Tabanus macrocerus, Carmo & Henriques, 2019

Carmo, Daniel D. D. & Henriques, Augusto L., 2019, Taxonomy of Tabanus trivittatus species-group (Diptera: Tabanidae), with description of five new species, Zootaxa 4554 (1), pp. 63-100 : 77-78

Tabanus macrocerus sp. n. Henriques & Carmo

( Figures 13 A–D, 36)

Diagnosis. A brownish species with postpedicel long, about two times the style length. Notopleuron integument paler than adjacent scutum. All coxae, mid and hind femora yellowish. Abdominal median dorsal stripe a series of yellow connected triangles, sometimes apparently even. Dorsolateral stripes a series of disconnected dashes on tergites 1-4, sometimes barely visible on tergite 5. Abdomen ventrally banded and without a median black stripe, if present, inconspicuous and not reaching the sternite margin.

Holotype female. Length 9.2 mm, wing 7.9 mm. Eyes bare. Frons pruinescent yellow, divergent above, F.I. 7.5, D.I. 1.96. Callus brown, higher than wide. Median callus black surrounded by dark pruinescence and hairs. Subcallus inflated, dark brown, paler in middle. Clypeus and gena pale gray with white hairs, except for brownish pruinescence and hairs on upper gena near antennal base. First antennal segment pale brown, dark pruinescent above, second and third segments orange, pale pruinescent, the style only slightly darker. Palpus with yellowish integument, gray pruinescence and black hairs, white hairs on basal half, mainly on anterior and posterior margins. Proboscis black, dark gray pruinescent.

Scutum and scutellum grayish brown pruinescent, recumbent golden hairs and somewhat erect black hairs mixed, integument black, except supra-alar area brown. Notopleuron paler, brown with golden hairs on upper half and black on bottom half. Pleuron with black integument, largely yellowish pruinescent and white hairs, except upper surface of katepisternum with yellowish integument and anepisternum largely with yellowish hairs. All coxae with integument yellowish and white hairs. Fore femur blackish with black hairs. Fore tibia heavy bicolored, the basal 2/3 white with white hairs, the remainder blackish with black hairs. Fore tarsus blackish with black hairs. Mid and hind femora yellowish with white hairs, mid femur with black hairs on anterior border. Mid tibia yellowish with white hairs, black hairs at apex. Hind tibia yellowish with white hairs, black hairs at posterior border and apex. Mid and hind tarsi brown with black hairs. Wing lightly infuscated on r 1 and r 2+3 cells with brown veins, stigma yellowish.

Abdomen brown, darkening to the apex. Median stripe series of continuous yellowish triangles of pruinescence and hairs on tergites 1–6. Dorsolateral stripesseries of disconnected yellowish pruinescent dashes on tergites 1–4, barely visible on tergite 5. On second tergite, the dash is largest and prominent. Sides of tergites paler and white haired. Sternites pale brown largely white hairs, but black hairs on anterior margin of sternites 3–5, more abundant on sternite 6 and wholly on sternite 7. Anterior border of sternites 2–6 whitish pruinescent.

Male. Unknown.

Comments. See under T. mackerrasi sp. n.

Type material. All collected by J. Rafael & J. Vidal. Holotype female: BRASIL, Pará, Novo Repartimento, Vicinal 45, 04°21 ′ 51 ″ S, 50°01 ′ 49 ″ W, 27.xi.2001, biting in horse ( INPA); paratypes: same data of the holotype (♀ INPA, 2 ♀ FSCA, 2 ♀ MPEG, 2 ♀ CEUFT); idem, 29.xi.2001 (♀ MZUSP), Novo Repartimento, Vicinal 0 8, 04°26′42″S 49°54′25″W, 28.xi.2001, Tucuruí , Faz. do Senador , 03°59 ′ 48 ″ S, 49°45 ′ 0 3 ″ W, 30.xi.2001, biting in horse (2 ♀ INPA); Jacundá , Porto Novo , 30.xi.2001, biting in horse (♀ INPA), Maranhão, São Pedro da Água Branca , 04°59 ′ 0 5 ″ S, 48°08 ′ 0 3 ″ W, 07.xii.2001, malaise trap (♀ CZMA).

Etymology. From Greek, makros (large) + keros (horn, relative to antenna).

Figures

FIGURE 13. Tabanus macrocerus sp. n. Holotype female. A. Dorsal habitus. B. Lateral habitus. C. Head, anterior view. D. Head, lateral view. Scale bars. A, B. 5 mm. C, D. 1 mm.