyia, Braschnikov, 1897

Guglya, Yu. A., 2014, Mining Flies Of The Genus Ophiomyia (Diptera, Agromyzidae) Of Eastern Ukraine And Adjacent Territories: Review Of The Species Without A Fasciculus, Vestnik Zoologii (Vestn. Zool.) 48 (1), pp. 51-66 : 62-65

Key to males Ophiomyia species of Eastern Ukraine and adjacent territories

1. Vibrissal fasciculus absent (fig. 1, 25, 57). ............................................................................................................ 2

— Vibrissal fasciculus present (see Guglya, 2013: fig. 1, 11). ................................................................................ 13

2. Second crossvein lacking; costa reaching just beyond R 4+5; costal and radial veins beige basally and darker apically, other veins white; wing whitish. Facial keel flat (fig. 5, 6). Basiphallus Н-shaped, with two separate arms, not fused basally (fig. 7, 8). .......................................................................... O. aeneonitens (Strobl, 1873)

— Second crossvein present. Other characters variable. ......................................................................................... 3

3. Frorb sta long, very thick, proclinate (fig. 32, 44). .............................................................................................. 4

— Frorb sta short or slightly elongate, sparse, either reclinate or reclinate and proclinate together (fig. 1, 12, 18, 29). ....................................................................................................................................................................... 5

4. 3 dc. Basiphallus with elongated left arm. Endophallus 5 × as narrow as mesophallus (ventral view) (fig. 34, 35). ................................................................................................................................ O. nasuta (Melander, 1830)

— 2 dc. Basiphallus V-shaped with left arm shorter. Endophallus 1.3–1.5 × as narrow as mesophallus (ventral view) (fig. 46, 47). ............................................................................................................. O. pinguis (Fallén, 1820)

5. Orbit strongly projected above eye in profile (fig. 57, 61). ................................................................................. 6

— Orbit not projected or slightly projected above eye in profile (fig. 1, 18). ....................................................... 9

6. Facial keel flattened, moderately wide (1.2 × as wide as base of antenna) and rounded ventrally (fig. 61, 62). Basiphallus connected with distiphallus complex with membrane as long as basiphallus. All phallus complex elongate. Apical process on distiphallus bifid (fig. 63, 64). ................................. O. vanyushai sp. n.

— Facial keel absent (fig. 26, 39). ................................................................................................................................ 7

7. Lunule very high, 0.35 × as high as maximum height of eye (anterior view), in centre of upper margin slightly tapered, hardly reaching of ocellar triangle (fig. 57, 58). Distiphallus complex elongate-trapezoidal (fig. 59–60). ........................................................................................................................ O. simplex (Loew, 1869)

— Lunule much narrower, 0.1–0.16 × as high as maximum height of eye (anterior view) (fig. 13, 26). .......... 8

8. Gena angled anteriorly (lateral view); eye small, 0.6× as high as height of head; very long proboscis (fig. 25, 26). Distiphallus-endophallus complex 4 × as long as its width. Basiphallus consists of two wide triangular connected at base arms (fig. 27, 28). .................................................................... O. longilingua (Hendel, 1920)

— Gena circular anteriorly (lateral view); eye large, 0.8× as high as maximum height of head; proboscis normal (fig. 38, 39). Basiphallus with strongly chitinized, linear lateral pieces; one arm extending to endophallus ( Fig 40 ). ............................................................................................................... O. orbiculata (Hendel, 1913)

9. Both reclinate and proclinate frorb sta present. ................................................................................................ 10

— All frorb sta reclinate. ............................................................................................................................................ 11

10. Frorb sta long, mainly proclinate, a few at level of fr s reclinate; orbit only slightly projected above eye in profile; upper margin of lunule rounded (fig. 18, 19). Endophallus not reaching of posterior margin of distiphallus (fig. 20, 21). .............................................................................................. O. cunctata (Hendel, 1920)

— Frorb sta short, slightly incurving, mainly reclinate, a few at level of orb s proclinate; orbit not projected above eye in profile; upper margin of lunule slightly pointed (fig. 12, 13). Distiphallus and endophallus posteriorly of the same length (fig. 14). .......................................................................... beckeri (Hendel, 1923)

11. Gena rounded; vibrissa absent (fig. 50, 68). ....................................................................................................... 12

— Gena angular, with slightly stretched blunt top oriented frontally; vibrissa present. Distiphallusmesophallus complex dorsally with hook (fig. 1–4)............................ ……………………… O. adunca sp. n.

