Catostola sagta ( Vieira, Ayala-Landa & Rafael, 2017 )

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 : 51-53

Catostola sagta ( Vieira, Ayala-Landa & Rafael, 2017) comb. nov.

( Figs 32–37, 45)

Ctenodontina sagta Vieira, Ayala-Landa & Rafael, 2017: 280 , figs. 1, 2, 10–23; Sánchez & Camargo, 2021: 274, 275, 278, fig. 7 (comments, key).

Ctenodontina “ sp.” ; Artigas & Papavero, 1995: 47, fig. 28 ( Lecania -group catalogue); Papavero, 2009: 30 (catalogue).

Diagnosis. Face yellowish white pruinose; mystacal macrosetae white with a few black macrosetae dorsally ( Fig. 32C–D); thorax ochre brown pruinose with black paramedian stripes ( Fig. 32B); fore and mid femur dark brown to black anterodorsally and yellow to reddish posteroventrally; hind femur black with a slightly pronounced preapical swelling ( Fig. 37); S8 mid-posterior projection rounded apically ( Fig. 34D); epandrium ending in a finger-like projection and dorsally with a gentle indentation at mid-length ( Fig. 34E); subepandrial sclerite short with apex rounded and ventrally with a pair of rounded projections densely covered with thin setae ( Fig. 35H–I).

Redescription. Holotype male ( Figs 32, 33A–D). Head ( Fig. 32C–D): eyes black; face yellowish white pruinose; mystacal macrosetae white, except for a group of dark brown to black macrosetae mid-dorsally ( Fig. 32C– D); subvibrissal macrosetae and setae white; gena yellowish white pruinose; palpus black with white macrosetae and setae; proboscis black, labial setae brownish, proboscial setae white with two brown setae anteriorly; antennal socket black, yellowish white pruinose; frons golden brownish pruinose; orbital setae dark brown to black; ocellar tubercle black, golden brownish pruinose with 5 proclinate, dark brown to black setae; vertex golden brown pruinose; occiput white pruinose; 14–15 black postocular macrosetae, other dorsal occipital setae whitish with a few dark brown setae mixed dorsally; lateral occipital and lower occipital setae white, slightly branched. Antenna: scape and pedicel black, slightly reddish apically, black setose, both 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 subapically ending in a black tip ( Fig. 33A–B).

Thorax ( Fig. 32A–B): ochre brown pruinose; antepronotum and postpronotum brown pruinose laterally; scutum with a pair of dark brown almost black pruinose paramedian stripes rounded anteriorly, laterally and fading after postsutural spot; pre and postsutural spots and prescutellar spots dark brown almost black pruinose; median stripe brown pruinose; postalar wall and scutellum marginally greyish brown pruinose ( Fig. 33D); pleura ochre brown pruinose, except anatergite greyish brown pruinose. 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; scutellum with short sparse black discal scutellar setae ( Fig. 33D); anepisternum with, thin yellowish and 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. 33C): translucent; veins reddish brown, becoming yellowish at base; R 4 slightly rounded 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; cells m 3 and cua closed before wing margin. Halteres: pale yellow.

Legs ( Fig. 32A): coxae and trochanters ochre brown pruinose; fore and mid femur dark brown to black anterodorsally and yellow to reddish posteroventrally; hind femur black, ventrally slightly dark reddish proximally and with a slightly pronounced preapical swelling; tibiae yellow, for and mid tibiae with a dark brown spot anteroventrally and hind tibia with apical half dark brown; fore and mid tarsi yellow to reddish, hind tarsus dark brown; Chaetotaxy: coxae with white macrosetae and setae; hind coxa with yellowish macrosetae; hind trochanter with 1 anterior and 3 posterior brown macrosetae; fore femur with 8–10 brown ventral macrosetae; mid femur with 5–6 ventral (reddish brown), 6 anteroventral (proximal reddish brown), 3 anterior, 1 posterodorsal preapical and 2 posterior (reddish) black macrosetae; hind femur with 2 anteroventral preapical, 1 anterior (proximal), 1 pair dorsal preapical black macrosetae, ventral swelling with 11–12 short stout dark reddish setae; fore and mid femora black setose, yellowish posterodorsally, hind femur with yellowish setae anterodorsally and reddish and black setae posteroventrally; tibiae with black macrosetae and setae anterodorsally and yellowish setae posteroventrally; tarsi with black macrosetae and setae; brush setae golden brownish; pulvilli pale yellow, reddish at base and empodium reddish; claws black, reddish basally.

