Ctenodontina pectinatipes Enderlein, 1914

Camargo, Alexssandro, Vieira, Rodrigo & Rafael, José Albertino, 2023, Taxonomic review of Ctenodontina Enderlein, 1914 with the revalidation of Catostola Hull, 1958 (Diptera: Asilidae: Asilinae) and description of a new species, Zootaxa 5276, pp. 1-71 : 11-17

publication ID	https://doi.org/ 10.11646/zootaxa.5276.1.1
publication LSID	lsid:zoobank.org:pub:92300500-BB24-45B0-8ADD-977C3220A069
DOI	https://doi.org/10.5281/zenodo.7907310
persistent identifier	https://treatment.plazi.org/id/03A4878E-EE48-3858-BEE1-FDF7F0BAFE03
treatment provided by	Plazi
scientific name	Ctenodontina pectinatipes Enderlein, 1914
status

Treatment

Ctenodontina pectinatipes Enderlein, 1914 View in CoL

( Figs 4–8 View FIGURE 4 View FIGURE 5 View FIGURE 6 View FIGURE 7 View FIGURE 8 )

Ctenodontina pectinatipes Enderlein, 1914: 260 View in CoL , 261, figs. 6, 7; Carrera & d’Andretta, 1953: 77, 78 (comments); Hull, 1962 (2): 480, figs. 2508, 2514 (synopsis of world fauna); Martin & Papavero, 1970: 71 (catalogue); Lamas, 1973: 275, 276 (key); Artigas & Papavero, 1995: 36 ( Lecania View in CoL -group catalogue); Papavero, 2009: 30 (catalogue); Vieira, 2012: 2, fig. 1 (key); Vieira, 2014: 314 (comments); Vieira, Ayala-Landa & Rafael, 2017: 290, figs. 1, 5 (key); Sánchez & Camargo, 2021: 278 (key).

Diagnosis. Face greyish pale pruinose; mystacal macrosetae and setae pale whitish with five black macrosetae dorsolaterally; frons and vertex yellowish pruinose ( Fig. 4C–D View FIGURE 4 ); postpedicel greyish pruinose; second article of stylus dark reddish brown to black slightly enlarged dorsally sub-apically ( Fig. 5A–D View FIGURE 5 ); legs yellow ( Figs 4A View FIGURE 4 , 7A– B View FIGURE 7 ), hind femur intumesced with ventral projections bearing black teeth ( Fig. 7A–E View FIGURE 7 ); hind tibia sigmoid ( Fig.7A–B, F View FIGURE 7 ); terminalia dark reddish brown to black ( Fig. 6 View FIGURE 6 ); S8 Y-shaped ( Fig. 6D, F View FIGURE 6 ).

Redescription. Paratype male ( Figs 4–7 View FIGURE 4 View FIGURE 5 View FIGURE 6 View FIGURE 7 ). Head: eyes black; face pale greyish pruinose with a central dark brown line from antennal socket until beginning of facial gibbosity; mystacal macrosetae and setae pale whitish with five black macrosetae dorsolaterally ( Fig. 4C–D View FIGURE 4 ); gena greyish pruinose; palpus reddish brown with white macrosetae and setae; proboscis black, labial setae yellowish, proboscial setae white; antennal socket yellowish pruinose; frons convergent, yellowish pruinose with a black central apruinose spot; orbital setae; ocellar tubercle black, brownish yellow pruinose with two dark brown proclinate setae; vertex deeply excavated, yellowish pruinose, greyish posteriorly with ocellar tubercle on concavity, ocellar tubercle almost not passing the frontal eye line; occiput greyish pruinose; 5–6 black postocular macrosetae (distal one pale); occipital and lower occipital setae white. Antenna ( Fig. 5A–D View FIGURE 5 ): scape and pedicel reddish brown, brownish yellow pruinose with short dark brown to black setae; postpedicel dark brown, greyish pruinose with three very short yellow setae on dorsal margin basally; first and second article of stylus dark reddish brown to black; second article slightly enlarged sub-apically ending in a thin pointed tip ( Fig. 5A, C View FIGURE 5 ).

