Traumatomutilla guayaca Casal, 1969

Bartholomay, Pedro R., Williams, Kevin A., Cambra, Roberto A. & Oliveira, Marcio L., 2022, Revision of the Traumatomutilla indica species-group (Hymenoptera: Mutillidae), Zootaxa 5108 (1), pp. 1-97 : 34-38

Traumatomutilla guayaca Casal, 1969

( Figs 10A–F , 11A–F )

Traumatomutilla guayaca Casal, 1969: 284 , holotype, ♀, Ecuador, Esmeraldas, Parr. San Mateo (AMNH), examined. Traumatomutilla tayguaya Casal, 1969: 285 , holotype, ♀, Colombia, Valle Let. Ang. [sic] (AMNH), examined, syn. nov.

Diagnosis. FEMALE. Mesonotum as wide as distance between pronotal spiracles, anterolateral corners of pronotum sharply angulate, scutellar scale and anterolateral carinae indistinct, dorsal face of propodeum as long as posterior face, lateral face of propodeum mostly unsculptured smooth and shinning. MALE. Mesopleuron simply swollen on dorsal half, axillar projections acute, scutellum simply convex without distinguishable dorsal and posterior faces, S2 without setae-filled pit, pronotum with dense micropunctures.

Description. FEMALE. Body length 10–14 mm. Head. Posterior margin virtually straight. Occipital carina evenly arched and equally wide throughout. Vertex width 0.8 × pronotal width. Eye almost circular, its length in frontal view 1.1 × the distance from its ventral margin to mandibular condyle. Sculpture partially concealed by dense setae, densely and coarsely foveolate-punctate to areolate-punctate where visible; sculpture conspicuously sparser on gena and malar space. Genal carina present. Mandible oblique, tapering slightly towards apex, with small subapical tooth. Dorsal scrobal carina well-defined, broadly separated from antennal tubercles and indistinct lateral scrobal carina. Antennal tubercle irregularly rugose. Flagellomere 1 2.0 × pedicel length; flagellomere 2 1.6 × pedicel length. Mesosoma . Mesosoma 0.9 × as long as wide. Mesosomal dorsum sculpture partially concealed by dense setation, densely and coarsely areolate-punctate where visible; simply micropunctate mediad; with poorly defined medial longitudinal carina; dorsal face of propodeum with medial longitudinal carina; scutellar area simply punctate. Anterior face of pronotum defined, slightly longer than pronotal collar, indistinctly and coarsely striated longitudinally basad and with dense coarse and confused punctures dorsad; dorsal face roundly angulate into anterior face in lateral view. Humeral carina well-defined, broadly separated from slightly projected rounded epaulet, anterolateral corners of pronotum sharply angulate in dorsal view. Pronotal spiracle slightly projected from lateral margin of pronotum, rounded. Lateral face of pronotum sparsely punctate with dense interspersed micropunctures; with indistinct blunt tubercle on ventral margin anterior to pronotal spiracle; mesopleuron sculpture mostly concealed by dense setation, micropunctate anteriorly and sparsely foveolate-punctate along mesopleural ridge where visible; metapleuron sculpture partially concealed by dense setation, dorsal half completely asetose, smooth. Lateral face of propodeum sparsely foveolate-punctate, with large smooth, shinning intervals. Ratios of width of humeral angles, pronotal spiracles, widest point of mesonotum, narrowest point of mesonotum and propodeum posterior to propodeal spiracles, 62:69:68:50:47. Lateral margin of mesonotum constricted anterior to propodeal spiracle, diverging anteriad, mesonotum with expanded lateral margins. Propodeal spiracle projected from lateral margin of mesosoma; post-spiracular area absent. Scutellar scale and anterolateral carinae indistinct, reduced to irregular transverse outlines on scutellar area; scabrous intervals absent on scutellar area. Propodeum convex, dorsal face longer than and slightly angulate rounded into posterior face. Metasoma. Ratios of width of T1, width of T2 and length of T2, 35:85:91. Disc of T2 densely and coarsely foveolate-punctate to punctate with dense interspersed micropunctures; foveolations sparser and micropunctures absent laterally and over integumental spots. T3–5 sculpture predominantly concealed by dense setation, densely and coarsely foveolate-punctate to simply punctate with interspersed micropunctures where visible; T6, except pygidial plate, densely and coarsely punctate. S1 surface cuneiform, densely, coarsely and confusedly foveolate-punctate around blunt longitudinal medial carina slightly higher medially. S2 densely foveolate-punctate, more sparsely and finely so posteromediad; anteromedial crest-fold indistinct. S3–6 sculpture mostly concealed by dense setation, densely and finely foveolate-punctate where visible. Pygidial plate subpyriform, defined by lateral carinae at apical third of plate; surface with transverse coarse and irregular rugosities; interstice granulose.

