Dinelytron betinho, 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 : 44-45

publication ID	https://doi.org/ 10.1016/j.jcz.2020.01.005
DOI	https://doi.org/10.5281/zenodo.3716930
persistent identifier	https://treatment.plazi.org/id/9D0A8794-FFD0-066F-0668-643DB8DAEE4B
treatment provided by	Plazi
scientific name	Dinelytron betinho
status	sp. nov.

Treatment

Dinelytron betinho View in CoL sp. nov.

Fig. 8A-B View Fig .

Examined material. Holotype _ ( Fig. 8A-B, D View Fig ): “Viçosa, MG [Minas Gerais], BRASIL, Data 10.xi.1982, Fiuza & Martins [collector], Corrego do Paraíso, Mata da Prefeitura, Armadilha UV [blacklight trap]” ( UFV).

Paratypes: same data as holotype, except “ 4.xi.1981 ” (1 _ UFV); “ 10.xi.1982 ” (3 _ UFV) .

Etymology. The species name is dedicated to Alberto Moreira Silva Neto, nicknamed “betinho”.

Diagnosis. Clypeus 4.7 times wider than high ( Fig. 8C-D View Fig ). Median vein of tegmina bifurcated in Medial anterior and Medial posterior at base; Medial anterior bifurcated in medial anterior 1 and 2 at approximately half the length of tegmina ( Fig. 8E View Fig ). Male subgenital plate with lateral projection at apical margin ( Fig. 9B View Fig ). Male genitalia in dorsal view: basal pouch auriform ( Figs. 4 View Fig , 5 View Fig and 10 View Fig ). Apex of dorsal left sclerite þ left posterior process ovoid ( Figs. 4 View Fig , 5 View Fig and 10 View Fig ). Internal sclerite two times shorter than basal pouch, somewhat reniform ( Fig. 10 View Fig ).

Description. Body dark brown. Head. Frontal suture conspicuous, forming conspicuous light brown sulcus ( Fig. 8C View Fig ); coronal suture conspicuous. Clypeus 4.7 times wider than high, light yellow with light brown spots; medially with inconspicuous depression ( Fig. 8C, D View Fig ). Labrum light yellow, asymmetric, with left half slightly longer than right half ( Fig. 8C, D View Fig ). Antenna with flagellomere 1 subrectangular, 2.5 times longer than wide and three times longer than flagellomere 2; flagellomere 2 subquadrangular; flagellomere 3 rectangular, two times longer than flagellomere 2. Compound eye globose, light brown with black spots ( Fig. 8C View Fig ).

Thorax. Pronotum with median longitudinal sulcus and transversal black spot at apical margin. Mesonotum 2.2 times longer than pronotum, with black spot at basal margin, median longitudinal carina. Coxopleurite rugose, light brown, semi-ellipsoid ( Fig. 8B View Fig ). Mesothoracic epimeron smooth, light brown, rounded; mesothoracic episternum rugose, anteriorly light brown, posteriorly dark brown, subtriangular ( Fig. 8B View Fig ). Metathoracic pleural region smooth, subtrapezoidal ( Fig. 8B View Fig ). Thoracic venter yellow, with dark brown longitudinal medial line from base to apex. Probasisternum trapezoidal, with anterior margin arched, convex. Meso- and meta-basisterna smooth, rectangular, longer than wide, with medial circular sclerite concolor with venter.

Legs. All legs dorsally light brown ( Fig. 8B View Fig ), ventrally light yellow, laterally with white setae; apical third of femurs and basal third of tibias with black spots ( Fig.8A, B View Fig ). Anterior femur 6 times longer than wide, dorsally with three conspicuous longitudinal parallel carinae ( Fig. 8B View Fig ); ventrally smooth. Anterior tibia dorsally setose, with two conspicuous longitudinal carinae; ventrally smooth. Mid femur ventrally with median longitudinal carina and four spines at anterior margin. Posterior femur with three longitudinal parallel carinae dorsally; ventrally with six inconspicuous spines at anterior margin; ventro-posterior margin slightly sinuous, better observed ventrally.

Wings. Tegmina light brown, with rounded apex ( Fig. 8E View Fig ). Radial vein subdivided in Radial anterior and Radial posterior at apical third ( Fig. 8E View Fig ). Median vein bifurcated in Medial anterior and Medial posterior at base; Medial anterior bifurcated in medial anterior 1 and 2 at approximately half the length of tegmina ( Fig. 8E View Fig ). Cubital vein slightly curved. Posterior wing with distal portion of costal area concolor with tegmina; veins of anal area inconspicuous.

Abdomen. Abdominal terga opaque. Terga 1-7 rectangular, longer than wide, with longitudinal medial carinae and sparse granules. Tergum 8 trapezoidal, 1.2 times longer than tergum 9 ( Fig. 9A View Fig ). Tergum 9 trapezoidal, with basal margin straight,1.3 times wider than apical margin, which is slightly concave ( Fig.9A View Fig ).Tergum 10 two times shorter than Tergum 8, with basal margin concave, lateral margin straight, apical margin convex ( Fig. 9A View Fig ). Cercus laterally flattened, with setae ( Fig. 9A, C View Fig ). Sterna 1-9 gradually decreasing in length. Sterna 7-9 with conspicuous wide longitudinal medial sulcus ( Fig. 9B View Fig ). Sternum 7 rectangular, 1.6 times wider than long with all margins straight ( Fig. 9B View Fig ). Sternum 8 rectangular, three times wider than long, with convex basal and lateral margins, sinuous apical margin ( Fig. 9B View Fig ). Subgenital plate (sternum 9), rectangular, with basal and lateral margin convex; apical margin concave, laterally with rhomboid projection ( Fig. 9B View Fig ). Vomer with slightly sinuous lateral margin, acute and black apex ( Fig. 6C View Fig ).

Genitalia ( Figs. 4 View Fig , 5 View Fig and 10 View Fig ). Basal pouch auriform. Dorsal left sclerite attached to dorsal wall of genitalia; medial portion of dorsal left sclerite conspicuously arched; apex of dorsal left sclerite þ left posterior process ovoid. Left posterior process conspicuous. Internal sclerite two times shorter than basal pouch, somewhat reniform, in dorsal view seeming to be located underneath the basal pouch. Flagellum present.

Measurements (mm). Body length 34.5-35.2; dorsal head length 1.5-1.7; pronotum 1.4-1.5; mesonotum 1.2-1.3; anterior femur 6.5-6.6; anterior tibia 3.2-3.3; mid femur 3.6; mid tibia 2.4-2.7; posterior femur 6.7; posterior tibia 4.3-4.4.

Type condition. Holotype: left anterior and right posterior legs and left antenna glued to a piece of label paper pinned to the specimen support. Right antenna with approximately half the length missing.

Geographical records. Brazil, Minas Gerais: Viçosa.

Remarks. This species can be easily distinguished from all other Dinelytron species by the subgenital plate with latero-apical rhomboid projection on the apical margin.