12. Costa ending exactly on M; 2 dc; orbit matt, slightly projected above eye in profile (lateral view); 1st flagellomere relatively small, rounded (lateral view); calypter beige, margin and fringe brown; halter dark brown (fig. 68, 69). Distiphallus distally rounded, as long as endophallus (fig. 70–71) ................................................ .............................................................................................................................................. O. vimmeri Černý, 1994

— Costa ending slightly beyond M; 3 dc; orbit slightly shining, more projected above eye in profile (anterior view); 1st flagellomere of medium size, elongate (lateral view); calypter grey, margin and fringe black; halter black (fig. 50, 51). Distal end of distiphallus broadly rounded with one small distomedial process (fig. 52–54). ........................................................................................................................ O. pulicaria (Meigen, 1830)

13. Six fronto-orbital setae (see Guglya, 2013: fig. 18, 19). Basiphallus slightly shorter than distiphallusmesophallus complex. Endophallus short, not reaching distal branches of basiphallus (see Guglya, 2013: fig. 20, 21). .................................................................................................................................................................... .......................................................................................................................................... O. delphinii Hendel, 1926

— Five or four fronto-orbital setae. .......................................................................................................................... 14

14. Five fronto-orbital setae, one can be very short. ................................................................................................ 15

— Four fronto-orbital setae. ...................................................................................................................................... 17

15. Orbit strongly projected above eye in profile; gena wide, subrectangular; vibrissal fasciculus strong, short, straight and directed slightly upwards; facial bulb and most of lunule with distinct furrow (see Guglya, 2013: fig. 48, 49). Left arm of basiphallus very weakly chitinized. Distiphallus triangular and elongate. Endophallus distally slightly shorter than distiphallus (see Guglya, 2013: fig. 50, 51). ........................................................................................................................................... O. malalata Guglya, 2013

— Orbit slightly projected above eye in profile; gena wider anteriorly, stretched forward; vibrissal fasciculus longer, incurving upwards; furrow on facial bulb absent or very small and shallow (see Guglya, 2013: fig. 59, 60, 67, 68). ................................................................................................................................................... 16

16. Lunule wide, rounded, 0.2 × as high as maximum height of eye (anterior view); facial bulb 0.7 × as wide as pedicel, oval, with small furrow; all orb s and fr s long and strong (see Guglya, 2013: fig. 67, 68). Distiphallus complex with black U-shaped process dorsally (ventral view) (see Guglya, 2013: fig. 69, 70). ................. ................................................................................................................................... O. melandryi de Meijere, 1924

— Lunule wide but low, 0.12 × as high as maximum height of eye (anterior view), in centre of upper margin tapered; facial bulb 0.6 × as wide as pedicel, flattened, without furrow, but with wide deepening at level of pedicel; first fr s slim, badly visible (see Guglya, 2013: fig. 59, 60). Distiphallus complex with black Vshaped process dorsally (ventral view) (see Guglya, 2013: fig. 61–63). ....... O. melandricaulis Hering, 1943

17. Gena very narrow, strongly projected forward (see Guglya, 2013: fig. 6, 11, 22, 79). .................................. 18

— Gena medium or wide (see Guglya, 2013: fig. 1, 33, 115). ............................................................................... 21

18. Head rounded in profile, 0.8–0.85 × as long as high (measure along the longest axis of the eye); facial bulb wide, spherical with furrow; gena: produced and fingerlike in male, with very long, slender, curved dorsaly fasciculus (see Guglya, 2013: fig. 79, 80). Distiphallus narrow, slightly curved, with two short, curved dorsal processes (lateral view). Endophalus very small (see Guglya, 2013: fig. 81, 82). ................................................ ................................................................................................................................ O. ranunculicaulis Hering, 1949

— Head ellipsoid in profile, 0.5–0.6 × as long as high (measure along the longest axis of the eye); facial bulb without furrow; gena extremely elongated and uniformly narrowing, with short vibrissal fasciculus (see Guglya, 2013: fig. 6, 7, 11, 12). .............................................................................................................................. 19

19. Ocellar triangle very long, nearly reaching lunule; lunule very shallow, 0.02× as high as maximum height of eye (anterior view); gena uniformly incurving upwards, vibrissal fasciculus very short but thick (see Guglya, 2013: fig. 11, 12, 15). Endophallus posteriorly longer than mesophallus (ventral view), and curved dorsally (lateral view) (see Guglya, 2013: fig. 13, 14). .................................. O. curvipalpis (Zetterstedt, 1848)

