Catostola indecisa, Carmago & Vieira & Rafael, 2023

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 : 59-66

publication ID 10.11646/zootaxa.5276.1.1

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Catostola indecisa

sp. nov.

Catostola indecisa View in CoL sp. nov.

( Figs 38–42 View FIGURE 38 View FIGURE 39 View FIGURE 40 View FIGURE 41 View FIGURE 42 , 44 View FIGURE 44 )


Diagnosis. Face yellowish brown pruinose; mystacal macrosetae yellowish white, except by a few dorsal black macrosetae ( Fig. 38C–D View FIGURE 38 ); postpedicel dark reddish; second article of stylus black, dark reddish at base, long and slender, slightly enlarged subapically ( Fig. 39A–B View FIGURE 39 ); fore femur yellow, mid femur yellow with black apical third, hind femur black ( Fig. 38A View FIGURE 38 ); male terminalia shining black ( Fig. 39E–G View FIGURE 39 ); S8 with dark reddish long macrosetae and setae at posterior margin, lateral to mid-posterior projection and on apex of mid-posterior projection ( Fig. 39E, G View FIGURE 39 ); apical epandrial finger-like projection pointed distally; gonocoxite tapering distally and curving upwards with apical half very narrow and apex rounded ( Fig. 40E View FIGURE 40 ).

Description. Holotype male ( Figs 38–41 View FIGURE 38 View FIGURE 39 View FIGURE 40 View FIGURE 41 ). Head ( Fig. 38C–D View FIGURE 38 ): eyes black; face yellowish brown pruinose; mystacal macrosetae yellowish white, except by a few dorsal black macrosetae ( Fig. 38C–D View FIGURE 38 ); subvibrissal macrosetae and setae yellowish white; gena yellowish pruinose; palpus black with two white apical macrosetae and black setae, except at base ventrally, yellowish white setose; proboscis black, labial setae dark yellow, proboscial setae whitish; antennal socket reddish black, brownish pruinose; frons brownish pruinose; orbital setae black with 1–2 yellowish mixed; ocellar tubercle black, brown pruinose dorsally with four proclinate black setae; vertex brown pruinose; occiput yellowish brown pruinose dorsally becoming white laterally; 5–6 black postocular macrosetae (proximal ones dark yellow), other dorsal occipital setae whitish; lateral occipital and lower occipital setae white, slightly branched. Antenna: scape and pedicel black with dark reddish apex, black setose and sparsely brown pruinose; postpedicel dark reddish, sparsely brown pruinose with 4–5 short yellowish setae dorsally at base (left postpedicel with an anomalous black macrosetae dorsally); first article of stylus dark reddish, minute, second article black, dark reddish at base, long and slender, slightly enlarged subapically ending in a dark reddish tip ( Fig. 39A–B View FIGURE 39 ).

Thorax ( Fig. 38A–B View FIGURE 38 ): yellowish brown; antepronotum and postpronotum grey pruinose laterally; scutum with a pair of dark brown pruinose paramedian stripes rounded anteriorly, laterally, and fading after postsutural spots; pre and postsutural spots and prescutellar spots dark brown pruinose; median stripe brown pruinose; triangular apruinose black spot at posterior scutal margin; postalar wall and scutellum brownish grey pruinose ( Fig. 39D View FIGURE 39 ); pleura grey pruinose, except anterodorsal part of proepimeron and anepisternum brownish grey pruinose. Chaetotaxy: antepronotal macrosetae and setae yellowish; 2 notopleural; 2 supra alar; 1 postalar and 5 pairs of dorsocentral postsutural black macrosetae; scutum with short black acrostichal setae; scutellum with short sparse black discal and marginal scutellar setae ( Fig.39D View FIGURE 39 ); anepisternum with short, thin yellowish and black setae dorsally; katatergite with whitish macrosetae and setae; remainder of pleura with very sparse, thin whitish setae.

Wings ( Fig. 39C View FIGURE 39 ): yellowish translucent; veins dark brown; 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 in the middle of discal cell; cells m 3 and cua closed before wing margin. Halteres: dark reddish yellow, apex of steam and base of knob dark brown ventrally.

