Catostola baleta, comb. nov.
Creators: name: Camargo, Alexssandro
name: Vieira, Rodrigo
name: Rafael, José Albertino
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Asilidae
Catostola
Catostola baleta

description: Catostola baleta (Walker, 1849) comb. nov.
(Figs 9–13, 44)
Asilus baletus Walker, 1849: 427; Walker, 1855: 699, 704 (species list); Williston, 1891: 90 (catalogue); Kertész, 1909: 251 (catalogue); Hull, 1962 (2): 545 (synopsis of world fauna); Martin & Papavero, 1970: 88 (catalogue).
Lecania baleta; Artigas & Papavero, 1995: 37 (combination); Papavero, 2009: 31 (catalogue).
Ctenodontina baleta; Vieira, Ayala-Landa & Rafael, 2017: 285, figs. 1, 6, 24–36, 34–47 (combination); Sánchez & Camargo, 2021: 278 (key).
Pachychoeta caracasae Martin, 1975: 85; Vieira, Ayala-Landa & Rafael, 2017: 285 (synonym).
Lecania? caracasae; Artigas & Papavero, 1995: 37 (combination and (?) junior synonym); Papavero, 2009: 31 (catalogue).
Pachychoeta inca Martin, 1975: 86; Vieira, Ayala-Landa & Rafael, 2017: 285 (synonym).
Lecania inca; Artigas & Papavero, 1995: 38 (combination); Papavero, 2009 (catalogue).
Diagnosis. Face yellowish pruinose; mystacal macrosetae yellowish white with seven dark brown macrosetae mid-dorsally (Fig. 9C–D); thorax ochre brown pruinose with dark brown to black paramedian stripes (Fig. 9B); wings yellowish translucent (Fig. 10C); legs mostly yellow, except mid femur apically and hind femur with apical third black and an anterodorsal black stripe fading proximally (Fig. 9A–B); abdomen dark brown pruinose with lateral and posterior corners greyish brown pruinose (Fig. 9A–B); terminalia shining black (Fig. 10E–G); epandrium slowly narrowing towards tip with a strong narrowing sub-apically forming a finger-like projection with a pointed tip (Figs 10E, 11E); S8 trapezoidal on anterior half with a rectangular mid-posterior projection ending beyond apex of terminalia (Figs 10E, G, 11B–D).
Redescription. Holotype male (Figs 9–10). Head (Fig. 9C–D): eyes black; face yellowish pruinose; mystacal macrosetae yellowish white with seven dark brown macrosetae mid-dorsally (Fig. 9C–D); subvibrissal macrosetae and setae yellowish white; gena yellowish pruinose; palpus dark brown almost black with yellowish white macrosetae apically, other setae dark brown, except for a few whitish setae ventrally at base; proboscis black, labial setae yellowish, proboscial setae white; antennal socket black, yellowish pruinose; frons golden brownish pruinose; orbital setae black; ocellar tubercle black, golden brownish pruinose with 4 proclinate black setae; vertex golden brown pruinose; occiput white pruinose; 14–15 dark yellow postocular macrosetae (proximal 5 black), other dorsal occipital setae whitish with a few black setae dorsally; lateral occipital and lower occipital setae white, slightly branched. Antenna: scape and pedicel black, black setose, sparsely brownish pruinose; postpedicel black, brownish pruinose with 4–5 short yellowish setae dorsally at base; stylus dark reddish brown, first article minute, second article long and slender, slightly enlarged sub-apically ending in a dark reddish tip (Fig. 10A–B).
Thorax (Fig. 9A–B): ochre brown pruinose; antepronotum and postpronotum ochre brown pruinose laterally; scutum with a pair of dark brown almost black pruinose paramedian stripes rounded anteriorly, laterally and fading after postsutural spots; pre and postsutural spots and prescutellar spots dark brown almost black pruinose; median stripe brown pruinose; postalar wall and scutellum greyish brown pruinose (Fig. 10D); pleura ochre brown pruinose mixed with small spots of greyish pruinosity. Chaetotaxy: antepronotal macrosetae black and setae yellowish; 2 notopleural; 2 supra alar; 1 postalar and 4 pairs of dorsocentral postsutural black macrosetae; scutum with short black acrostichal setae (except on paramedian stripes, asetose); scutellum with short sparse black discal scutellar setae with a few yellowish setae mixed (Fig. 10D); anepisternum with thin black setae dorsally and white posteriorly; katatergite with yellowish macrosetae and white setae; remainder of pleura with thin and very sparse white setae.
