Dinelytron leukommatos, 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 : 48-50

publication ID

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

DOI

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

persistent identifier

https://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-C View Fig .

Examined material. Holotype _ ( Fig. 9A-C View 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, C View Fig ). All antennomeres longer than wide ( Fig. 14A, B View Fig ). Area between clypeus and labrum thin, inconspicuous ( Fig. 14C, D View 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. 14E View 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. 14E View Fig ). Subgenital plate dome-like shaped ( Fig. 15B View Fig ). Vomer with oblong apex, shaped as inverted chalice ( Fig. 15C View Fig ). In dorsal view ( Fig. 16 View 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. 14A View Fig ). Head. Frontal suture inconspicuous, forming an inconspicuous triangular light-yellow sulcus ( Fig. 14C View Fig ); coronal suture conspicuous, deep ( Fig. 14B View Fig ). Gena with conspicuous longitudinal sulcus near compound eye ( Fig. 14B View Fig ). Clypeus light yellow, four times wider than high, with basal margin concave, lateral and apical margins convex ( Fig. 14C, D View Fig ). Area between clypeus and labrum thin, inconspicuous ( Fig. 14C, D View Fig ). Labrum light yellow, symmetrical ( Fig.14C, D View Fig ). Antenna with all antennomeres longer than wide; flagellomere light brown; antennal socket white, with deep concavity ( Fig.14B, C View Fig ). Compound eye globose, white with black spots ( Fig. 14B, C View Fig ).

Thorax. Pro- and meso-notum with white spots ( Fig. 14B View 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, B View Fig ). Mesonotum 1.5 times longer than pronotum, with longitudinal medial carina ( Fig. 14A, B View Fig ). Metanotum with light brown spots ( Fig. 14A View 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, E View 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. 14E View 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. 14E View Fig ). Cubital vein slightly curved ( Fig. 14E View Fig ) Posterior wing with light brown veins ( Fig. 14A View Fig ).

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

Genitalia. Basal pouch widened, long, semi-ellipsoid ( Fig. 16 View Fig ). Dorsal left sclerite sinuous, basally widened, gradually narrowing medially, located closely but not attached to dorsal-wall of genitalia ( Fig. 16 View Fig ). Internal sclerite Y-shaped, located at ventral lobe ( Fig. 16 View 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.

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Phasmida

Family

Prisopodidae

Genus

Dinelytron