Legs ( Fig. 38A View FIGURE 38 ): coxae and trochanters black brownish grey pruinose; fore femur yellow (slightly dark at extreme apex), mid femur yellow with black apical third; hind femur black, slightly dark reddish anteroventrally on basal third; fore tibia yellow, only slightly reddish apically; mid tibia yellow with an anterior dark yellow stripe and black apex; hind tibia black with a yellow spot posterodorsally on basal half; tarsi black, except first tarsomere of fore tarsi dark reddish yellow. Chaetotaxy: coxae with yellowish white macrosetae and setae; hind trochanter with 3 posterior yellow macrosetae; fore femur with 11–12 ventral yellowish macrosetae; mid femur with 9–10 ventral (yellowish), 5 anteroventral, 3 anterior, 1 posterodorsal preapical and 3 posterior (all yellow) black macrosetae; hind femur with 2 anteroventral preapical, 2 anterior (proximal yellow), 1 anterodorsal preapical, 1 posterodorsal preapical black macrosetae; femora black setose anterodorsally and yellowish posteroventrally; tibiae with black macrosetae and setae, except by a few yellow setae ventrally on fore tibia; tarsi with black macrosetae and setae; brush setae golden reddish yellow; pulvilli dark yellow; empodium dark reddish; claws black, dark reddish basally.

Abdomen ( Fig. 38A View FIGURE 38 ): black, T1–7 dark brown pruinose dorsally and grey laterally and at posterior corners; T1 with 3–4 yellowish white marginal lateral macrosetae and a tuft of long yellowish white setae; T2–3 with 4–5 yellowish white lateral marginal macrosetae; T5–7 only with long white setae at lateral posterior margin; other short appressed dorsal setae black, becoming yellowish laterally; sternites greyish white pruinose; sternites sparsely white setose.

Terminalia ( Figs 39E–G View FIGURE 39 , 40–41 View FIGURE 40 View FIGURE 41 ): shining black, except apical half of gonocoxite and dorsal margin of gonostylus and anterior mid-ventral part of S8 dark reddish; phallus dark yellow; T8 black setose ( Figs 39E–F View FIGURE 39 , 40F View FIGURE 40 ); S8 black setose, mid-posterior projection rectangular with a tuft of long dark reddish black macrosetae at the apex ( Figs 39E, G View FIGURE 39 , 40D View FIGURE 40 ); cercus yellowish setose; epandrium with black setae at anterior dorsal margin and 3–4 long black macrosetae at anterior ventral margin ( Fig. 39E–G View FIGURE 39 ), epandrial apical finger-like projection with short dark yellow setae apically and pointed distally ( Figs 39E View FIGURE 39 , 40E View FIGURE 40 ); hypandrium with a shallow indentation at posterior margin ( Fig. 40G View FIGURE 40 ); gonocoxite tapering distally and curving upwards with apical half very narrow and apex rounded ( Fig. 41A, D–E View FIGURE 41 ), apex curved outwards in dorsal and ventral views ( Fig. 41B–C View FIGURE 41 ); gonostylus wide with apex conical and blade-like in lateral view ( Fig. 41F View FIGURE 41 ); ejaculatory apodeme fan-shaped, directed posteriorly; phallus with prongs thin and long ( Fig. 41A, G View FIGURE 41 ); cercus short with apex rounded; subepandrial sclerite short with apex rounded and ventrally with an inverted Y-shaped projection ( Fig. 41H–I View FIGURE 41 ).

Length. Body: 18.5 mm; wing: 12.3 mm.

Female ( Fig. 42 View FIGURE 42 ). Similar to male except terminalia ( Fig. 42A–F View FIGURE 42 ); T7 shining black and black setose; T8 shining black and black setose; cercus with yellowish setae apically; S8 and hypoproct with dark reddish setae; keel of genital fork and hypoproct with dark reddish spines ( Fig. 42A–C View FIGURE 42 ); spermathecae rod-like ( Fig. 42G View FIGURE 42 ), reaching abdominal segment 6; spermathecal pump about 3 times smaller than length of spermathecal duct, slightly turgid ( Fig. 42G–I View FIGURE 42 ); spermathecal ducts ending separately at genital fork ( Fig. 42G–I View FIGURE 42 ); apodeme of genital fork connected laterally with lateral sclerites ( Fig. 42G–I View FIGURE 42 ), slightly enlarged at mid-length ( Fig. 42G–H View FIGURE 42 ); lateral sclerites connected with T9+10; apodeme of genital fork without a mid-dorsal ridge ( Fig. 42I View FIGURE 42 ).

