Melanagromyza kerkinica, Černý, 2011

Černý, Miloš, 2011, Agromyzidae (Diptera) in the vicinity of the Kerkini Lake with descriptions of eight new species from Greece, Acta Entomologica Musei Nationalis Pragae 51 (1), pp. 299-347 : 309-312

Melanagromyza kerkinica sp. nov.

( Figs. 23–32 )

Type locality. Greece, Macedonia, Serron, Krousia Mts., Kerkini Village, 41°11′32.4′′N 23°03′59.5′′E, 190 m a.s.l.

Type material. HOLOTYPE: J, ‘ Greece: Kerkini / Krousia Mts., 190 m / 30.v.-5.vi.2007, MT / G. Ramel leg. // Project Kerkini / 41.11.32,4N/23.03.59,5E // Melanagromyza kerkinica sp. nov. / det. M. Černý 2010 // Holotype’ ( NMPC). Loc. No. 9. Terminalia dissected, mounted on the same pin (medium: glycerine and gum resin).

Description (male, holotype). Head black, ocellar triangle and frontal vitta black, matt; fronto-orbital plate black, slightly shining. Antennae black, only scape and arista brown; antennal cavities black, slightly shining. Scutum black, grey dusted, matt; scutellum black, matt. Notopleuron and postpronotal lobe paler, leathery brown. Wing hyaline, base of wing ochre brown, veins pale brown. Calypters grey, their margin and fringe pale ochre brown. Knob and base of halteres brown, stem ochre yellow. Legs brown. Abdomen black.

Head ( Figs. 24–25 ). Frons broad, about as wide as 1.64 width of eye at level of anterior ocellus, slightly tapering toward lunule. Fronto-orbital plate distinct in profile only as narrow ring in front of eye. Ocellar triangle large, anterior tip reaching line of upper ori setae. Lunule higher than semicircle, its upper margin at upper ori setae line, of same height and length, with a longitudinal groove in the middle and slightly contracted at level of lower ori seta. Base of antennae separated by distance equal to 0.3 width of scape. First flagellomere spherical, covered with short hairs. Arista only 0.78 times as long as eye height, shortly setulose, spindle-shaped, dilated at base. Gena highest in middle part, reaching 0.17 height of eye. Parafacialia very narrow. Two ors and two ori setae present. Orbital setulae uniserial, reclinate, only a few setulae at level of lower ori seta erect. One vi seta present. Epistoma lacking. Eye bare.

Scutum with 0+2 dc setae. Acrostichal setulae in 8–10 rows, some hairs reaching beyond line of 2 nd dc setae. Numerous presutural and postsutural ia setulae present, as long as acr setulae. One ia seta present, only 0.55 times as long as 2 nd dc seta. One strong epa seta and 1 shorter ipa seta present. All usual setae present: 1 oc, 1 pvt, 1 vte, 1 vti, 1 ppl, 1 hu, 1+1 ntp, 1 mspl, 1 stpl, 1 sa, 1 prs, 1 bs, 1 as.

Wing ( Fig. 23 ) 2.15 mm long, costa reaching tip of vein M 1. Relation of costal sections 2–4 as 4.78: 1.17: 1.00. Last section of CuA 1 short, only 0.83 as long as last but one section.

Legs. Mid tibiae with 2 strong and short pd setae.

Abdomen oval, 6 th tergite 1.47 times as long as 5 th tergite. Male terminalia ( Figs. 26–32 ): epandrium ( Fig. 28 ) slightly broader than high in relation 1.06: 1.00, densely covered by setae. Surstylus ( Fig. 28 ) with a group of long setae on ventral margin and strong spines on inner surface. Cerci long, reaching 0.42 height of epandrium, with group of long and strong setae on inner side. Phallus ( Figs. 26–27 ) about 0.2 length of phallapodeme, symmetrical, shorter than hypandrium, only 0.73 of its length, distiphallus complex twice as long as high, distal tubules long and divergent. Mesophallus long, posteriorly gradually dilated. Basiphallus broad basally, its arms apically connected in shape of an A. Hypandrium ( Figs. 31–32 ) Yshaped, strongly pigmented, with broad arms, narrow and long hypandrial apodeme laterally depressed and apically dilated. Ejaculatory apodeme ( Figs. 29–30 ) Y-shaped, 1.78 times as long as deep, blade asymmetrical.

Female. Unknown.

Total body length 2.43 mm.

Differential diagnosis. Melanagromyza kerkinica sp. nov. is characterized by the presence of reclinate orbital setulae arranged in one row and fronto-orbital plates characteristically projecting above eye in profile. It is very similar to M. pubescens Hendel, 1923 . However, this species is larger and shows a frons being twice broader than the eye; the gena is highest in the middle part, reaching 0.25 height of the eye; the first flagellomere is covered by long hairs; calypters are grey, their margin and fringe are black. Structures of the male terminalia of M. kerkinica sp. nov. are markedly different from those of M. pubescens .

Etymology. The name of M. kerkinica sp. nov. indicates locality Kerkini where the holotype was found.

Bionomics. Unknown.

Distribution. Greece ( Macedonia): Kerkini. Hitherto known only from the type locality.

Figures

Figs. 23–25. Melanagromyza kerkinica sp. nov., J. 23 – wing; 24 – head in frontal view; 25 – the same in lateral view. Scales = 0.5 mm (Figs. 24, 25) and 1 mm (Fig. 23).

Figs. 26–32. Melanagromyza kerkinica sp. nov., J. 26 – phallus in lateral view; 27 – the same in ventral view; 28 – epandrium, surstylus and cercus in caudal view; 29 – ejaculatory apodeme in lateral view; 30 – the same in dorsal view; 31 – hypandrium in ventral view; 32 – the same in lateral view. Scales = 0.1 mm.