Cephalops lobatus, Ramos-Pastrana & Marques & Rafael, 2022

Ramos-Pastrana, Yardany, Marques, Dayse Willkenia A. & Rafael, José Albertino, 2022, Cephalops Fallén and Semicephalops De Meyer (Diptera: Pipunculidae) of Colombia, with description of five new species and an updated key to males of the Neotropical species, Zootaxa 5141 (3), pp. 201-226 : 213

Cephalops lobatus sp. nov.

Figs 62–77 , 107

Diagnosis. Male. Antenna with scape dark brown, pedicel light brown, postpedicel yellow, the latter slightly acute. Frontal triangle with inconspicuous black callus. Coxae dark brown, trochanters and femora yellow, with short setae ventrally, tibiae yellow. Abdomen brown, tergite 1 sparsely gray-brown pruinose; tergites 2–5 velvety brown anteriorly, shiny posteriorly. Surstyli subsymmetrical, both thickened basally and medially, thin at apices. Apex of phallic guide thin, bearing a small translucent lobe and row of thin setae ventrally. Ejaculatory apodeme pin-shaped, shortened and truncated distally. Phallus trifid, with ejaculatory ducts thickened, two ejaculatory ducts with submedian lateral membranous lobes when seen in ventral view.

Description. MALE (holotype). Body length 3.4 mm. Head ( Figs 62–63 ). Eyes contiguous for 22 facets. F, EM, V (mm) = 0.4, 0.6, 0.2. Frontal triangle brown pruinose, with inconspicuous black callus. Face with sides parallel to divergent towards proboscis, with the same length of frons. Postcranium dark brown, gray pruinose laterally, brown pruinose dorsally. Antenna ( Fig. 64 ) with scape dark brown with one seta dorsally, pedicel light brown with three setae dorsally and three short setae ventrally; postpedicel yellow, with acute apex. LPP/WPP = 2. Thorax ( Figs 63, 65 ). Postpronotal lobe dark brown. Scutum dark brown, brown pruinose. Notopleuron concolorous with scutum, brown pruinose. Scutellum brown, brown pruinose. Scutellum with few tiny, scattered setae and 14 inconspicuous setae along posterior margin. Mesopleuron and mediotergite dark brown, gray-brown pruinose. Wing ( Fig. 66 ). Length 8.7 mm. LW/MWW = 3.2; LTC/LFC = 1.6. Membrane slightly brown infuscated, vein r-m located slightly after basal third of upper section of cell dm, anal lobe narrow, cell r 4+5 0.3 times longer than cell dm. Halter light yellow, knob dark brown. Legs ( Fig. 62 ). Fore and mid coxae dark brown, hind coxa yellow; trochanters yellow; femora yellow, with short setae ventrally, tibiae yellow; tarsomeres 1–2 yellow, 3–5 brown; pulvilli yellow. Abdomen ( Figs 62–63, 67 ). Brown, tergite 1 sparsely gray-brown pruinose, with three yellow and long lateral setae; tergites 2–5 velvety brown anteriorly, shiny posteriorly, with inconspicuous setae; tergites and sternites 6 and 7 as in Fig. 68 . Syntergosternite 8 brown, brown pruinose, shorter than tergite 5, with a membranous area large ( Figs 67, 69 ). Terminalia ( Figs 68–74 ). Epandrium dark brown, surstyli dark brown ( Fig. 69 ). Surstyli ( Figs 69–71 ) subsymmetrical, almost equal to epandrium length, completely setose; both surstyli thickened basally and medially, thin at apices, left surstylus slightly thinner than right ( Fig. 69 ); both surstyli with tips downward directed when seen in lateral view ( Figs 70–71 ). Gonopods slightly subsymmetrical ( Fig. 72 ). Apex of phallic guide thin, bearing a small translucent lobe and row of thin setae ventrally ( Fig. 73 ). Ejaculatory apodeme pin-shaped, shortened and truncated distally ( Fig. 74 ). Phallus trifid, with ejaculatory ducts thickened, two ejaculatory ducts with submedian lateral membranous lobes when seen in ventral view ( Fig. 72–73 ). FEMALE ( Figs 75–77 ). Like male, differing only in the following aspects. Body length 3.9 mm. Eyes dichoptic. Frontal ommatidia larger than adjacent ones. Wing length 5.4 mm. LW/MWW = 3.8. LTC/LFC = 1.3. Ovipositor OL: 0.83 mm, PL: 0.45 mm, B: 0.55 mm; base brown, gray pruinose, piercer yellow, except base light brown, apex shiny, straight ( Figs 76–77 ).