Variation. Face pruinosity golden yellow; postpedicel black; apex of fore femur black; apex of fore tibia and first tarsomere of fore leg black.

Etymology. indecisa , from Latin: indecisus: undecided, not settled or determined. The name makes allusion to the similarity of this species with C. baleta and C. martini , being C. indecisa sp. nov., an intermediate, hard to identify among its closely related species.

Taxonomic discussion. The most similar species are Catostola baleta comb. nov., and Catostola martini comb. nov., It can be differentiated from the first by the entire black hind femur and by the shape of epandrial finger-like projection with the apex being constricted earlier ( Fig. 40E View FIGURE 40 ) and the shape of gonocoxite which has the posterior half narrower and the gonostylus slightly wider ( Fig. 41E–F View FIGURE 41 ). From the second only characters of the male terminalia are useful to make the distinction. The epandrial finger-like projection is more indented ventrally sub-apically in C. martini comb. nov. ( Fig. 20E View FIGURE 20 ) than C. indecisa sp. nov. ( Fig. 40E View FIGURE 40 ), the gonocoxite is much narrower ( Fig. 41E View FIGURE 41 ) while in C. martini comb. nov. it only becomes extremely narrow sub-apically ( Fig. 21E View FIGURE 21 ).

Distribution ( Fig. 44 View FIGURE 44 ). Costa Rica (Puntarenas, Limón and San Jose).

Material examined. Holotype. COSTA RICA, Prov.[incia] Puntarenas, P.N.[Parque Nacional] Corcovado, Sector La Leona, Cerro Puma 100-302 m, 21 JUN–7 JUL 2003, K. Caballero, Libre, L _S_[Lambert Sur] 267700_ 518900 [8°27′12″N 83°29′35″W]#74483 / bar code INB0003734727 INBIOCRI COSTA RICA / Holotype Catostola indecisa sp. n. Camargo, Vieira & Rafael ( Fig. 38A View FIGURE 38 [insert]) (♁ MNCR ( INBIO)) GoogleMaps . Paratypes. Amubri, 70 m ,Talamanca , Prov. [incia] Limón, COSTA RICA. 6–11 Jun 1993, G. Gallardo. L-S-[Lambert Sur] 385500, 578050 [09°31′04″N 82°57′13″W] / bar code COSTA RICA INBIO CRI001 174886 / Ctenodontina det. EMFisher (1♀ MNCR ( INBIO)) GoogleMaps ; Río Rincón , Pen. [ínsula] Osa , Prov. [incia] Punta [renas], COSTA RICA, 30 m, 27 Dic 1993, M. Zumbado, L S 519700_286000 [08°37′08″N 83°29′08″W] # 2667 / bar code COSTA RICA INBIO CRI001 725936 (1♀ MNCR ( INBIO)) GoogleMaps ; Est. [ación] Sirena, P.N. [Parque Nacional] Corcovado , 0-100 m. Prov. [incia] Punt. [arenas], COSTA RICA. C. Saborio, Oct 1990, L-S- 270500-508300 [08°28′43″N 83°35′21″W] / bar code COSTA RICA INBIO CRI000 062067 / Ctenodontina sp. A det E.M. Fisher 04 (1♁ MNCR ( INBIO)) GoogleMaps ; Same data, N. Obando, Jun 1990, / bar code CRI000 644140 (1♀ MNCR ( INBIO)) . Additional material. Monte Redondo [09°47′21″N 84°07′34″W], Jan. 03 / COSTA RICA [San Jose], C.F. Underwood. Per Janson. / C.J. Wainwright Collection. B.M. 1948-488. (1♁ NHM) GoogleMaps .


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