Agrostia flavimaculata, Heleodoro & Mendes & Rafael, 2017

Heleodoro, Raphael Aquino, Mendes, Diego Matheus de Mello & Rafael, José Albertino, 2017, Studies on Brazilian Pseudophasmatidae (Phasmatodea) with the description of a new species of Agrostia Redtenbacher and new records for Metriophasma Uvarov and Parastratocles Redtenbacher, Revista Brasileira de Entomologia 61 (2), pp. 170-177 : 171-175

Agrostia flavimaculata sp. nov.

( Figs. 1–17 )

Diagnosis. Ocelli orange ( Figs. 1, 4 , 10 ). Tegmina with ellipsoid yellow spot at median region ( Figs. 1, 3, 6 , 10, 13, 14 ). Cercus laterally flattened ( Figs. 7–9 ; 15–17 ). Male subgenital plate longitudinally divided into hemisternites apically ( Fig. 9 ).

Description. Holotype ♂ ( Figs. 1–9 ). Head. Dorsally smooth, light brown, with concavity at vertex; coronal suture conspicuous, black ( Fig.4 ). Frons with black arched spots ( Fig.4 ). Vertex with two parallel arched pale stripes ( Fig. 4 ). Gena light yellow ( Figs. 2, 5 ). Clypeus trapezoidal. Labrum U-shaped. Ocelli ellipsoid, orange ( Figs. 1, 4 ). Eyes globose, light brown, with longitudinal arched stripe ( Fig. 5 ). Antenna covered by setae, dorsally black, ventrally light brown; first flagellomere 2 times longer than pedicellus ( Fig. 4 ). Maxillary and mandibular palpi yellow, shiny, covered by setae.

Thorax. Pronotum rectangular, 1.5 times longer than wide, with longitudinal black and light yellow stripes; latero-distally with small light yellow spots ( Fig. 4 ). Mesonotum rectangular, slender, elongated, 6 times longer than wide and 3 times longer than pronotum; with longitudinal parallel stripes, alternating black and light yellow; black stripes with small scattered light yellow spots ( Figs. 1 and 2 ). Metanotum rectangular, 2.5 times shorter than mesonotum, shiny, smooth and light yellow. Prosternum trapezoidal light yellow, with small rounded tubercles. Mesosternum rectangular, slender, elongated, 6 times longer than wide, light brown with several scattered small light yellow tubercles and no visible median longitudinal carina. Metasternum rectangular, elongated, broad, 3 times longer than wide, 1.5 times shorter than mesosternum; with surface rough, light brown ( Fig. 3 ).

Legs. All legs laterally covered by setae; with femora and tibiae light yellow and with small black spot at apex of femora and base of tibiae; ( Figs. 1–3 ). Mid and hind tarsi with third to fifth tarsomeres gradually turning light brown. Area apicalis in all tibiae conspicuous.

Wings ( Fig. 6 ). Tegmina ellipsoidal, elongated, 3 times longer than wide, brown, with small black spot at shoulder hump; longitudinal and transverse veins yellow; with ellipsoid yellow spot at median region. Alae approximately 5 times longer than tegmina, with costal area dark brown, anal area hyaline; longitudinal veins of costal area light yellow, transversal veins of anal area light brown.

Abdomen. Elongated, slender. Abdominal terga dorsally dark brown from base of tergum 1 to basal third of tergum 6. Terga 1–8 rectangular. Tergum 7 rectangular, in lateral view 4.3 times longer than high; in dorsal view 1.3 times longer than tergum 8, with deep longitudinal median sulcus. Tergum 8 rectangular with deep longitudinal median sulcus, in lateral view 3.4 times longer than high and 1.3 times longer than tergum 9 ( Figs. 7 and 8 ). Tergum 9 rectangular, 1.2 times longer than wide, with deep median longitudinal sulcus; trapezoidal in lateral view, with ventral margin convex, posterior margin emarginated, 2 times longer than tergum 10 ( Figs. 7 and 8 ). Tergum 10 dorsally flattened, anteriorly emarginated; lateral margin sinuous, broadening from base to apex; posterior margin convex; laterally covered by setae ( Fig. 7 ). Abdominal sterna dark brown, with small-scattered yellow spots ( Fig.3 ) with median longitudinal sulcus from sternum 2 to 8. Sterna 2–7 elongated, longer than wide ( Fig. 3 ). Subgenital plate covered with setae, ellipsoidal, longitudinally divided into hemisternites apically, being 1.5 times longer than tergum 9 ( Fig. 9 ). Paraprocts ellipsoidal, elongated, not covered by subgenital plate. Cercus light brown, covered with setae, moderately incurved, laterally flattened, with pointed apex ( Figs. 7–9 ).

