Gehundra sordida ( Baker, 1900 )

Domahovski, Alexandre C., 2021, Two new species of Hyalojassini (Hemiptera: Cicadellidae: Iassinae) to the genera Comanopa Blocker and Gehundra Blocker, description of the male of G. sordida (Baker) and key to species, European Journal of Taxonomy 746 (1), pp. 112-129 : 122-125

Gehundra sordida ( Baker, 1900)

Figs 32–49

Macropsis sordidus Baker, 1900: 56 .

Bythoscopus sordidus – Oman 1936: 354.

Stragania sordida – Linnavuori 1956: 18.

Iassus sordidus – Metcalf 1966: 90.

Gehundra sordida – Blocker 1979: 23, fig. 24.

Diagnosis

Pygofer ( Figs 36–38 ) ventral margin excavated basally, with rounded lobe at basal third, and short, thick setae grouped in line near midlength. Subgenital plate ( Figs 36–39 ) with external margin with rounded lobe on basal half; apex of pseudostyle subacute, with thin setae along external margin and group of thicker setae on apex. Style ( Fig. 40 ) with apophysis straight, apex rounded, curved dorsally.

Material examined

BRAZIL • 1♂;“Brasil,MS[Mato Grosso do Sul], Miranda, \ Cultura soja, 20°07’24,29”S \ 56°37’15,66”W, 122m,\ 02.II.2016, A. Specht, W. R. F. \de Camargo & H.V.B. Concone ”; DZUP 215454 • 2 ♀♀; same collection data as for preceding; “ 03.II.2016 ”; DZUP 215455-215456 • 1 ♀; same collection data as for preceding; “ Porteira , 20°06’01,22”S 56°37’06,35”W, 120m, 01.II.2016 ”; DZUP 215457 • 1 ♀; same collection data as for preceding; “ Nativa-campo , 20°06’20,20”S 56°36’52,62”W, 121m, 14.XI.2015 ”; DZUP 215458 .

Description (external characters as in the preceding description)

Male

MEASUREMENTS (mm). Total length (♂), 4.5; (♀) 4.5–4.8.

COLORATION. Head and thorax ( Figs 32–34 ) brownish-yellow. Pronotum ( Fig. 32 ) with irregular brown markings near anterior margin. Mesonotum ( Fig. 32 ) with lateral angles dark brown. Forewing ( Figs 32– 33 ) with brown setae and groups of black setae at midlength of anal margin, apex of clavus and apex of inner discal cell (variable in intensity between the specimens).

TERMINALIA. Sternite VIII ( Fig. 35 ) convex, strongly produced posterad, 1.5 times longer than wide, longer than sternites VII and VI combined; ventral surface with many small setae, except basal portion and along median line; lateral margins with small rounded lobe at basal third; apex abruptly tapered and rounded. Valve ( Figs 36–37 ) longer than wide, broadly fused laterally to pygofer; lateral margins convergent toward ventral margin, with strong integument thickening; ventral margin rounded. In lateral view, pygofer ( Figs 36–37 ) without processes, higher near basal third; dorsal margin notched after half its length; dorsoposterior margin fused to pygofer lobes, straight and oblique; ventral margin excavated basally, with rounded lobe at basal third, straight on posterior ⅔, with short, thick setae grouped in line near midlength; lateral surface without macrosetae, but with few short setae near apex. In ventral view, pygofer ( Fig. 38 ) with ventral margin folded inward, from base to apex, with short setae on inner surface. Anal tube membranous, without processes. Subgenital plate ( Figs 36–39 ) short, with well developed pseudostyle; inner margin nearly straight; external margin with rounded lobe on basal half, overlapping pygofer laterally; apex of pseudostyle subacute, with thin setae along external margin and group of thicker setae on apex. Connective amorphous. Style ( Figs 36, 40 ) long, approximately straight, apodeme and apophysis long, sub equal in length; apex rounded, curved dorsally. Aedeagus ( Figs 41–42 ), with preatrium not developed; dorsal apodeme developed, lateral margins extended laterad and posterior margin extending to almost apex of shaft; shaft slightly curved dorsally, with height approximately constant from base to apex. In ventral view, aedeagus ( Fig. 42 ) with shaft apex bifid; gonopore subapical.

Female

TERMINALIA. Sternite VII ( Figs 43–44 ) ca two times wider than long; ventral surface with short setae; posterior margin with narrow and deep notch medially. Internal sternite VIII membranous. Pygofer ( Figs 43–44 ) with many thin setae; ventral margin broadly rounded; apex obliquely truncated. Ovipositor slender, evenly curved dorsad, not surpassing pygofer apex. First valvifer ( Fig. 45 ) triangular; anterior margins of both valvifers connected by sclerotized membrane. First valvula ( Fig. 45 ) with dorsal and ventral margins, slightly convergent apically, ca 8 times longer than high at base; ventral interlocking device long, extending over basal ⅔; dorsal sculpturing area areolate starting before the midlength; apical portion ( Fig. 46 ) with ventral sculpture present only near apex, continuous with the dorsal sculpture, apex gradually tapered and acute. Second valvifer ( Fig. 49 ) ca three times higher than long. Second valvula ( Fig. 47 ) ca 10 times longer than high; dorsal and ventral margins parallel; dorsal margin with three distinct subapical teeth widely spaced; apical portion ( Fig. 48 ) dorsal margin with two rounded notches forming one rounded tooth between apex and first subapical tooth; ventral margin without denticles and with one subapical tooth. Gonoplac ( Fig. 49 ) four times longer than high; dorsoapical margin long with half length of gonoplac; external surface without dentiform cuticular projections; ventral margin broadly rounded, with few spaced macrosetae near ventral margin; apex rounded.

Remarks

Gehundra sordida is similar to G. galbina and G. cristalinensis sp. nov. in lacking long setae on ventral margin of pygofer, and is similar to G. cristalinensis sp. nov. in having the apex of style not foot-shaped. However, G. sordida can be easily separated by the subgenital plate with external margin with lobe limited to the basal half of pseudostyle (external margin with lobe occupying more than half length of pseudostyle in G. avulsa and G. cristalinensis sp. nov., and occupying entire length of pseudostyle in G. tricosa and G. galbina .

Figures

Figs 32–42. Gehundra sordida (Baker, 1900), ♂ (DZUP 215454). 32. Habitus, dorsal view. 33. Habitus, lateral view. 34. Head, ventral view. 35. Sternite VIII, ventral view. 36. Genital capsule, lateral view. 37. Pygofer, valve and subgenital plate, lateral view. 38. Pygofer, valve and subgenital plate, ventral view. 39. Subgenital plate, ventral view.40. Style, lateral view. 41. Aedeagus, lateral view.42. Aedeagus, ventral view. Scale bars in mm.

Figs 43–49. Gehundra sordida (Baker, 1900), ♀ (DZUP 215455). 43. Apical portion of abdomen, ventral view. 44. Apical portion of abdomen, lateral view. 45. First valvifer and first valvula, lateral view. 46. Apical portion of first valvula. 47. Second valvula, lateral view. 48. Apical portion of second valvula. 49. Second valvifer and gonoplac, lateral view. Scale bars in mm.