Teloneria bimaculata ( Edwards, 1919 ) Sepúlveda & Souza & Echeverry & Marinoni & de Carvalho, 2020

Sepúlveda, Tatiana A., Souza, Diego de S., Echeverry, Angela, Marinoni, Luciane & de Carvalho, Claudio J. B., 2020, Revalidation and taxonomic revision of Teloneria Aczél (Diptera, Neriidae), with description of two new species, European Journal of Taxonomy 717, pp. 70-89 : 75-78

Teloneria bimaculata ( Edwards, 1919) comb. nov.

Figs 1B, D , 2B , 3 C–D, 6C, E, 7K, O, 8H, K, 9

Telostylus bimaculatus Edwards, 1919: 53 .

Telostylinus ornatipennis Enderlein, 1922: 143 .

Telostylus bimaculatus – Hennig 1937: 270 (key), 279 (catalogue).

Teloneria bimaculatus – Aczél 1955: 30 (key).

Chaetonerius bimaculatus – Steyskal 1977: 9 (combination).

Telostylinus ornatipennis – Hennig 1937: 279 (synonymy). — Steyskal 1977: 10 (catalogue). — Mello & Ziegler 2012 (type material).

Diagnosis

Teloneria bimaculata and T. apicata can be differentiated from T. juceliae sp. nov. and T. ladyae sp. nov. by the general darker color and the inner vertical and outer vertical setae being of almost the same length. Teloneria bimaculata and T. juceliae sp. nov. have the head elongate and mostly yellow, except for the black frontal vitta and pale brown ventral half of the occiput in the former. Other brown-colored structures that differentiate T. bimaculata from the yellow T. juceliae sp. nov. and T. ladyae sp. nov. are the proepisternum, femora (yellow only at base), and dorsal scutum and pleuron (yellow at postpronotal lobe). Exclusive characters of T. bimaculata include four fronto-orbital setae of almost the same length and the female wing cells r1 and r2 +3 being basally infuscate.

Material examined

Holotype of Telostylus bimaculatus Edwards, 1919

INDONESIA • ♀; “ HOLOTYPE [red perimeter label] // 1916. Scolak Daras, 65. W. Sumatra, 1914. (Robinson & Kloss) // HOLOTYPE, Telostylus bimaculatus Edwards , det. J. E. Chainey, 1995 // NHMUK01241421 ”; NHMUK ( Fig. 3C ).

Lectotype of Telostylinus ornatipennis Enderlein, 1922 (here designated) INDONESIA • ♀; “Ober-Langkat, Deli, Sumatra, 1894, M. U. de S. // Type [red label] // Telostylinus ornatipennis , Type Enderlein ♀, Dr. Enderlein det. 1921 // Zool. Mus. Berlin // SYNTYPE, Telostylinus ornatipennis Enderlein, 1922 , det. Mello & Ziegler 2010 [red label]”; ZMHB ( Fig. 3D ) .

Paralectotype of Telostylinus ornatipennis Enderlein, 1922 THAILAND • 1 ♀; “Ober-Langkat, Deli, Sumatra, 1894, M.U. de S. // Type [red label] // Telostylinus ornatipennis , Type Enderlein ♀, Dr. Enderlein det. 1921 // Zool. Mus. Berlin // SYNTYPE, Telostylinus ornatipennis Enderlein, 1922 , det. Mello & Ziegler 2010 [red label]”; ZMHB .

Other material (4 ♂♂, 2 ♀♀)

MALAYSIA • 1 ♂; “ Neriidae, Gen. Spec. [hand-written] // Siam: Talum. 9 Jan. 1902 // H. O. Robinson & N. Annandale. 1916-21 ”; NHMUK 1899 • 1 ♂; “Gentig Tea Estate, Gentig Sembah, forest 2000 feet // 24–27 Dec. 1972 // W. MALASYA: Selangor, A. E. Stubbs, BMNH 1974-87 ”; NHMUK 1827 • 1 ♀; same collection data as for preceding; NHMUK 2023 .

BORNEO • 1 ♂; Sarawak, Buda Camp , Sw. Gn. Buda, 64 km S of Limbang; 4°13′ N, 114°56′ E; 10–20 Nov. 1996; S.L. Heydon and S. Fung leg.; UCDC 1824 • 1 ♂; same collection data as for preceding; UCDC 1825 • 1 ♀; same collection data as for preceding; UCDC 1826 .

Redescription

Male

MEASUREMENTS. Body length 5.3–6.3 mm. Wing length 4.5–5.9 mm and width 1.2–1.6 mm.

HEAD ( Figs 1B , 6C, E , 7O ). First flagellomere ovate, narrowing on distal half, with broad apex ( Fig. 7K ). Anterior margin of frons convex, projecting over small antennal base without surpassing anterior margin of parafacial (or at most surpassing it very discreetly). Fronto-orbital plate broad and shiny. Parafacial pale brown to yellow. Vertex blackish-brown and median occipital sclerite paler; outer vertical seta aligned with 2̄4 postocular setae of almost same length; row of 2̄4 very short and hair-like occipital setae.

