Dinelytron leukommatos,

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: 48-50

publication ID

http://doi.org/ 10.1016/j.jcz.2020.01.005

DOI

http://doi.org/10.5281/zenodo.3716938

persistent identifier

http://treatment.plazi.org/id/9D0A8794-FFDC-066A-055A-67C4B822EF32

treatment provided by

Plazi

scientific name

Dinelytron leukommatos
status

sp. nov.

Dinelytron leukommatos  sp. nov.

Fig. 14A-CView Fig.

Examined material. Holotype _ ( Fig. 9A-CView Fig): “ Brasil, Pernambuco, Recife , 8 0 0 57.19ʺS 34 57 0 0.53ʺW, 01.x.2014, Grossi, P. leg., fogging”. ( UFRPE).GoogleMaps 

Etymology. From the Greek leuko (white) and ommatos (eye), referring to the white compound eyes of this specimen. The coloration of the specimen is the same as when it was alive (Paschoal Grossi personal comm.).

Diagnosis. Compound eye white ( Fig. 14B, CView Fig). All antennomeres longer than wide ( Fig. 14A, BView Fig). Area between clypeus and labrum thin, inconspicuous ( Fig. 14C, DView Fig). Radial vein subdivided in Radial anterior and posterior at apical third; Radial anterior short, five times shorter than Radial posterior, pointing towards costal margin; Radial posterior almost reaching apex of tegmina ( Fig. 14EView Fig). Medial vein subdivided in Medial anterior and posterior near tegmina base; Medial anterior subdivided in Medial anterior 1 and 2 right before half tegmina length; Medial anterior 1 and 2 nearly straight; almost touching each other ( Fig. 14EView Fig). Subgenital plate dome-like shaped ( Fig. 15BView Fig). Vomer with oblong apex, shaped as inverted chalice ( Fig. 15CView Fig). In dorsal view ( Fig. 16View Fig): basal pouch large, long, semi-ellipsoid. Dorsal left sclerite sinuous, basally widened, medially gradually narrowing. Internal sclerite Y-shaped.

Description. Coloration did not change after specimen died; general coloration whitish gray ( Fig. 14AView Fig). Head. Frontal suture inconspicuous, forming an inconspicuous triangular light-yellow sulcus ( Fig. 14CView Fig); coronal suture conspicuous, deep ( Fig. 14BView Fig). Gena with conspicuous longitudinal sulcus near compound eye ( Fig. 14BView Fig). Clypeus light yellow, four times wider than high, with basal margin concave, lateral and apical margins convex ( Fig. 14C, DView Fig). Area between clypeus and labrum thin, inconspicuous ( Fig. 14C, DView Fig). Labrum light yellow, symmetrical ( Fig.14C, DView Fig). Antenna with all antennomeres longer than wide; flagellomere light brown; antennal socket white, with deep concavity ( Fig.14B, CView Fig). Compound eye globose, white with black spots ( Fig. 14B, CView Fig).

Thorax. Pro- and meso-notum with white spots ( Fig. 14BView Fig). Pronotum with small rounded sulcus next to basal margin; with two parallel arched carinae in medial third and apical third; apical margin light brown with black spots ( Fig. 14A, BView Fig). Mesonotum 1.5 times longer than pronotum, with longitudinal medial carina ( Fig. 14A, BView Fig). Metanotum with light brown spots ( Fig. 14AView Fig). Coxopleurite smooth, gray, with white spots. Mesothoracic epimeron subtriangular, light grey; episternum granulated, gray. Metathoracic pleural region smooth, shiny, dark grey. Thoracic sterna light yellow. Pro-, meso- and meta-basisternum with longitudinal medial light brown spot. Meso- and meta-sternum with conspicuous longitudinal medial sulcus and apical furca. Metasternum shiny.