Wings (Fig. 10C): yellowish translucent; veins dark brown, becoming reddish at base; R 4 slightly rounded at 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 mm); cells m 3 and cua closed before wing margin. Halteres: dark yellow, knob slightly lighter.
Legs (Fig. 9A–B): coxae and trochanters ochre brown pruinose, coxae with posterior area greyish pruinose; femora yellow, hind femur slightly darker, mid femur with a dark brown to black anterodorsal spot apically, hind femur with apical third black and an anterodorsal black stripe fading proximally; tibiae yellow, fore and mid tibiae with a brown spot anteroventrally at apex and hind tibia with apical third and ventrally dark brown to black; fore and mid tarsi dark yellowish brown with first tarsomeres dark yellow and apex of last tarsomeres black, hind tarsus dark brown to black. Chaetotaxy: coxae with white macrosetae and setae, hind coxa with yellowish macrosetae; hind trochanter with 1 anterior and 3 posterior yellow macrosetae; fore femur with 10–11 ventral yellow macrosetae; mid femur with 6–7 ventral (yellow), 6 anteroventral (proximal one yellow), 3 anterior, 1 posterodorsal preapical and 2 posterior (yellow) black macrosetae; hind femur with 5–6 ventral (yellow), 2 anteroventral preapical, 2–3 anterodorsal (proximal one yellow), 1 pair dorsal preapical and 1 pair apical black macrosetae; femora black setose anterodorsally and yellow posteroventrally; tibiae with black macrosetae and short black setae anterodorsally and short yellowish setae posteroventrally; tarsi with black macrosetae and setae; brush setae golden reddish brown; pulvilli dark yellow, empodium reddish; claws black.
Abdomen (Fig. 9A–B): T1–6 dark brown pruinose dorsally with lateral margins and posterior corners greyish brown pruinose; T1 with 5–6 yellowish marginal lateral macrosetae and a tuft of long marginal lateral setae; T2 and T3 with 7–8 yellowish marginal lateral macrosetae; T4–T7 with 5–6 yellowish marginal lateral macrosetae; other short, sparse, appressed setae yellowish, except mid-dorsally with brown setae; sternites greyish brown pruinose with sparse, long, thin whitish setae.
Terminalia (Figs 10E–G, 11, 12): shining black, except cercus, dark reddish to almost black; terminalia black setose, except cercus, subepandrial sclerite, apex of epandrium, apex of gonostylus, lateral and posterior margins of S8 with golden reddish brown and yellow setae; T8 with 7–8 black marginal lateral macrosetae (Figs 10F, 11F); epandrium with 2–3 long and stout black macrosetae at mid-anterior ventral margin (Figs 10E–G, 11E); epandrium slowly narrowing towards tip with a strong narrowing sub-apically forming a finger-like projection with a pointed tip (Figs 10E, 11E); S8 trapezoidal on anterior half with a rectangular mid-posterior projection ending beyond apex of terminalia (Figs 10E, G, 11B–C); hypandrium with posterior margin concave (Fig. 11G); gonocoxite narrowing towards tip, curved upwards medially with a rounded apex (Fig. 12A, D–E); gonocoxite straight apically in dorsal and ventral views (Fig. 12B–C); gonocoxal apodeme wrench-like anteriorly (Fig. 12D–E); gonostylus blade-like, pointed distally (Fig. 12F); ejaculatory apodeme fan shaped, pointed posteriorly; phallus with prongs thin and long (Fig. 12A, G); cercus and subepandrial sclerite short with rounded apex (Fig. 12H–I).
Holotype condition. Right postpedicel missing (Fig. 9B–C).
