Prisopoides brunnescens, Heleodoro & Rafael, 2020

Heleodoro, Raphael Aquino & Rafael, Jose Albertino, 2020, Review of the genus Dinelytron Gray (Prisopodidae: Prisopodinae: Prisopodini), with a phylogenetic analysis of the genera of the Prisopodini, including the description of a new genus, Zoologischer Anzeiger 285, pp. 37-80 : 60-63

Prisopoides brunnescens sp. nov.

Fig. 33A-B .

Examined material. Holotype and Paratype: “ Brasil, Parana, Morretes , 08.xii. 2010, 300 m, 25 21 0 18,47’’S, 48 52 0 44,49’’W, luz, M. Morais leg” (2 _ UFRPE) .

Etymology. The species name is derived from the Latin adjective brunnescens (browning, brownish) commonly used to refer to light brown colors, appertaining to the general coloration of this species.

Diagnosis. Anterior leg ventrally light brown, smooth; mid and posterior legs anteriorly and posteriorly the same ( Fig. 33B-C ). Abdominal sterna laterally light brown, medially dark brown ( Fig. 33B ). Sternum 7 rectangular, two times wider than long ( Fig. 34A ). Subgenital plate laterally with conspicuous emargination at posterior margin; posterior margin projection almost straight ( Fig. 34A ). Dorsal left in dorsal view reaching apical margin of dorsal lobe, conspicuously widened at mid and apical thirds with right lateral margin concave, left lateral margin convex; apex rounded ( Fig. 34 ). Basal pouch elongated, longer than wide, with truncated apex in dorsal view; left lateral margin emarginated near apical margin ( Fig. 34 ).

Description. General coloration light brown. Head. Anterodorsally light brown, posteriorly dark brown with small tubercles at vertex ( Fig. 33A ). Gena light brown, rugose. Clypeus and area between clypeus and labrum laterally light brown, medially with black spot. Area between clypeus and labrum inconspicuous. Compound eyes black, with copper-colored spots. Antenna light brown with dark brown spots and small setae. Pedicel two times shorter than flagellomere 1. Flagellomere 1 2.3 times longer than flagellomeres 2 and 3. Maxillary and labial palpi with small setae.

Thorax. Pronotum light brown, with dark brown bands ( Fig. 33A ). Mesonotum light brown, 1.4 times longer than pronotum, with conspicuous longitudinal medial carina; scutellum cordiform ( Fig. 33A ). Metanotum smooth, dark brown, shiny. Coxopleurite circular, rugose. Mesothoracic epimeron irregular in shape, rugose, light brown with dark brown spots. Mesothoracic episternum light brown, rugose, with long setae on ventral margin. Metathoracic pleural region dark brown, opaque, rugose, with black spots. Thoracic sterna shiny, black, with light and dark brown spots ( Fig. 33B ). Probasisternum dark brown, smooth ( Fig. 33B ). Mesobasisternum rugose, medially with conspicuous circular spot ( Fig. 33B ). Metasternum rugose.

Legs. All legs dorsally rugose light brown with dark brown spots; ventrally smooth, light brown ( Fig. 33A-B ). Anterior femur with several scattered small black spots dorsally ( Fig. 33A ); anterior margin almost straight, posterior margin slightly sinuous, with short setae ( Fig. 33A-B ); ventrally with dark brown spots in posterior half ( Fig. 33B ). Mid femur with anterior margin sinuous, posterior margin with three spines; ventrally light brown, smooth, with no spots ( Fig. 33C ). Mid tibia with anterior and posterior margin slightly sinuous. Posterior femur with anterior margin straight and short setae; posterior margin conspicuously sinuous, with seven small spines and long setae. Posterior tibia same as posterior femur, but with posterior margin slightly sinuous and 18 small spines.

Wings. Tegmina light brown, with light yellow veins and several transversal veins ( Fig. 33A ). Posterior wing with apical half of costal area concolor with tegmina; basal half and anal area hyaline.

Abdomen. Abdominal terga light brown, rugose, opaque, with short setae at ventral margin. Terga 1-7 rectangular, longer than wide in dorsal and lateral views. Tergum 8 rectangular, 1.5 times wider than long. Tergum 9 trapezoidal, two times wider than long. Tergum 10 semi-ellipsoid, with arched lateral and posterior margins. Cercus with rounded apex and short setae. Abdominal sterna rugose, light brown laterally, dark brown medially ( Fig. 33B ). Sterna 4-5 trapezoidal, with posterior margin wider than anterior margin ( Fig. 33B ). Sternum 4 two times longer than wide ( Fig. 33B ). Sternum 5 1.3 times longer than wide ( Fig. 33B ). Sternum 6 quadratic ( Fig. 33B ). Sternum 7 rectangular, two times wider than long ( Fig. 34A ). Sternum 8 rectangular, two times wider than long, with posterior margin slightly sinuous ( Fig. 34A ). Subgenital plate with conspicuous emargination at lateral posterior margin; posterior margin projection almost straight ( Fig. 34A ) Vomer with conspicuously arched base, lateral margin almost straight, apex acute, black ( Fig. 34B ).

Genitalia ( Figs. 35- 38 ). Dorsal left in dorsal view reaching apical margin of dorsal lobe, conspicuously widened at mid and apical thirds with right lateral margin concave, left lateral margin convex; apex rounded; attached to dorsal wall of genitalia. Basal pouch elongated, longer than wide, with truncated apex in dorsal view; in dorsal view with left lateral margin emarginated near apical margin; in ventral view with slightly sinuous lateral left and right lateral margin. Ventral lobe with single finger-like projection near basal margin.

Measurements. Body length 43.4-44.0; pronotum 2.6-3.0; mesonotum 4.1-4.6; anterior femur 5.5-5.8; mid femur 3.6-4.0; posterior femur 10.0-10.6.

Type condition. Holotype in good condition, except for the left antenna, which is missing, and the right anterior leg, which is separated from body. The paratype has both mid legs separated from body. Both specimens and their separated body parts are stored in 80% alcohol.

Geographical records. Brazil, Parana: Morretes.

Remarks. This species can be differentiated from Pe. atrobrunneus sp. nov. and Pe. villosipes by the clean light brown coloration of ventral side of the legs (dark brown with several spots in Pe. atrobrunneus sp. nov. and Pe. villosipes comb. nov.) as well as by the light brown lateral coloration of abdominal sterna (dark brown in Pe. atrobrunneus sp. nov. and Pe. villosipes comb. nov.). From Pe. caatingaensis by the lack of scattered small black spots on the ventral side of the anterior femur.

Figures

Fig. 33. Prisopoides brunnescens sp. nov. _ holotype. A) habitus, dorsal view; B) idem, ventral view; C) mid femur, anterior view.

Fig. 34. Prisopoides brunnescens sp. nov. _ holotype abdominal structures. A) sterna 7-9; B) vomer, ventral view.

Fig. 35. Prisopoides brunnescens sp. nov. _ holotype genitalia. A) dorsal view; B) scheme of Figure A.

Fig. 38. Prisopoides brunnescens sp. nov. _ holotype genitalia. A) ventral view; B) scheme of Figure A.