THORAX ( Figs1D , 8H ). Dorsally brown or pale brown; dorsal longitudinal stripe of faint gray pruinescence; anterior notopleural seta subequal to posterior notopleural seta. Fore and mid coxae yellow, hind coxa brown. Femora brown with yellow base; fore femur without long anteroventral setae; fore tarsomeres with ventral row of short thick setae.

ABDOMEN.Dark brown,with several long setulae laterally on posterior half of syntergite1 + 2.Syntergosternite 8 with three median setae; epandrium 1.5̄2.0 times as long as syntergosternite 8, reaching anterior half of third segment ventrally; distal margin of epandrium extended laterally; surstylus narrow linear; cercus broad and spatulate; length of cercus ½ to ¾ length of epandrium and three times length of surstylus; distal margin of cercus with conspicuously long and thick setae; distiphallus partially sclerotized, with median membranous area distally bifurcated in a sclerotized spike and a membranous coiled up tube ( Fig. 2B ).

Female

Body length 4.9–5.5 mm. Fore femur without strong ventral setae; tarsomeres without thick ventral setae. Oviscape brown and shiny.

Distribution

Taiwan, Malaysia * (Pahang, Selangor, Sarawak), Indonesia (Sumatra).

Remarks

The abdomen of the holotype is lost. However, the basally infuscate wing cells r 1 and r 2+3 indicate that it is a female specimen. The cercus morphologically differentiated varies in length among specimens and presents conspicuously long distal setae. According to Van Steenis & Hippa (2012), the material labeled as ‘ Siam: Talum’ by O. Robinson and N. Annandale (9 Jan. 1902) was collected in Lubok, Tamang, Pahang, F.M.S.

Figures

Fig. 1. Head and thorax in lateral view. A, C. Teloneria apicata (Edwards, 1919) comb. nov. (UCDC 1821). B, D. Teloneria bimaculata (Edwards, 1919) comb. nov. (Telostylinus ornatipennis, lectotype, ♀, ZMHB). Abbreviations: anepst = anepisternum; gn s = genal seta; i vt s = inner vertical seta; ocp s = occipital seta; o vt s = outer vertical seta; pgn s = postgenal seta; p npl s = posterior notopleural seta; poc s = postocellar seta; pocl s = postocular seta; pprn lb = postpronotal lobe; prepst s = proepisternal seta; presut sct = presutural scutum.

Fig. 2. Male genitalia. A. Teloneria apicata (Edwards, 1919) comb. nov. B. Teloneria bimaculata (Edwards, 1919) comb. nov. C. Teloneria juceliae Sepúlveda & Souza sp. nov. D. Teloneria ladyae Sepúlveda & Souza sp. nov.

Fig. 3. Type material, habitus, lateral view. A. Telostylus apicatus Edwards, 1919, lectotype, ♀. B. Telostylinus apicalis Enderlein, 1922, lectotype, ♂. C. Telostylus bimaculatus Edwards, 1919, holotype, ♀. D. Telostylinus ornatipennis Enderlein, 1922, lectotype, ♀.

Fig. 6. Head in lateral view. A. Chaetonerius nolae Barraclough, 1993 (NHMUK 2804). B. Telostylus niger Bezzi, 1913 (NHMUK 1919). C. Teloneria bimaculata (Edwards, 1919) (NHMUK 2023). D. Chaetonerius inermis (Schiner, 1868) (NHMUK 1828). E. Teloneria bimaculata (NHMUK 2023). F. Chaetonerius inermis (NHMUK 1828).

Fig. 7. Inner margin of antenna and head in lateral view. A. Nerius czernyi Aczél, 1961. B. Antillonerius cinereus (R̂der, 1885). C. Eoneria blanchardi Aczél, 1951. D. Cerantichir enderleini Hennig, 1937. E. Glyphidops bullatus (Enderlein, 1922). F. Glyphidops durus (Cresson, 1926). G. Indonesicesa annulipes (Doleschall, 1857). H. Chaetonerius claricoxa Enderlein, 1922. I. Telostylus philippinensis Cresson, 1926.J. Teloneria apicata (Edwards, 1919) comb. nov.K. Teloneria bimaculata (Edwards, 1919) comb. nov. L. Telostylus marshalli Sepúlveda & de Carvalho, 2019 (NHMUK 1179). M. Chaetonerius claricoxa (TAUI 895). N. Teloneria apicata comb. nov. (UCDC 1821). O. Teloneria bimaculata comb. nov. (ZMHB). Abbreviations: i proc ped = inner process of pedicel; u fc = upper face.

Fig. 8. Thorax in dorsal view and wing. A. Loxozus cornutus (Walker, 1853). B. Telostylus philippinensis Cresson, 1926. C. Derocephalus angusticollis Cresson, 1926. D. Chaetonerius claricoxa Enderlein, 1922. E. Chaetonerius latifemur Enderlein, 1922. F. Eoneria blanchardi Aczél, 1951. G. Teloneria apicata (Edwards, 1919) comb. nov. H. Teloneria bimaculata (Edwards, 1919) comb. nov. I. Telostylus marshalli Sepúlvesa & de Carvalho, 2019 (NHMUK 1179). J. Teloneria apicata comb. nov. (UCDC 1821). K. Teloneria bimaculata comb. nov. (ZMHB).