Thorax ( Figs 4A–B View FIGURE 4 , 5F–G View FIGURE 5 ): brown; antepronotum and postpronotum greyish brown; scutum brown with a median stripe dark reddish brown with two paramedian stripes dark brown to black pruinose diminishing before scutellum; humeral spot and the stripes that follow the paramedian stripes and enter transverse suture brownish yellow pruinose; postpronotal lobe, pre and postsutural spots and postalar callus brown pruinose ( Fig. 5G View FIGURE 5 ); lateral margin of scutum above wing insertion, posterior margin of scutum and postalar wall greyish pruinose, a small portion of scutum before scutellum dark reddish black, apruinose; scutellum brownish grey pruinose on disc and greyish pruinose marginally ( Fig. 5F View FIGURE 5 ); anepisternum greyish brown pruinose on anterior and dorsal half; pleura grey pruinose. Chaetotaxy: antepronotal macrosetae and setae pale yellow; 2 notopleural; 1 supra alar; 1 postalar and 5 pairs of dorsocentral postsutural black macrosetae; scutum with short black acrostichal setae and thin pale setae on postpronotal lobe anteriorly, above wing insertion and on postalar wall anteriorly; scutellum with short sparse black discal scutellar setae ( Fig. 5F View FIGURE 5 ); anepisternum with short, thin yellowish to brown setae dorsally; katatergite with white macrosetae and setae; remainder of pleura with very sparse and thin whitish setae.

Wings ( Fig. 5E View FIGURE 5 ): translucent, apical third of wing yellowish translucent; veins dark brown; R 4 angulated in the junction with R 5; bifurcation of R 4 and R 5 beyond discal cell at a distance equivalent to the length of two crossvein r-m; crossvein r-m shortly after the middle of discal cell at a distance equivalent to the length of one crossvein m-m; cell sc with brown microtrichia, cells at apical third of wing with slightly brown microtrichia along veins; cells m 3 and cua closed before wing margin. Halteres: yellow, knob reddish brown, base of knob darker.

Legs ( Figs 4A View FIGURE 4 , 7 View FIGURE 7 ): yellow; except extreme apex of mid and hind femora and extreme base of mid and hind tibiae dark reddish (extreme tip of hind femur black), the black teeth on hind femoral projections and last 4 tarsal segments of fore and mid tarsi and hind tarsus dark yellow; coxae grey pruinose; hind femur with 5 projections ending in black teeth ( Fig. 7A–E View FIGURE 7 ); the first projection is divided in two, following three simple and last projection (with is similar to a foot in lateral view) has two teeth at base laterally and 10 teeth aggregated on top; (on right femur the third projection is atrophied and it was possible to count eight teeth on tip of last projection) hind femora intumesced from base until ventral projections narrowing after projections ( Fig. 7A–B View FIGURE 7 ); hind tibia resembling an “S”, basal third resembling a hock, mid part of hind tibia projected ventrally ( Fig. 7B, F View FIGURE 7 ). Chaetotaxy: coxae and trochanters with whitish macrosetae and setae; hind trochanter with 2 posterior yellow macrosetae; fore femur with 5–6 ventral black macrosetae (proximal one yellow); mid femur with 5–6 ventral (2 proximal yellow), 4 anteroventral, 3 anterior, 1 posterodorsal preapical black macrosetae; hind femur with 3 anterodorsal black macrosetae; short sparse setae on femora black, except ate base and posteriorly on hind femur pale yellow; tibiae and tarsi with black macrosetae and short black setae; brush setae yellow; pulvilli dark yellow; empodium dark reddish; claws black, reddish basally.

Abdomen ( Figs 4A–B View FIGURE 4 , 5H View FIGURE 5 ): brown pruinose, T1 and lateral and posterior margins of tergites grey pruinose; T1 with 3 black marginal lateral macrosetae and 10–12 pale yellow macrosetae and setae; T2–7 with whitish dorsal and marginal short thin setae, become dark brown to black on T4–7; sternites grey pruinose with very sparse thin whitish setae.