MALE. Body length 11–13 mm. Head. Transversely subrectangular with posterolateral angles rounded in dorsal view, 0.8 × as wide as pronotal width. Eye almost circular. Ocelli small; OOD 4.8 × DLO, IOD virtually equal to DLO. Occipital carina distinct. Head surface virtually concealed by dense setation, sparsely and finely punctate where visible. Gena ecarinate. Antennal scrobe concave to eye margin, with well-defined transverse dorsal scrobal carina. Clypeus concave laterally immediately below antennal insertion, conspicuously convex medially; surface densely concealed by setation; apical/ventral margin with a pair of medial subrounded subsessile teeth. Scape bicarinate. Flagellomere 1 1.8 × pedicel length; flagellomere 2 2.3 × pedicel length. Mandible obliquely tridentate apically, inner tooth larger than medial tooth; lacking dorsal or ventral projections. Mesosoma . Epaulets well-defined, slightly projected from anterior margin of pronotum, broadly separated from short humeral carina, anterolateral angles of pronotum subrounded. Anterior face of pronotum sparsely punctate with interspersed micropunctures, marginally concave basomedially. Tegula convex, mostly glabrous and impunctate except for dense coarse punctures on along inner and anterior margins. Mesoscutum densely and coarsely foveolate-punctate, notaulus and parapsis present, reduced to posterior half of mesoscutum. Scutellum convex, densely and finely foveolate-punctate; with longitudinal unsculptured area anteromedially; dorsal and posterior faces poorly distinguished. Axilla produced posterolaterally as short acute projection, with slightly concave and coarse dense foveolate-punctate dorsal surface. Metanotum slightly wider laterally, its surface obscured by dense setation. Propodeal dorsum convex, partially concealed by dense setation, densely areolate where visible; sculpture of lateral face indistinct to absent anteriad; dorsal face rounded into and poorly distinguished from posterior face. Lateral face of pronotum densely micropunctate; mesopleuron with indistinct blunt swelling on dorsal half; mesopleural sculpture densely and coarsely areolatepunctate to foveolate-punctate with interspersed micropunctures; simply micropunctate anteriad; sparsely foveolate punctate with smooth intervals posterad. Metapleuron smooth throughout, except for indistinct areolations on basal fourth, micropunctate on dorsal fourth. Wings. Forewing with elongate sclerotized pterostigma; marginal cell elongated, truncate apically; three submarginal cells. Legs. Simply setose, no strong spines discernible dorsally; spurs finely serrate on margins. Metasoma. Ratios of width of T1, width of T2 and length of T2, 50:98:78. Dorsal metasomal sculpture partially concealed by dense setation, densely and finely punctate with interspersed micropunctures where visible; Pygidial plate indistinctly granulose apicad, unsculptured and smooth basad, slightly broader than long, weakly defined by parallel carinae apicolaterally. S1 longitudinally elevated medially, terminating in longitudinal slightly concave carina with short spine-like projection posteriorly. S2 sparsely foveolate-punctate to punctate; sculpture sparser posteromediad; longitudinal anteromedial crest-fold present. S3–6 sparsely and coarsely foveolate-punctate with sparse interspersed micropunctures; S7 densely foveolate-punctate with well-defined medial longitudinal unsculptured area; longer than broad, well-defined by lateral carinae throughout, posterior margin projected medially into a single tooth-like structure on posterior margin; apex of projections bilobate. Genitalia. Parapenial lobe not at all pronounced apically, subacute. Ratios of free length of paramere, cuspis and digitus, 64:52:13; paramere virtually straight in dorsal view, apex upcurved in lateral view and outcurved in dorsal view; with sparse setae ventrally at anterior half; cuspis thin, slender, elongate, equally wide throughout in dorsal view, slightly narrower apicad in lateral view; with scattered inconspicuous long setae apically and sparse inconspicuous short setae elsewhere; paracuspis well-developed, not sessile, longer than wide, with subrounded and sparsely setose posterodorsal margin in lateral view; setae longer than or as long as paracuspis; digitus short, slightly curved inward in dorsal view and upcurved in lateral view, apparently asetose basodorsally, apex somewhat expanded, subcapitate in lateral view; penis valve with inner surface strongly concave, and well-defined pair of short teeth posteroventrally; posterior tooth acute, subposterior tooth subacute, with externolateral pocket; apical distance between teeth 0.1 × length of valve; sparse setae present along subtruncate posterior margin; inconspicuous setae present at base of subposterior tooth on external surface.

