Geostiba (Tropogastrosipalia) calcidica, Homson, 1974

Homson, 1974, Lichenology in North America, 1947 - 1972., Linzer biologische Beiträge 61, pp. 45-55 : 45-55

Geostiba (Tropogastrosipalia) calcidica sp.n. ( Figs 64-70 )

Holotype: Greece: Chalkidiki , 12 km NW Megali Panagia, 1000 m, 40°48'01"N, 23°33'52", 21.5.2005, leg. Ch. Bayer / Holotypus Geostiba calcidica sp.n. det. V. Assing 2006 (cAss).

D e s c r i p t i o n: 2.8 mm (abdomen fully extended). Coloration: head blackish brown; pronotum and elytra castaneous brown; abdomen blackish, with segments III and IV paler; legs testaceous; antennae brown, with the two basal antennomeres yellowish brown.

Facies as in Fig. 64 . Head with very shallow microreticulation, shiny ( Fig. 65 ); puncturation very fine and very sparse, barely noticeable. Eyes relatively small ( Fig. 66 ), weakly protruding from lateral outline of head, approximately 1/3 the length of postocular region in dorsal view.

Pronotum with weak sexual dimorphism; puncturation very sparse and very fine. microsculpture shallow, surface with distinct shine. Elytra with moderate sexual dimorphism, less than 0.6 times as long as pronotum.

Abdomen with distinct, but shallow microsculpture, with fine and sparse puncturation; anterior tergites without sexual dimorphism; posterior margin of tergite VII with barely noticeable rudiment of a palisade fringe.

: pronotum approximately as long as wide, posterior margin distinctly convex ( Fig. 65 ); elytra with moderately dense, rather coarsely granulose puncturation and with shallow impression, sutural carina near apex of scutellum short, abruptly elevated, and relatively broad ( Figs 65, 67 ); process of tergite VII short, in lateral view rather acute apically and in antero-dorsal view broad and apically rounded ( Figs 68-69 ); posterior mar-

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gins of tergite and sternite VIII broadly convex; median lobe of aedeagus with very slender cristal process ( Fig. 70 ); apical lobe of paramere shaped as in other species of the subgenus.

: unknown.

E t y m o l o g y: The name (Lat., adj.) is latinised from Chalkidike, the area where the type locality is situated. C o m p a r a t i v e n o t e s: Using the key in ASSING (2005a), G. calcidica would key out at couplet 63, together with G. menikioensis ASSING from northeastern Greece. From this species it is separated by the broader and more abruptly elevated sutural carinae, by the sparser and coarser puncturation of the male elytra, and by the broader and apically rounded process of the male tergite VII (antero-dorsal view). To accommodate the new species, the key is modified as follows: 62: elytra with short sutural carinae or indistinct elevations near apex of scutellum...63 -: elytra with pronounced sutural carinae extending almost to posterior margin of

elytra...........................................................................................................................65 63: process of tergite VII in large shorter (e. g. Figs 68-69 ); cristal process of

aedeagus short and slender. Species from northeastern Greece..................................64 -: process of tergite VII in large longer and more erect (e. g. Figs A04b: 45-

46); cristal process of aedeagus larger. Species from northwestern or central

Greece.......................................................................................................................64a 64: process of tergite VII in antero-dorsal view slender and apically rather acute

( Figs A99 : 59-60); elytra with relatively dense and not particularly coarse

puncturation, and with more slender and less abruptly elevated carina near apex of

scutellum; aedeagus as in Figs A99 : 53-56. Menikio, Vrontóus (NE-Greece) ...............

.................................................................................................. G. menikioensis ASSING

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-: process of tergite VII in antero-dorsal view broader and apically rounded ( Figs 68-69 ); elytra with sparser, coarse, and somewhat granulose puncturation; sutural carinae near apex of scutellum abruptly elevated and relatively broad ( Figs 65, 67 ); median lobe of aedeagus as in Fig. 70 . Chalkidiki.............................. G. calcidica sp.n.

64a: aedeagus with larger cristal process ( Figs A99 : 20, 22). Ipiros: Xerovuni Oros ....... ...................................................................................... G. xerovuniana (SCHEERPELTZ)

-: aedeagus with more slender cristal process (Fig. A04b: 48). Thessalia: Ossa Oros................................................................................................... G. ossaica ASSING

65: process of tergite VII very long, not distinctly erect, almost horizontally projecting caudad (Figs. A00a: 11-12); sutural carinae long and broad, not closer to apex of scutellum than to posterior elytral margin; aedeagus as in Figs A00a: 7-8. Northern Greece ( Flórina, Kozani ) ............................................ G. torisuturalis ASSING

-: process of tergite VII distinctly erect; sutural carinae shorter and narrower, closer to apex of scutellum than to posterior elytral margin; aedeagus as in Figs A99 : 91-93. Fthiótis, Fokis (Map A01b: 1)........................................ G. itiensis ASSING

D i s t r i b u t i o n a n d b i o n o m i c s: The species is known only from one locality in the Chalkidike (=Khalkidhiki) peninsula, Greece, where the holotype was collected at an altitude of 1000 m.

Figures

Figs 64-70: Geostiba calcidica sp.n. (holotype): (64) habitus; (65) forebody; (66) head in lateral view; (67) elytra in lateral view; (68) abdominal tergite VII in lateral view; (69) process of tergite VII in antero-dorsal view; (70) median lobe of aedeagus in lateral view. Scale bars: 64: 1.0 mm; 65: 0.5 mm; 66-67: 0.2 mm; 68-70: 0.1 mm.

Figs 98-107: Geostiba orduica sp.n.: (98) habitus; (99) forebody; (100) head in lateral view; (101)