Pipunculus chiminiguagua, Ramos-Pastrana & Marques & Rafael, 2023

Ramos-Pastrana, Yardany, Marques, Dayse Willkenia A. & Rafael, José Albertino, 2023, Pipunculus Latreille, 1802 (Diptera: Pipunculidae) of Colombia, with description of three new species and an updated key to males of the Neotropical species, Zootaxa 5389 (4), pp. 459-472 : 463-465

Pipunculus chiminiguagua sp. nov.

Figs 14–26 , 40

Type material. (4 ♂). HOLOTYPE. Male: COLOMBIA, Boyacá, SFF [Santuario de Fauna y Flora] Iguaque, Cab. [Cabaña] Chaina , 05º25’N / 73º27’W, 2600 m [eters], 14.II–05.III.2001, P. Reina leg., Malaise, M 1359 (1 ♂, IAvH) (photographed specimen) . PARATYPES. idem (1 ♂, IAvH) ; idem 01–16.XII.2001, P. Roberto leg., M2682 (1 ♂, INPA) ; idem Qda. [Quebrada] Los Mudos , 05º44’N / 73º26’W, 2840 m [eters], 27.II–17.III.2003, P. Reina leg., Malaise, M 3563 (1 ♂, LEUA) . Holotype with left wing mounted on a microslide with Canada balsam. Left antenna and terminalia placed in a microvial with glycerin, both pinned along the specimen.

Diagnosis. Male. Antenna brown; postpedicel with acuminate apex. Wing with anal lobe narrowed basally. Coxae opaque dark brown. Fore and mid tibiae with distinct apical spines; hind tibia without an acute process posteroapically and outstanding setae anteromedially. Abdomen dark brown, gray-brown pruinose, with many conspicuous setae scattered dorsally and laterally equal in length. Syntergosternite 8 with membranous area apically. Surstyli subsymmetrical, with inner margins slightly straight, outer margin sinuous, and apices rounded downwards directed. Apex of phallic guide with rounded and translucent lobe ventrally. Ejaculatory apodeme fan-shaped. Phallus with ejaculatory ducts not coiled, completely separated.

Description. MALE (holotype). Body length 4.2. mm. Head ( Figs 14–15 ). Eyes contiguous for 18 facets. F, EM, V (mm) = 0.3, 0.4, 0.1. Frontal triangle gray-brown pruinose, with conspicuous dark brown callus. Occiput brown, brown pruinose dorsally and upper half laterally, gray pruinose in lower half laterally and ventrally. Antenna ( Fig. 16 ) brown; scape with one seta dorsally; pedicel with three setae dorsally and three ventrally; postpedicel with acuminate apex. LPP/WPP = 2.5. Thorax ( Figs 14–15, 17 ). Postpronotal lobe brown, gray-brown pruinose. Scutum dark brown, gray-brown pruinose, with dorsocentral setae, long and brown setae covering basal third. Notopleuron brown, gray pruinose. Scutellum concolorous with scutum. Mesopleuron concolorous with notopleuron. Mediotergite concolorous with mesopleuron. Wing ( Fig. 18 ). Length 6 mm. LW/MWW = 3.6; LTC/LFC = 0.3. Membrane brown infuscate; anal lobe narrowed basally. Halter dark brown. Legs ( Figs 14–15 ). Coxae opaque dark brown, with apices yellowish brown; fore and hind coxae gray pruinose; mid coxa gray-brown pruinose; trochanters yellowish brown; femora shiny dark brown to black, with basal third and apices yellowish brown, ventral ctenidia and a row of long and fine yellow setae posterolaterally; tibiae yellowish brown; fore and mid tibiae with distinct apical spines; fore and hind tibiae with a patch of short and fine setae yellow, giving fluffy appearance in distal two thirds posteriorly; hind tibia without an acute process posteroapically and outstanding setae anteromedially; tarsomeres 1–3 yellowish brown; tarsomeres 4–5 dark brown; pulvilli yellowish brown. Abdomen ( Figs 14–15, 19 ). Ground color dark brown, gray-brown pruinose, with many conspicuous setae scattered dorsally and laterally equal in length; tergite 1 completely covered by gray-brown pruinosity; tergites 2–4 shiny dark brown dorsally, with an I-shaped brown pruinose spot centrally; tergites and sternites 6 and 7 as in Fig. 20 . Syntergosternite 8 brown, gray-brown pruinose, clearly shorter than tergite 5, with membranous area apically ( Fig. 21 ). Terminalia ( Figs 20–26 ). Epandrium and surstyli dark brown ( Fig. 21 ). Surstyli ( Figs 21–23 ) subsymmetrical, slightly equal to epandrium length, with short setae in inner and outer margins. Both surstyli thickened basally and medially, thin apically, with inner margins slightly straight and outer margin sinuous, apices rounded downwards directed ( Fig. 21 ); both surstyli with upper and lower margin sinuous and apices rounded downwards directed when seen in lateral view ( Figs 22–23 ). Gonopods subsymmetrical, left gonopod longer than right ( Fig. 24 ). Apex of phallic guide stout, with tip hook-shaped and rounded and translucent lobe ventrally ( Fig. 25 ). Ejaculatory apodeme fan-shaped ( Fig. 26 ). Phallus trifid, not coiled, ejaculatory ducts completely separated ( Fig. 25 ).

FEMALE. Unknown.

Geographical distribution. Colombia (Boyacá) ( Fig. 40 ).

Etymology. The specific epithet ‘chiminiguagua’ is derived from the indigenous language “Chibcha”, of the indigenous people that inhabited the type locality, the meaning of ‘Chiminiguagua’ is: “supreme god, creator”, very significant for their culture. The name is to be treated as a noun apposition.

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

Taxonomic notes. Based on males, Pipunculus chiminiguagua sp. nov. runs to P. ferepauculus Hardy, 1965 in couplet 24 of the key presented by Skevington & Marshall (1998). It differs from P. ferepauculus by having the postpedicel with acuminate apex (versus postpedicel with obtuse apex); frontal triangle gray-brown pruinose (versus frontal triangle black, not pruinose); occiput brown pruinose dorsally and upper half laterally, gray pruinose in lower half laterally and ventrally (versus occiput silver-grey pruinose ventrally and laterally, not pruinose dorsally); fore and mid tibiae with distinct apical spines (versus all tibiae without distinct apical spines); surstyli subsymmetrical ( Fig. 21 ) (versus surstyli asymmetrical [see figure 4, presented by Rafael (1991)]; apex of phallic guide with rounded and translucent lobe ventrally and without lobe apically ( Fig. 25 ) (versus apex of phallic guide with triangular lobe ventrally and long, stout and rounded lobe apically [see figure 5, presented by Rafael (1991)].

Figures

FIGURE 40. Geographical records of Pipunculus species in Colombia. P. caeruleus sp. nov., P. chiminiguagua sp. nov. and P. planus sp. nov.

FIGURES 14−26. Pipunculus chiminiguagua sp. nov. (IAvH-M1359) Holotype male. 14, Habitus, left lateral view; 15, Habitus, dorsal view; 16, Antenna; 17, Thorax, dorsal view; 18, Wing; 19, Abdomen, dorsal view; 20, Tergites and sternites 6 and 7, ventral view; 21, Terminalia, dorsal view; 22, Left surstylus, lateral view; 23, Right surstylus, lateral view; 24, Hypandrium and gonopods, ventral view, 25, Phallic guide and phallus, left lateral view (the arrow indicates a translucent distinct lobe); 26, Ejaculatory apodeme.