Abdomen ( Fig. 32A–B): black; T1–5 dark brown pruinose mid-dorsally; T4–5 golden brown pruinose subdorsally; tergites grey pruinose laterally; T6–7 white pruinose; T1 with 2–3 yellowish marginal lateral macrosetae and a tuft of long marginal lateral setae; T2 and T3 with 6 yellowish marginal lateral macrosetae; T4 with 2– 3 yellowish marginal lateral macrosetae; T5 without macrosetae; T6 and T7 only with long thin white setae at posterior and lateral margins; tergites with sparse, short, appressed, dorsal black setae becoming whitish on grey pruinose areas and laterally; T6 with long, very thin, tuft of white setae laterally and at posterior corners; sternites grey pruinose with sparse, long, thin white setae; S6 with long, very thin, tuft of white setae at posterior corners; S7 with a few black setae posteriorly.

Terminalia ( Figs 33E–G, 34–35): shining black, except cercus, posterior half of gonocoxite and gonostylus dark reddish; cercus and subepandrial sclerite golden reddish, yellow setose ( Fig. 33E–G); T8 with white setae anteriorly and black setae at posterior margin and laterally (longer and stouter at posterior corners) ( Figs 33E–F, 34F); S8 black setose, setae longer at apex of mid-posterior projection; laterally and internally with golden pale yellow to brown setae (internal setae branched), S8 mid-posterior projection rounded apically ( Figs 33G, 34D); epandrium with a fringe of long and stout black setae at anterior dorsal margin with a tuft of 6–7 black macrosetae anteroventrally with some short reddish yellow setae posteriorly at dorsal and ventral margins ( Fig. 33E–F); epandrium ending in a finger-like projection dorsally with a gentle indentation dorsally at mid-length ( Figs 33E, 34E); hypandrium with posterior margin slightly concave ( Fig. 34G); gonocoxite tapering towards the end and curved upwards with rounded apex and at tip with a small rod-like projection ( Fig. 35A, D–E); gonocoxite with apex slightly directed outwards apically ( Fig. 35B–C); gonostylus constricted sub-apically wit apex rounded and a few setae on dorsally distally ( Fig. 35F); ejaculatory apodeme fan-shaped directed posteriorly; phallus with prongs thin and long ( Fig. 35A, G); cercus short, rounded distally; subepandrial sclerite short with apex rounded and ventrally with a pair of rounded projections densely covered with thin setae ( Fig. 35H–I).

Female ( Fig. 36). Similar to male, except T7 shining dark reddish black with black marginal lateral macrosetae and terminalia shining black; T8 with sparse, thin black setae dorsally, golden brown setae laterally; T9+10 and cercus with dense golden yellow setae ( Fig. 36A–B); S8 covered with dense golden brown setae; keel of genital opening with dark brown macrosetae ( Fig. 36C); hypoproct with dark reddish brown macrosetae and thin golden yellow setae ( Fig. 36A–F); spermathecae elliptic ( Fig. 36G), reaching abdominal segment 6; spermathecal pump about 4 times smaller than length of spermathecal duct, slightly turgid ( Fig. 36G–I); spermathecal ducts ending separately at genital fork ( Fig. 36G–H); apodeme of genital fork connected laterally with lateral sclerites ( Fig. 36G–H), slightly enlarged at mid-length ( Fig. 36G–H); lateral sclerites connected with T9+10; apodeme of genital fork without a mid-dorsal ridge ( Fig. 36I).