Measurements (mm). Holotype: body length 62.5; antenna> 55.0; dorsal head length 3.8 pronotum 2.7; mesonotum 6.4; fore femur 10.5; fore tibia 11.6; mid femur 6.4; mid tibia 5.7; hind femur 10. 4; hind tibia 10.5; tegmina length 7.3; alae length 31.9.

Paratype: body length 56.3; dorsal head length 3.1; antenna> 55.0; pronotum 2.5; mesonotum 6.1; fore femur 10.4; fore tibia 11.6; mid femur 6.1; mid tibia 5.5; hind femur 10.0; hind tibia 10.1; tegmina length 6.3; alae length 34.4.

Female ( Figs. 10–17 ). Similar to male, but longer and robust. Following differences listed below.

Head. Slightly quadrate in dorsal view ( Fig. 10 ). Gena dark brown ( Fig. 11 ). Yellow spot at tegmina longer and broader ( Figs. 13 and 14 ).

Abdomen. Tergum 7 in lateral view 2.8 times longer than high ( Fig. 16 ). Tergum 8 in lateral view 1.6 times longer than high ( Fig. 16 ). Tergum 9 trapezoidal ( Fig. 15 ). Tergum 10 covered by setae, in dorsal view oblong, in lateral view with basal and lateral margins straight, posterior margin emarginated ( Figs. 15 and 16 ). Subgenital plate laterally compressed, gradually broadening from anterior margin toward apex, with posterior margin concave, being 1.2 times longer than tergum 9 ( Figs. 11, 16, 17 ). Cercus triangular, nearly straight.

Female measurements (mm). Acre specimen: body length 87.0; dorsal head length 5.2; antenna> 40.0; pronotum 4.6; mesonotum 9.0; fore femur 12.0; fore tibia 13.3; mid femur 10.0; mid tibia 9.7; hind femur 15.4; hind tibia 15.2; tegmina length 12.0; alae length 51.6.

Amazonas specimen: body length 75.5; dorsal head length 4.8; antenna> 40.0; pronotum 4.4; mesonotum 8.6; fore femur 12.0;

R.A. Heleodoro et al. / Revista Brasileira de Entomologia 61 (2017) 170–177 175

fore tibia 13.2; mid femur 9.7; mid tibia 9.4; hind femur 15.1; hind tibia 15.0; tegmina length 10.3; alae length 49.6.

Variations. Female specimens from Amazonas have a larger yellow spot, with more defined edges in comparison to female specimens from Acre ( Figs. 13 and 14 ).

Etymology. From Latin adjective flavus = yellow and noun macula = spot, referring to the yellow spot on the tegmina.

Geographical Records. Brazil: Amazonas, Acre.

Type material. Holotype ♂ ( INPA ). BRASIL, AC [Acre], Bujari , FES [Floresta Extrativista Sustentável] Antimary. 25–27.viii.2016. 09 ◦ 20 l 02 ll S-68 ◦ 19 l 15 ll W, Arm [armadilha] luz, AA Agudelo, FF Xavier, DMM Mendes, JA Rafael [cols.].

Paratypes. Same data as holotype (1♂, ♀ INPA ); Brasil, Amazonas , Manaus, Reserva Ducke, 02 ◦ 55 l 48 ll S 59 ◦ 58 l 30.6 ll W. 04.v.2014. Coleta manual. G. Gomes, col. (1♀ INPA ) .

Figures

Figs. 1–9. Agrostia flavimaculata sp. nov. holotype ♂. (1) Habitus, dorsal view. (2) Idem, lateral view. (3) Idem, ventral view. (4) Head and prothorax, dorsal view. (5) Head, lateral view. (6) Tegmina, dorsal view.(7) Apex of abdomen, dorsal view. (8) Idem, lateral view. (9) Idem, ventral view.

Figs. 10–17. Agrostia flavimaculata sp. nov. ♀. (10) Habitus of Acre specimen, dorsal view. (11) Idem, lateral view. (12) Idem, ventral view. (13) Tegmina of specimen from Acre, dorsal view. (14) Tegmina of specimen from Amazonas, idem. (15) Apex of abdomen, dorsal view. (16) Idem, Lateral view. (17) Idem, ventral view.