Legs. Anterior leg dorsally and ventrally gray. Anterior femur approximately six times longer than wide, dorsally with light green spots, two parallel longitudinal carinae; ventrally smooth; anteriorly and posteriorly with small setae. Mid leg dorsally and ventrally with small setae; anteriorly light yellow; posteriorly black with light brown and white spots. Mid femur posterodorsally with nine spines. Mid tibia posteriorly with white spots at median and apical third. Posterior leg anteriorly light yellow, smooth; posteriorly gray, with light brown spots, eight spines at posterior margin.

Wings. Tegmina thin, concolor with terga, with light yellow and translucid veins, oblong apex ( Fig. 14A, EView Fig). Radial vein subdivided in Radial anterior and posterior at apical third; Radial anterior short, five times shorter than Radial posterior, pointing towards costal margin; Radial posterior almost reaching apex of tegmina ( Fig. 14EView Fig). Medial vein subdivided in Medial anterior and posterior near tegmina base; Medial anterior subdivided in Medial anterior 1 and 2 right before half tegmina length; Medial anterior 1 and 2 nearly straight; almost touching each other ( Fig. 14EView Fig). Cubital vein slightly curved ( Fig. 14EView Fig) Posterior wing with light brown veins ( Fig. 14AView Fig).

Abdomen. Abdominal terga dark brown. Terga 1-7 longer than wide ( Fig. 14AView Fig). Terga 3-6 gradually reducing in length ( Fig. 14AView Fig). Tergum 7 dorsally and laterally rectangular, laterally longer than high. Tergum 8 dorsally rectangular, 1.2 times wider than long ( Fig.15AView Fig). Terga 8-9 laterally trapezoidal, higher than long. Tergum 9 dorsally rectangular, 1.4 times wider than long ( Fig. 15AView Fig). Tergum 10 with anterior and lateral bases deeply convex, apical margin sinuous, with two conspicuous emarginations, medially acute ( Fig. 15AView Fig). Cercus cylindrical, lanceolate, with long setae ( Fig. 15A-CView Fig). Abdominal sterna light yellow, with small setae, and median dark brown stripe in sterna 1-7 ( Fig. 15BView Fig). Sterna 1-5 longer than wide. Sternum 6 rectangular,1.5 times longer than wide ( Fig. 15BView Fig). Sternum 7 rectangular, 1.3 times wider than long ( Fig. 15BView Fig). Sternum 8 rectangular, 1.2 times wider than long ( Fig. 15BView Fig). Subgenital plate dome-like in shape, medio-apically slightly emarginated ( Fig. 15BView Fig). Vomer dark brown, densely sclerotized, with oblong apex; shape of inverted chalice ( Fig. 15CView Fig).

Genitalia. Basal pouch widened, long, semi-ellipsoid ( Fig. 16View Fig). Dorsal left sclerite sinuous, basally widened, gradually narrowing medially, located closely but not attached to dorsal-wall of genitalia ( Fig. 16View Fig). Internal sclerite Y-shaped, located at ventral lobe ( Fig. 16View Fig). Ventral lobe larger than dorsal lobe, with conspicuous flagellum; subdivided in upper and lower lobule; having two finger-like projections at distal most portion of lower lobule; having one bifid finger-like projection medially at upper lobule.

Measurements (mm.). Body length 32.0; dorsal head length 2.0; pronotum 2.2; mesonotum 2.9; anterior femur 8.1; anterior tibia 5.0; mid femur 4.7; mid tibia 2.4; posterior femur 9.4; posterior tibia 7.2.

Holotype condition. Anterior right leg lost. Mid and posterior leg glued to a label and pinned alongside type. Left posterior wing damaged in costal area. Left antenna broken.

Geographical record. Brazil, Pernambuco: Recife.

Remarks. Di. leukommatos  sp. nov. is differentiated from all other Dinelytron  species due to its white compound eye. The genitalia of Di. leukommatos  sp. nov. can be differentiated from those of Di. trimaculatus  sp. nov. by the shape of basal pouch, which is semiellipsoid in Di. leukommatos  sp. nov. and shaped like a shield in Di. trimaculatus  sp. nov.