Coloration and variations. FEMALES. Integument black except mandibles and antennal flagellomeres partially reddish-brown, and T2 with four yellowish integumental spots; Spots varying in shape and color: linear to subrectangular or elliptical; yellowish to orange. Body setae predominantly silvery-white varying in density except the following areas with black setae varying in density: frons, pronotal dorsum, dorsal half of lateral face of pronotum, mesonotum laterally, dorsal half of mesopleuron, propodeal dorsum laterally, lateral face of propodeum, T1 medially, disc of T2 (except over integumental spots), fringe of T2–5 sublaterally, T6 (except pygidial plate) laterally, and S1–5: some specimens have the silvery-white areas better defined and somewhat denser than others, the head completely covered with silvery-white setae, and the mesosomal lines of silvery-white setae broader and longer. MALES. Integument black to brownish-black except mandibles partially reddish-brown. Body setae predominantly silvery-white varying in density, except following areas with black setae varying in density: propodeum posterolaterally; mesoscutum, axillar projections, scutellum basally, posterior half of T2, fringe of T2 partially, T5–7 (except pygidial plate) medially. Tibial spurs yellowish-white. Wings mostly light brown infuscated, basal third hyaline, apical third conspicuously darker and with faint purplish reflections.

Distribution. Colombia, Venezuela, French Guiana, and Ecuador.