Type material. HOLOTYPE. Male: COLOMBIA, Boyacá, SFF[Santuario de Fauna y Flora] Iguaque, El Níspero , 0538’N/7331’W, 2730 m [eters], 07–21.xii.2001, P. Reina leg (1 ♂ IAvH) (photographed specimen). PARATYPES. idem 13–28.x.2001, “M2476 (1 ♂, 1 ♀ LEUA) (photographed specimen); idem, 28.x.–14.xi.2001, “M2483 (1 ♀ IAvH) . Holotype with left wing mounted on microslide with Canada balsam. Left antenna and terminalia placed in a microvial with glycerin, both pinned along the specimen.

Etymology. From the Latin lobatus (= lobed), the specific epithet refers to the two ejaculatory ducts of the phallus having submedian lobes laterally.

Geographical distribution. Colombia (Boyacá) ( Fig. 107 ).

Habitat. The specimens were collected in the Santuario de Fauna y Flora Iguaque reserve, where the vegetation is composed of cloud Andean forests of the Oriental Cordillera of the Northeast region of Colombia.

Taxonomic notes. Cephalops lobatus sp. nov. runs to C. amapaensis Rafael, 1990 in the couplet 14 of the key presented by Rafael (1990). It differs from C. amapaensis in the yellowish brown postpedicel ( Fig. 64 ) [versus yellow postpedicel in C. amapaensis ( Fig. 19 )]; fore and mid coxae dark brown, hind coxa yellow (versus fore coxa yellow to brown, mid and hind coxa light brown); tergites 2–3 without shiny black spot posterolaterally ( Figs 62–63, 67 ) (versus tergites 2–3 with shiny black spot posterolaterally); apex of phallic guide with ventral margin sinuous, without rigid lobes laterally ( Fig. 73 ) [versus apex of phallic guide with ventral margin straight and two rigid lobes laterally, figure 6 presented by Rafael (1990)]; ejaculatory apodeme shortened, truncated distally ( Fig. 74 ) [versus ejaculatory apodeme funnel-shaped, figure 7 presented by Rafael (1990) and ( Fig. 29 )]; phallus trifid, with ejaculatory ducts thickened ( Fig. 73 ), two ejaculatory ducts with submedian lobes laterally when seen in ventral view ( Fig. 72 ) [versus phallus with ejaculatory duct long clearly differentiated, without submedian lobes laterally when seen in ventral view ( Figs 27–28 )].

Figures

FIGURE 107. Geographical records of Cephalops species in Colombia. Cephalops acutus sp. nov., C. amapaensis, C. gracilis sp. nov., C. klinsmanni sp. nov. and C. lobatus sp. nov.

FIGURES 62–74. Cephalops lobatus sp. nov. Male. 62, Habitus, left lateral view; 63, Habitus, dorsal view; 64, Antenna; 65, Thorax, dorsal view; 66, Wing; 67, Abdomen, dorsal view; 68, Tergites and sternites 6 and 7, ventral view; 69, Terminalia, dorsal view; 70, Left surstylus, lateral view; 71, Right surstylus, lateral view; 72, Hypandrium and gonopods, ventral view, 73, Phallic guide and phallus, left lateral view; 74, Ejaculatory apodeme.

FIGURES 75–77. Cephalops lobatus sp. nov. Female. 75, Habitus, left lateral view; 76, Abdomen, right lateral view; 77, Ovipositor, dorsal view.

FIGURES 17–29. Cephalops amapaensis Rafael, 1990. (IAvH–M945). Male. 17, Habitus, left lateral view; 18, Habitus, dorsal view; 19, Antenna; 20, Thorax, dorsal view; 21, Wing; 22, Abdomen, dorsal view; 23, Tergites and sternites 6 and 7, ventral view; 24, Terminalia, dorsal view; 25, Left surstylus, lateral view; 26, Right surstylus, lateral view; 27, Hypandrium and gonopods, ventral view, 28, Phallic guide and phallus, left lateral view; 29, Ejaculatory apodeme.