Terminalia ( Fig. 6 View FIGURE 6 ): dark reddish to black; epandrium anteriorly and on epandrial arms reddish internally ( Fig. 6A View FIGURE 6 ); T8 with dark brown to black sparse setae ( Fig. 6A View FIGURE 6 ); S8 expanded anteriorly, under S7, resembling an inverted chalice with a mid-posterior, thin, Y-shaped projection, dark reddish to black with setae of same colour, except on the arms of the Y projection with yellowish setae ( Fig. 6B, D–G View FIGURE 6 ); epandrial arms sub-apically with an internal lobulate red projection ( Fig. 6A, D, H View FIGURE 6 ), apex black more or less conic ( Fig. 6A–D, H View FIGURE 6 ), epandrium ventrally with a small black conical projection, ventrally to the red lobulate internal projection ( Fig. 6D, H View FIGURE 6 ); gonocoxite reddish anteriorly, expanded in the middle and ending in a blunt tip ( Fig. 6D–E, G–H View FIGURE 6 ); gonostylus yellowish red with papilla externally and setae of same colour; hypandrium broad anteriorly, U-shaped at mid-posterior margin with a pair of finger-like conical projections ( Fig. 6B, D–G View FIGURE 6 ); cercus rudder-like, yellow setose ( Fig. 6C View FIGURE 6 ); apex of epandrium and epandrial arms internally whitish setose, remainder of terminalia with dark brown to black setae ( Fig. 6A–H View FIGURE 6 ).

Length. Body: 22.5 mm; wing: 16 mm.

Paratype condition ( Figs 4–5 View FIGURE 4 View FIGURE 5 ). Right hind tibia missing ( Fig. 4B View FIGURE 4 ); abdomen broken dorsally on T1 anteriorly, but still attached to thorax ( Fig. 5H View FIGURE 5 ) .

Female. Unknown.

Taxonomic discussion. This species can be easily recognized by a very distinctive feature, the hind femora intumesced with five huge ventral projections bearing black teeth ( Fig. 7A–E View FIGURE 7 ). Other additional distinctive features are yellow legs ( Fig. 4A View FIGURE 4 ); hind tibia sigmoid ( Fig. 7A, F View FIGURE 7 ), and S8 with Y-shaped mid-posterior projection ( Fig. 6F View FIGURE 6 ).

Enderlein (1914) based his description on two males collected by Ernst Pehlke in the locality of “Hacienda Pehlke” in Colombia. However, during a visit to the Museum and Institute of Zoology Polish Academy of Sciences (MIZ PAS) in Poland, only the paratype could be located.According to the curator Przemysław Dawid Szymroszczyk (in litt., 2019), the holotype of this species (including other Asilidae types which belong in this collection) seem to have been lent to the Natural History Museum (NHM) in the past. Unfortunately, the loan forms are lost, and apparently, the material has not been located in the NHM.

Distribution ( Fig. 8 View FIGURE 8 ). Colombia. Departamento Caldas, Victoria. The type locality “Hacienda Pehlke” is situated near Victoria, 900 m above sea level. This famous type locality was a farm owned by Ernst Pehlke. The farm was divided among colonists and few forested areas remain ( Papavero 1973). This was corroborated in our visit to MIZ PAS in Poland where miscellaneous Asilidae specimens bearing the same collector label had been collected in nearby localities like Honda (Tolima, which borders Caldas), Rio Magdalena (Border between Tolima and Cundinamarca), and even Bogotá (Cundinamarca).

Material examined. Paratype. Columbien [ COLOMBIA, Departamento Caldas, Victoria] (Hac.[ienda] Pehlke ) [05°19′00″N, 74°54′43″W] E. Pehlke S. / Co = Typus. / Ctenodontina pectinatipes Type Enderl., ♁ Dr. Enderlein det 1913 ( Fig. 4A View FIGURE 4 [insert]) (1♁ MIZ PAS) GoogleMaps .