Debilos masipum Scherrer, 2012

Scherrer, Marcus V. & Aguiar, Alexandre P., 2012, 3469, Zootaxa 3469, pp. 1-76 : 26-27

Debilos masipum Scherrer , sp. nov.

( Figs 45, 49, 111, 145)

Description. Female. Fore wing 5.88 mm. Head: Antenna with 25 flagellomeres. Clypeus punctate, moderately convex, regularly curved, CWH 1.83; MWC 0.57, MLW 2.23, MWW 0.54; malar space moderately long, MSM 1.23; supra-antennal area with median, longitudinal carina; minimum distance from eye margin to occipital carina laterally approximately same width of mandible base.

Mesosoma ( Fig. 111). Pronotum lateral portion without distinct ridges or rugae, epomia faint; notaulus moderately impressed, inconspicuously, minutely corrugated, especially anteriorly, not reaching middle of mesoscutum; mesopleuron dorsal half medially inconspicuously rugulose, especially dorsally, ventral half without distinct ridges or rugae, epicnemial carina restricted to ventral 0.6 of mesopleuron, posteriorly not corrugated; mesopleural groove moderately corrugated; sternaulus anterior half faintly corrugated; postpectal carina medially distinctly bent ( Fig. 45); metapleuron, subapical fovea shallow, subcircular; pleural carina moderately stout; propodeum anterior area very long, PLL 1.23 ( Fig. 49), anterior transverse carina distinct, complete, medially distinctly arched forwards, posterior area faintly strigate-rugose, with faint ridges medially slightly arched backwards, spiracle distinctly elliptic, SWL 1.80, propodeal apophyses long, thorn-shaped, AHD 2.50. Legs: Hind t4 posterior lobe about 0.4 × as long as anterior lobe. Fore wing vein (Rs+M)b perfectly straight, limit with crossvein 1m-cu distinct, ramellus absent; vein Rs&1M uniformly slightly curved; crossvein 1cu-a posteriorly slightly convex, arising opposite vein Rs&1M, angle with vein M+Cu about 90 degrees; vein 2Cua moderately shorter than crossvein 2cu-a, FWC 0.57; areolet small, APH 0.71; vein 2Ma distinctly shorter than vein 2Mb; vein 2Mb tubular; crossvein 2m-cu with bulla short, about 0.2 × as long as vein length or shorter; vein 2Rsb sinuous. Hind wing vein 2-1A long, reaching about 0.8–0.9 × the distance to wing margin, HWC 1.47.

Metasoma ( Fig. 111). T1 petiole basal half smooth towards base, apical half, postpetiole coriarious-punctulate, except pospetiole apical parts centrally smooth, sparsely punctulate, spiracle at about basal 0.7, prominent, T1LW 3.04, T1WW 2.70, T1GL 0.31; T2 moderately short, apically robust, T2T1L 0.71, thyridium distinctly longer than wide, T2LW 0.93, T2WW 2.29. Ovipositor approximately straight, OST 0.56, dorsal valve with nodus absent, notch absent; ventral valve tip with inconspicuous serrations restricted to very tip.

Color. Head black, mesosoma and legs brown (125, 092, 057), metasoma mostly dark brown (073, 054, 042) and dark yellowish (165, 127, 020). Head: Scape ventrally lightest; scape and pedicel dorsally, flagellomeres 1, 5– 10 entirely white; clypeus dark brown; mouth parts whitish (218, 216, 195), except mandible apex blackish. Mesosoma: Collar entirely, tegula, subalar ridge, and propodeal apophyses white; propleuron darker than pronotum, except ventro-lateral corner white; mesoscutum medially with centro-posterior square dark mark; propodeum anterior portion centrally darkest. Legs: Fore and mid coxae and trochanters, hind coxa apical margin, trochanter basal margin, tibia basal 0.2, and t2 entirely and t3 basal half white, except dorsal brown mark taking mid coxa basal 0.2 and mid trochanter dorsally dark brown; hind trochanter apical margin dorsally, trochantellus ventrally and femora basal 0.1 lightest; trochantellus apical parts dorsally, fore and mid femur basally, fore and mid tibiae anteriorly and posteriorly, and hind trochanter apical margin dorsally pale yellow (241, 224, 144) to whitish. Fore wing with two distinct dark spots, on apical half of cell 3M and 1+2R1, and cell 1Cu apical parts, and respective surrounding areas. Metasoma: T1 and T2 entirely, and T3 basal half dark brown, except T1 ventrally and thyridium lightest, T1 apical 0.2 and T2 apical 0.3 with white stripe, T2 stripe central 0.6–0.7 anteriorly concave, concavity interior dark yellowish and apex reaching about half stripe width; T3 apical half, T4–8 basally brown, dark yellowish toward tergites apex; T6 apical margin, T7 and T8 dorsally, and sternites medially white; ovipositor sheath dark brown, except basal 0.8 ventrally whitish; ovipositor light brown (187, 144, 084).