Material examined. (17♀, 25♂) Type material. Holotype of Traumatomutilla guayaca , ♀, ECUADOR, Esmeraldas, Parr. San Mateo ( AMNH) ; holotype of T. tayguaya , ♀, Colombia, Valle Let. Ang. [sic] ( AMNH) . Additional material. VENEZUELA: 1♀ ( MNHN) ; Bolivar, 50 km ESE [kilometers east by southeast of] Ciudad Bolivar, Santa Rita Ranch , 1♀, 19.VI–08.VII.1999, T. Alten ( UCRC) ; Ribero, Cariaco , 1♀, Santschi ( MNHN) ; Guárico, Hato Masaguaral , 44km S Calabozo, 1♀, 20–28.V.1985, Menke & Carpenter ( EMUS) ; Aragua: 2 km N [kilometers North of] Ocumare de la Costa, 1♂, 31.III.1981, Hollenberg & Menke ( USNM) ; Puerto de Cata , 3♂, 10.VI.1976, Vincent & Menke ( USNM) ; Zulia, El Tucuco, 45 km SW [kilometers southwest of] Mathiques , 1♂, 5.VI.1976, Vincent & Menke ( USNM) ; COLOMBIA: 6♂ (IAvH) ; Magdalena: 6♂ (IAvH) ; 26 km E [kilometers east of] Santa Maria , 2♂, 15.II.1979, R.C. Wilkerson ( FSCA) ; Rio Frio , 1♂, 26.VII.1927, G. Salt ( NHM) ; Meta, PNN La Macarena: Mesetes , 3°22’N 74°02’W, 580m [meters above sea level], 1♂, 23.XII.1993, F. Fernandez (IAvH) ; La Curia , 3°20’N 73°53’W, 550m [meters above sea level], 1♂, 25.XII.1995, F. Fernandez (IAvH) ; Res. [Reserva] La Naca Rena [La Macarena] Mpio [sic], 1♀, 17.VII.1988, W. Cubillos ( AMNH) ; Res. [Reserva] Nat. [Natural] El Caduceo, H.C. [sic], Savanna , 03°40N 73°39’W 1400’[sic], 03–08.I.2012 ( EMUS) ; Cord. [Cordillera] Macarena , 01–15.III.1976, M. Cooper ( NHM) ; 1♀, 15–26.II.1976, M. Cooper ( NHM) ; Bolívar, Sambrano [Zambrano], 2♀, VIII.1992, M. Andrea ( AMNH) ; M. forestral [sic], 9°37’N 74°54’W, 10m [above the ground], 1♂, 23.IV.1993, F. Fernandez (IAvH); Guajira, Dibulla , 1♀, Forel ( MNHN) ; Vichada, PNN [Parque Nacional Natural El] Tuparro, Cumarida, 315m [meters above sea level], 1♂, 30.XII.1998, W. Villalba (IAvH), Gaviotas , 15.X.1972, 1♀, R. Cortes ( MIUP) ; Madre de Dios, PNN [Parque Nacional Natural] Tayrona Neguanje , 11°20’N 74°02’W, 10m [above the ground], 21.III–05.IV.2001, R. Henriquez ( CSCA) ; Arauca, Tame. , 2♀, 20–27.VII.1976, M. Cooper ( NHM) ; FRENCH GUIANA, [Cayenne], Cayenne , 1♀ ( MNHN) .

Remarks. There are four widespread species of the T. indica species-group in the northwestern Amazon, T. indica , T. selligera , T. parallela , and T. guayaca . After the sex associations of T. indica , T. selligera , and T. parallela were established (detailed in their respective remarks sections), the only members of this group left unassociated in the northwestern Amazon were T. guayaca and its previously undescribed male. Therefore, the sex association of T. guayaca was achieved through a process of elimination as well as repeated co-ocurrence in multiple Colombian and Brazilian areas. Additionally, T. guayaca is the only species of Traumatomutilla to be recorded west of the Andes in Ecuador, apart from T. vitelligera ( Gerstaecker, 1874) . The holotypes of T. guayaca and T. tayguaya were examined, compared, and found to be structurally identical differing only the mesosomal stripes of silvery-white setae which are broader and longer in T. tayguaya , and the head setae which is silvery-white only on the vertex in T. guayaca . Though this species also superficially resembles and can occur in the same areas as T. selligera , it is distinct when comparing the scutellar armature and sculpture of the lateral propodeal face in the females and in the scutellum of the males.

Figures

FIGURES 10A–F. A–C. Traumatomutilla guayaca Casal, 1969, holotype, ♀, line 2 mm; A. Dorsal habitus; B. Lateral habitus; C. Type labels; D–F. T. tayguaya Casal, 1969, holotype, ♀, line 2 mm; D. Dorsal habitus; C. Lateral habitus; F. Type labels.

FIGURES 11A–F. Traumatomutilla guayaca Casal, 1969, ♂, line 2 mm; A. Lateral habitus; B. Genitalia (halved), dorsal view; C. Genitalia (halved), ventral view; D. Genitalia (halved, penis valve removed), lateral/inner view; E. Cuspis (removed, not to scale), lateral/inner view; F. Penis valve (removed, not to scale), lateral/outer view.