— Ocellar triangle reaching only the level of 2nd fr s; lunule 0.04–0.07 × as high as height of eye (anterior view); vibrissal fasciculus longer and sharply directed upwards. Endophallus posteriorly shorter than mesophallus (ventral view), and straight (lateral view) (see Guglya, 2013: fig. 6, 7, 22, 23, 26). ..................... 20

20. Gena incurved apically; lunule with dorsal margin flat; orbit wide (anterior view); orb s and fr s within orbit (see Guglya, 2013: fig. 22, 23). Endophallus straight and shorter than distiphallus posteriorly (ventral and lateral view) (see Guglya, 2013: fig. 24, 25). ........................................................ O. disordens Pakalniškis, 1998

— Gena straight; lunule wider medially with dorsal margin rounded; orbit narrower; orb s and fr s are on the border of orbits and frons (see Guglya, 2013: fig. 6, 7). Endophallus shorter than mesophallus and curved (ventral, dorsal and lateral view) (see Guglya, 2013: fig. 8–10). .................................. O. crispa Guglya, 2013

21. Calypter and fringe beige; margin brown. ........................................................................................................... 22

— Calypter grey, color of fringe and margin varied. ............................................................................................. 24

22. Wing yellowish; ocellar triangle matt (anterior view), without clear contours; upper margin of lunule flattened (see Guglya, 2013: fig. 71, 72). Right arm of basiphallus spirally curved; left arm almost entirely absent, vestigial (see Guglya, 2013: fig. 73, 74). ...................................................... O. mohelensis Černý, 1994

— Wing hyaline; ocellar triangle shining (anterior view), with clear contours; upper margin of lunule rounded (see Guglya, 2013: fig. 45, 116). ............................................................................................................................ 23

23. Furrow on keel widening dorsally onto lunule, where it strongly widens; orbit projected above eye in profile (see Guglya, 2013: fig. 44, 45). Distiphallus complex linear, tubular. Basiphallus well developed, with two arms (see Guglya, 2013: fig. 46, 47). .................................................... O. heracleivora Spencer, 1957

— Keel furrow lacking; orbit not projected above eye in profile (see Guglya, 2013: fig. 115, 116). Distiphallus widest on the distal half with a tubular dorsomedial exvagination. Endophallus posteriorly shorter than mesophallus, but reaching anterior margin of right arm of basiphallus (see Guglya, 2013: fig. 117, 118). .... ............................................................................................................................................. O. versera Guglya, 2013

24. Costa not reaching M. ........................................................................................................................................... 25

— Costa reaching M. .................................................................................................................................................. 26

25. Costa ending between R 4+5 and M; vibrissal fasciculus long, strong basally, apical half sharply narrowed, directed upwards (see Guglya, 2013: fig. 119, 120). Basiphallus 1.4 × as long as distiphallus complex. Endophallus posteriorly shorter than distiphallus (see Guglya, 2013: fig. 121, 122). ........ O. vitiosa Spencer, 1964

— Costa reaching R 4+5; vibrissal fasciculus in male strong, uniformly narrowing and curved dorsaly (see Guglya, 2013: fig. 97, 98). Distiphallus complex bilobate, with tubular spinules. Endophallus posteriorly of the same length with distiphallus (ventral view) (see Guglya, 2013: fig. 99, 100). .... O. slovaca Černý, 1994

26. Lunule of medium length, 0.13–0.18× as high as maximum height of eye (anterior view) (see Guglya, 2013: fig. 30, 38, 53). ........................................................................................................................................................ 27

— Lunule short, 0.03–0.07 × as high as maximum height of eye (anterior view) (see Guglya, 2013: fig. 2, 34) .. ................................................................................................................................................................................... 29

27. Wing length> 2.4 mm; lunule rounded; orbit significantly projected above eye in profile (see Guglya, 2013: fig. 37, 38) Distiphallus 1.2× as long as basiphallus. Distal margin of basiphallus reaching 0.2 of length of distiphallus and posterior margin of endophallus (see Guglya, 2013: fig. 39, 40). ............................................ ................................................................................................................................... O. fennoniensis Spencer, 1976

— Wing length <2.2 mm; lunule with tapered upper margin; orbits not or slightly projected above eye in profile (see Guglya, 2013: fig. 30, 53). Other characters variable. ................................................................... 28

28. Facial bulb with distinct furrow at flagellomere base level; orbit narrow, matt (anterior view) (see Guglya, 2013: fig. 52, 53). Distiphallus complex widest medially (ventral view). Distiphallus complex as long as basiphallus. Endophallus wide, curved dorsally and posteriorly equal to the distiphallus (lateral view) (see Guglya, 2013: fig. 54, 55). ............................................................................................. O. maura (Meigen, 1832)

