Tinna schoenitzeri, Fent & Dursun, 2021

Fent, Meral & Dursun, Ahmet, 2021, A new species of Tinna (Hemiptera: Heteroptera: Reduviidae) from Nigeria, Zootaxa 5004 (1), pp. 193-199 : 193-197

Tinna schoenitzeri sp. nov.

Type material: HOLOTYPE: ♂, NIGERIA: Kankiya Province : Katsina, 23.v.1965, leg. L. Segers. PARATYPES: Kankiya Province: Katsina, Kyafau , 2.vi.1964, leg. L. Segers (1 ♀); Katsina, Fanfarauta, 3.vi.1964, leg. L. Segers (1

♀); Katsina, Machinjin , 18.vi.1964, leg. L. Segers (1 ♀) ; Katsina, Karaski , 23.vi.1964, leg. L. Segers (1 ♀) ; Katsina, Bela , 1.vii.1964 (1 ♂) ; 12.v.1965, leg. L. Segers (1 ♀); Katsina, Gadar-Mosa , 2.vii.1964 (1 ♀) ; 4.vi.1965, leg. L. Segers (1 ♂); Katsina, Fakuwa , 4.vii.1964, leg. L. Segers (1 ♀) ; Katsina, 20.xi.1964, leg. L. Segers (1 ♂) ; same but 15.iv.1965 (1 ♀); same but 6.vii.1965 (1 ♀); Katsina, Kafin-Dangi , 22.ii.1965, leg. L. Segers (1 ♂) ; same but 22.v. 1965 (1 ♀); Katsina, Jigawa, 1.iv.1965, leg. L. Segers (1 ♂) ; Katsina, Tsa , 24.iv.1965, leg. L. Segers (1 ♀) ; Katsina, Gadun-Kaya , 27.iv.1965, leg. L. Segers (1 ♂, 1 ♀) ; same but 12.vi.1965 (1 ♂); Katsina, Fanga , 20.v.1965, leg. L. Segers (1 ♂) , same but 28.v.1965 (1 ♀).

Diagnosis: Body length of macropterous male 6.7 mm, of apterous male and female 10 mm or above; of macropterous male, general color whitish yellow, lateral sides of head with indistinctly pale brownish bands, pronotum and fore femur with pale brownish pattern elements; posterior margin of head rounded in lateral and dorsal view ( Figs. 1–3 ); upper portion of anterior acetabula pointed, but not distinctly surpassing anterior border of prosternum; fore tibia and tarsus combined as long as femur; external surface of fore femur with several pale brownish, small circular spots, a large subapical light brownish pattern and distally with a brownish spot ( Figs. 8, 9 ); pygophore Ushaped, basally widened, lateral sides in the distal half slightly concave; a carina ventrally extending from the apex to the middle gradually narrowing; posterior process of pygophore, with two subparallel teeth, broad at the base, tapering towards the apex, base narrower than the distance separating the apex from the teeth ( Figs. 4, 5 ); Parameres medially curved, widened towards apex, with medium-sized bristles, apex distinctly tapered ( Fig. 6 ); apterous male and female with lateral surface of thorax and head testaceous or whitish yellow with rather pale ochraceous pattern elements ( Figs. 7, 8, 11 ).

Description: Macropterous male.

Colour: Body dorsally light brownish yellow. Head light yellow, laterally with pale brownish band, anterior part with V-shaped light brownish lines in dorsal view ( Fig. 1 ). First and second segments of antenna yellow, remaining segments brownish. Pronotum brownish yellow, lateral sides with pale brownish pattern elements ( Figs. 8, 11 ). Abdomen brownish yellow. Rostrum light yellow, first segment proximally, second and third segments distally brownish. Legs whitish yellow, fore femur with several pale brownish, small circular spots, a large subapical light brownish pattern and distally with brownish spot on posterior (outer) surface, proximally and distally with light brownish pattern on anterior (inner) surface; fore tibia pale yellow, distally darkened; tarsi light yellow ( Figs. 8, 9 ); mid and hind femora distally and mid and hind tibiae proximally with a white annulus. Wings light yellow, with brownish spots, veins light brown.

Sructure: Body matt, glabrous except antenna and legs, body surface with very thin punctures resembling honeycomb. Antennal segments I and II with long and fine pilosity, longest hairs about three times as long as diameter of segment I; hairs on segment II gradually shortening towards apex; apical portion of segment II, entire segments III and IV with short, semierect pilosity; legs glabrous except tibia and metatarsus; fore tibia with short hairs on dorsal surface, with spine-like, stiff, semierect hairs on ventral surface, with comb-like, erect hairs apically; mid and hind legs with very short and sparse, adpressed hairs.

Head: Head ( Figs. 1–3 , 7, 11 ) elongate oval; relatively short, about 1.09 times as long as width across eyes; divided into two parts by a deep transverse dorsal sulcus before eyes; preocular part subrectangular, postocular part globular in dorsal view, both parts, especially posterior lobe distinctly convex in lateral view; preocular and postocular parts subequal in lenght. Eyes large, attaining level of ventral outline of head in lateral view; distance between eyes dorsally more than twice of width of eye; width across eyes about 1.2 times as wide as interocular distance. Ventral surface of head with three pairs of spiniferous tubercles, a pair at level of anterior, a pair at level of posterior margin of eye, and a pair at base of rostrum). Antenniferous tubercle located close to apex of head; antenna about twice as long as body length; segment I longest, about 1.06 as long as segment II, 9.4 times as long as segment III and 6.2 times as long as segment IV; segment III shortest, about 0.65 times as long as segment IV. Rostrum reaching fore coxa, visible segment II twice as long as visible segment I.