Variation. dorsal half of mystax with black setae; ocellar tubercle with a single short seta; palpus with yellowish and brownish setae; only 1 supra alar macrosetae; wings yellowish translucent; veins dark brown.

Holotype condition ( Figs 32, 33A–D). Right wing removed and mounted between coverslips and abdomen cut on T5 and removed; terminalia dissected and placed in microvial with glycerine pinned along with the specimen.

Taxonomic discussion. This species is very similar to Catostola carrerai comb. rev., and Catostola maya comb. rev., and can be differentiated from the first by the apex of the epandrial projection pointed distally ( Fig. 34E) and the apex of the gonocoxite with a small rod-like projection at the tip ( Fig. 35D–E) and from the second species by the less conspicuous femoral swelling on hind femora ( Fig. 37) and by the more smooth indentation on epandrium dorsally at mid-length ( Fig. 34E) and the apex of gonocoxite not rounded and spatulate ( Fig. 35E).

Distribution ( Fig. 45). Argentina ( Jujuy, Salta and Tucumán).

Material examined. Holotype. ARG [ ENTINA]— Salta, Tartagal [ 22°30′00″S 63°50′00″W], Fritz col., xi.[19]71 / Holotype Ctenodontina sagta Vieira, Ayala-Landa & Rafael, 2017 ( Fig. 32A [insert]) (♁ INPA) .

Paratype. ARG [ ENTINA]— Salta, Pocitos [Salvador Mazza] [ 22°03′54″S, 63°41′18″W], Fritz col. , i.[19]71 / Paratype Ctenodontina sagta Vieira,Ayala-Landa & Rafael, 2017 ( 1♀ INPA) . Additional material. ARGENTINA, Salta, Vespucio [ 22°35′09″S 63°51′26″W], El Aguay, 4.xii.47, Coll. Duret / Muséum Paris Coll. Duret 788/93 (1♁ MNHN); R. Argentina , Jujuy, Calilegua [ 23°46′22″S 64°46′11″W], 13.ii.1950, Willink + Monros (3♁ & 2♀ MZUSP); S.P. Colalao , Tucumán ( R.A.) ii.[1]951 Coll. P. Arnau (2♁ MZUSP); S.[an] Pedro de Colalao, Dto. [Departamento] Trancas-Tucumán , ii.[19]51, Arnau ( 1♀ MZUSP); Argentina : Jujuy, 575 m, Rt. 83, near entrance, Parque Nacional Calilegua [ 23°38′20″S 64°34′17″W] along Rio San Lorenzo , March 31–April 3, 1992, P. DeVries, O. Di Iorio, E. Quinter & D. Yeates (1♁ AMNH); Argentina: Jujuy, Rt. 1, 0–6 km SE Arroyo Agua Caliente [ 23°42′53″S 64°32′44″W], April 2, 1992, P. DeVries, O. Di Iorio, E. Quinter & D. Yeates ( 1♀ AMNH); [ Libertador General San Martín] Ledesma-Jujuy [ 23°49′59″S 64°46′59″W], 28-i-[1]958, Torres-Ferreyra col. (3♁ & 2♀ MLP); Argentina, Cololao[Colalao], Prov.[incia] Tucuman, Dirings ( 2♀ MZUSP); S.[an] Pedro [de] Colalao [ 26°14′00″S 65°29′00″W], i.1934 (1♁ MZUSP); S.[an] P.[edro] [de] Colalao , Tucumán ( R.[epublica] A.[rgentina]) i.1948 Coll. Arnau (1♁ & 2♀ MZUSP); Sama data, i.[19]49 ( 2♀ MZUSP); Sama data, ii.[19]49 Arnau ( 6♀ MZUSP); Monte Bello [ 27°22′36″S 65°44′58″W] , Tucumán, i.1943 O.P. leg. / M.Bello Tuc. i.43 leg. O.P. / Catostola sp. ♀ ( 1♀ MZUSP); Tucuman-R.[epublica]A.[rgentina] S. Ramon Garcia col. xi.[19]47 (1♁ MZUSP) .