Male. Unknown.

Variability. Hind wing vein 2-1A sometimes reaching wing margin. Color: Flagellomere 1 dorsally sometimes with central faint white mark; scutellum occasionally lightest; mid coxa with brown mark sometimes restricted to basal margin; extension and brightness of lightest marks on legs variable.

Comments. Included in the D. typurum species group (see item Species Delimitation). Among all Debilos spp. , D. masipum along with D. okarum , D. sanimum , and D. makirum uniquely have the mesoscutum with a medial, centro-posterior square dark mark. Among these species cited above, D. masipum can be wrongly taken as D. sanimum , because of their very similar body color pattern, especially the metasoma posterior half dark yellowish. However, D. masipum differs from D. sanimum by having the collar entirely white (vs. orangish brown, dorsally white), postpectal carina medially distinctly bent (vs. straight), propodeum anterior area very long, PLL 1.23 (vs. short, PLL 0.61), propodeal spiracle distinctly elliptic, SWL 1.80 (vs. very elongate, SWL 2.67), and hind t2 entirely and t3 basal half whitish (vs. tarsus without white marks).

Due to its metasoma posterior half dark yellowish, D. masipum can also resemble D. tasamunum , but can be instantly separated from it by having the flagellomere 1 dorsally white (vs. without white mark), mesoscutum medially with centro-posterior square dark mark (vs. without medial dark mark), epicnemial carina restricted to ventral 0.6 of mesopleuron (vs. 0.8 of mesopleuron), postpectal carina medially distinctly bent (vs. straight) and hind t2 entirely and t3 basal half whitish (vs. t1 apically, t2 and t3 white).

Etymology. From the Carib word masìpe, meaning “long,” in reference to the propodeum anterior area very long in this species.

Distribution. Brazil. Apparently associated to Atlantic rainforest, recorded from several localities at Espírito Santo: Alfredo Chaves (20°27’53”S 40°42’35”W), Reserva Biológica Duas Bocas, Cariacica (20°16’21”S 40°28’40”W), Mata Pico do Eldorado, Domingos Martins (20°22’17”S 40°39’29”W), Fazenda Clarindo Kruger, Santa Maria de Jetibá (20°04’27.9”S 40°44’51.3”W), and Estação Biológica Santa Lúcia, Santa Teresa (19°57’55”S 40°32’25”W) ( Fig. 145).

Material Examined. 12 ♀. Holotype ♀ from BRAZIL, Espírito Santo, Reserva Biológica Duas Bocas , Pau Amarelo, 24–26.X.2005, yellow pans, APAguiar et al. leg. ( UFES) . In good shape, mounted on triangle point. Paratypes: BRAZIL : 1 ♀ from Espírito Santo, Santa Teresa , Estação Biológica Santa Lúcia, 09–13.V.2006, yellow pans, MTavares, CAzevedo et al. leg. ( UFES) ; 2 ♀, same data except 30.VII–04.VIII.2005 ( UFES) ; 1 ♀, same data except Santa Maria de Jetibá , Faz. Clarindo Kruger, 20°04’27.9”S 40°44’51.3”W, 06–13.XII.2002, Malaise trap B8, MTavares, CAzevedo et al. leg. ( UFES) ; 1 ♀, same data except Cariacica , Reserva Biológica Duas Bocas, sede, 20°16’21”S 40°28’40”W, 29–30.IV.2005, APAguiar et al. leg ( UFES) ; 3 ♀, same data except Pau Amarelo , 22–24.X.2005 ( UFES) ; 1 ♀, same data except 25–27.X.2003 ( UFES) ; 1 ♀, same data except 28–31.X.2005 ( UFES) ; 1 ♀, same data except Alfredo Chaves , 20°27’53”S 40°42’35”W, Picadão, mata, 714 m, 8–15.X.2007, Malaise trap 6, COAzevedo et al. leg ( UFES) .