Female (Fig. 13). Similar to male, except last abdominal segments and terminalia. T 7 and terminalia shining black, T 8 dark reddish at posterior margin; T 7 and T 8 black setose; T 9+10 and cercus yellowish setose; S8 and hypoproct reddish yellow setose (Fig. 13A–C); opening of genital fork on the S8 forming a ventral pronounced keel (like a boat rudder) (Fig. 13D); opening of genital fork and hypoproct with dark reddish spines (Fig. 13A–F); spermathecae rounded (Fig. 13G), reaching abdominal segment 6; spermathecal pump about 3 times smaller than length of spermathecal duct, slightly turgid (Fig. 13G); spermathecal ducts ending separately at genital fork (Fig. 13G–H); apodeme of genital fork connected laterally with lateral sclerites (Fig. 13G–I); lateral sclerites connected with T 9+10; apodeme of genital fork without a mid-dorsal ridge (Fig. 13G–I).
Variation. Hind femur entirely black, except ventral basal half dark reddish; hind femur yellow at base and ventrally, slowly becoming black towards apex;
Taxonomic discussion. This species can be differentiated from other Catostola species by the absence of femoral swelling with short, stout macrosetae on hind femora and by the colour of legs mostly yellow (Fig. 9A). The most similar species are Catostola martini (Fisher, 1992) comb. nov., Catostola indecisa sp. nov., and Catostola complicata (James, 1953) comb. nov. It can be distinguished from the two first by the yellow colour of the hind femur with only the apex and an anterior band dark brown to black fading proximally (Fig. 9A) and from the last one by the shape of the epandrial finger-like projection that becomes constricted only sub-apically (Fig. 11E) and the gonocoxite apex that also only becomes constricted sub-apically (Fig. 12E).
Distribution (Fig. 44). Colombia (new record) (La Guajira, Magdalena, Cesar and Tolima) and Venezuela (Vargas, Aragua, Miranda, Carabobo and Guárico) (Vieira et al. 2017).
Material examined. Holotype. Type / VENEZ [UELA] / 46 75 [underside of label] / Venezuela / One of Walkers series so named eaw / TYPE Pachychaeta baleta (Wlk) N. Papavero det. / Holotype Asilus baletus Walker det. J.E. Chainey, 1985 / bar code NHMUK010632841 (Fig. 9A [insert]) (♁ NHM). Additional material. [COLOMBIA], La Guajira, 11°20′23″N 72°36′40″W] Guayra, Haeberlin / 2075 / La Guayra Haeberl. (1♁ MfN); Rio Frio [10°53′59″N 74°10′11″W], Magd.[alena], Colombia G. Salt 20.x.1927 / C. H. Curran Collection Acc. 31144 (1♁ AMNH); Brit.[ish] Mus.[eum] 1925-576 / Colombia: Lake Sapatoza region, [Cesar], Chiriguana [Chiringuaná] District. [09°21′42″N 73°36′07″W], viii–xi.1924. C. Alen. / Ommatius sp. Det. S.W. Bromley 1931 / facies like Ommatius, but no trace of feathering on the antennae (1♁ NHM); [Colombia, Tolima], Ambalema [04°46′58″N 74°45′48″W] / 7282 (1♁ MfN); [VENEZUELA], Distrito Federal [Vargas], Rio Oritapo [10°36′02″N 66°29′59″W], 200 m, col.: M. Ayala, 11.6.[19]67 (1♁ & 1♀ INPA); [Carabobo] San Esteban [10°25′30″N 68°00′48″W], Venez.[uela], xi.[19]39, Pablo Anduze / Lecania n. sp. near apicalis Brom. Det. S.W. Bromley (1♀ MZUSP); Venezuela, Maracay [10°14′49″N, 67°35′45″W], ges. P. Vogl (1♀ INPA); Vale Seco, Carabobo [10°11′35″N, 67°58′48″W], Venez.[uela] Jan.[eiro] [19]40, P.Anduze (1♁ MZUSP); [Venezuela], 7.x.1967, Edo.[Estado] Guárico, La Puerta, [San Francisco de Tiznados-Qda. Coronado 09°31′05″N 67°37′29″W], col. Adolfo Ayala [two specimens on same pin] (1♁ & 1♀ INPA); Same data [two specimens on same pin] (1♁ & 1♀ INPA); Venezuela F. Kummerow S. (1♁ & 1♀ MfN).
description: Published as part of 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, pp. 1-71 in Zootaxa 5276 on pages 18-25, DOI: 10.11646/zootaxa.5276.1.1, http://zenodo.org/record/7907294