Thorax: Pronotum ( Figs. 3 , 8, 11 ) about 1.1 times as long as head, about 1.78 times as long as its greatest width; anterior lobe gradually narrowed posteriad, posterior lobe poorly limited, provided with a transverse oval protuberance; upper portion of anterior acetabula pointed, not distinctly surpassing anterior border of prosternum. Mesonotum about 1.5 times as long as its width, about 1.4 times as long as pronotum, with a median longitudinal furrow. Scutellum 0.5 times as long as pronotum, 0.3 times as long as mesonotum. Mesonotum and scutellum with thin lateral carina.

enitzeri sp. nov., apterous male (paratype). Head and pronotum, lateral view.

Legs: Fore leg ( Figs. 8, 9 ): Coxa subcylindrical, about 6 times as long as its width; trochanter with a ventral projection much longer than width at base, pointed towards apex and bearing a relatively short apical spine; femur about 2.1 times as long as coxa and 1.36 times as long as tibia, laterally flattened in proximal part, dorsal face slightly convex, ventral face slightly concave, armed ventrally with two series of spines of different size, gradually shortening towards apex of femur; posteroventral series beginning far from proximal extremity of femur, reaches apex, consists of 7 medium-sized and 26 small spines; anteroventral series beginning near base of femur, reaches apex, consisting of 4 large, 8 medium-sized and 16 small spines. Tibia straight, lightly widened in its apical portion, armed ventrally with a single series of slender spines inserted on very short, wart-like basal processes, lenght of spines increasing towards apex; tarsus 0.4 times as long as tibia; combined length of tibia and tarsus subequal to length of femur; tarsus three-segmented, segment I about 1.1 times as long as II, 1.8 times as long as III. Segment I ventrally with a single series of slender spines, remaining segments hairless; pretarsus with simple, toothless claws. Mid and hind legs thin, mesofemur reaching apex of abdomen, metafemur rather long, surpassing apex of abdomen. Meso- and metatibiae and tarsi gracile. Claws of meso- and metatarsus simple, base lacking tooth.

Abdomen: Proximal part narrow, widening distally; about 8.4 times as long as its width.

Male genitalia: Pygophore dark brown, more strongly sclerotized than pregenital abdomen, U-shaped ( Fig. 4 ), with a slingshot-shaped posterior process terminating in two long, subparallel teeth tapering towards apex ( Fig. 5 ). Parameres medially curved, widened towards apex, with medium-sized bristles, apex relatively pointed ( Fig. 6 ).

Apterous male and female: General characters as in macropterous male. Antenna glabrous. Eye smaller ( Figs. 7, 11 ). Abdomen of apterous female relatively broader than in males.

Female genitalia: Eighth tergite black with yellow spot, ninth tergite yellow with black spot, eighth gonocoxite blackish brown. Syngonapophysis with numerous bristles ( Fig. 10 ).

Measurements of macropterous male and apterous female (in mm). Body length ♂: 6.70, ♀: 10.37; length of head ♂: 0.73 (preocular part 0.33, postocular part 0.40), ♀: 1.13 (preocular part 0.58, postocular part 0.41); di- ameter of eyes ♂: 0.19, ♀: 0.14; interocular distance ♂: 0.45, ♀: 0.36; width of head across eyes ♂: 0.67, ♀: 0.61; lengths of antennal segments I, II, III and IV ♂: 6.23, 5.84, 0.66 and 1.01; ♀: 6.38, 5.76, 0.68 and 1.20; lengths of visible labial segments I, II and III, ♂: 0.27, 0.48 and 0.37; ♀: 0.33, 0.66 and 0.37; length of pronotum ♂: 0.80, ♀: 1.15, width of pronotum ♂: 0.45, ♀: 0.61; length of mesonotum ♂: 1.12, ♀: 1.69, width of mesonotum ♂: 0.75, ♀: 0.75; length of scutellum ♂: 0.40, ♀: 0.47; length of abdomen ♂: 3.79, ♀: 5.60, width of abdomen ♂: 0.45, ♀: 0.81; length of fore coxa, ♂: 0.87, ♀: 0.98; length of fore trochanter ♂: 0.12, ♀: 0.17; length of fore femur ♂: 1.84, ♀: 2.28; length of fore tibia ♂: 1.35, ♀: 1.53; length of fore tarsus ♂: 0.54 (segment I: 0.22, segment II: 0.20, segment III: 0.12), ♀: 0.60 (segment I: 0.26, segment II: 0.22, segment III: 0.12).

Figures

FIGURES 1–6. Tinna schoenitzeri sp. nov., macropterous male (holotype). 1, Head, dorsal view; 2, same, lateral view; 3, head and thorax, dorsal view; 4, pygophore, dorsal view; 5, process of pygophore, dorsal view (SEM micrograph); 6, paramere (a, dorsal view; b, ventral view; c, SEM micrograph, frontal view).

FIGURES 7–11. FIGURES 7–10. Tinna schoenitzeri sp. nov., apterous female (paratype). 7, Head, lateral view; 8, head, thorax and fore legs, lateral view; 9, right fore leg, posterior (outer) view; 10, apex of abdomen, lateral view. 11. Tinna scho-