— Facial bulb (at the level of pedicel and base of antenna) and lunule with deep furrow; orbit narrow, slightly shining (anterior view) (see Guglya, 2013: fig. 29, 30). Distiphallus complex elongate, oval, widest subbasally. Basiphallus 0.9× as long as distiphallus complex. Endophallus narrow, straight and not reaching posterior margin of distiphallus (see Guglya, 2013: fig. 31, 32). ............................... ........................................................................................................................ O. eucodonus Hering, 1960

29. Lunule concave dorsomedially; facial bulb wide, spherical, as wide as pedicel. Frons without medial longitudinal line (see Guglya, 2013: fig. 104, 105). Endophallus 1.5× as wide as distiphallus (lateral view) (see Guglya, 2013: fig. 106, 107). ............................................................................................. O. spenceri Černý, 1985

— Lunule without deepening at upper margin; facial bulb medium-sized or narrow, 0.5–0.8× as wide as pedicel (see Guglya, 2013: fig. 2, 33), if facial bulb equal in width to pedicel, then frons divided by distinct medial longitudinal line (see Guglya, 2013: fig. 109). ....................................................................................... 30

30. Frontal medial longitudinal line well marked (see Guglya, 2013: fig. 2, 91, 109). ........................................ 31

— Frontal medial longitudinal line lacking (see Guglya, 2013: fig. 34, 76, 87). ................................................. 33

31. Facial bulb narrower, 0.55× as wide as pedicel, with short medial furrow; (see Guglya, 2013: fig. 90, 91). Axis of distiphallus complex, endophallus and basiphallus are parallel and on the equal distance from each other (lateral view) (see Guglya, 2013: fig. 92, 93). .................................................. O. skanensis Spencer, 1976

— Facial bulb wider, 0.8–1.0× as wide as pedicel (see Guglya, 2013: fig. 2, 109). Other characters variable. .........................................................................................................................................................................................32

32. Lunule rounded; furrow raised through lunule and facial bulb; vibrissal fasciculus strong, long, pale at the end (see Guglya, 2013: fig. 108, 109). Distiphallus complex narrow and long, 1.25× as long as basiphallus. Endophallus posteriorly shorter than distiphallus (lateral view) (see Guglya, 2013: fig. 110, 111). ................ ......................................................................................................................................... O. submaura Hering, 1926

— Lunule rectangular, tapered; facial bulb without furrow, but of complicated shape; vibrissal fasciculus shorter, strong at base and sharply narrowing apically, uniformly dark (see Guglya, 2013: fig. 1–2). Length of distiphallus complex equal to basiphallus. Endophallus posteriorly equal to distiphallus (lateral view) (see Guglya, 2013: fig. 3–5). ............................................................................... O. australis Guglya, 2013

33. Orbit not projected above eye in profile; vibrissal fasciculus very strong, uniformly curving upwards, short (see Guglya, 2013: fig. 75, 76). Basal lobe of distiphallus thickly dotted (see Guglya, 2013: fig. 77, 78) .......... ........................................................................................................................................... O. punctata Guglya, 2013

— Orbit visibly projected above eye in profile; vibrissal fasciculus straight and long (see Guglya, 2013: fig. 33, 86). ............................................................................................................................................................................ 34

34. Lunule slightly rounded; vibrissal fasciculus uniformly dark (see Guglya, 2013: fig. 86, 87). Distiphallus oval, with waved contours (ventral view). Basiphallus relatively massive. Endophallus posteriorly shorter than distiphallus (see Guglya, 2013: fig. 88, 89). ................................................... O. senecionina Hering, 1944

— Upper margin of lunule flat and tapered in the centre; vibrissal fasciculus straight, directed slightly upwards, white at the end (see Guglya, 2013: fig. 33, 34). Distiphallus narrow, with rectangular distal part and triangular proximal part, posteriorly as long as endophallus, that reaching anterior branches of basiphallus. Basiphallus 1.28× as long as distiphallus (see Guglya, 2013: fig. 35, 36). ............................................................. .................................................................................................................................. O. fasciculusalba Guglya, 2013

Figures

Fig. 38–43. O. orbiculata (Hendel): 38, 39 — male head; 40 — phallus, lateral view; 41 — female head; 42 — egg guide, left blade; 43 — spermatheca. Scale bar 0.1 mm.