Edessa (E.) sexdens Fabricius, 1803

Mendonça, Maria Thayane Da Silva, Silva, Valéria Juliete Da & Fernandes, José Antônio Marin, 2023, Diagnose of the nominal subgenus of Edessa and description of the E. sexdens group (Heteroptera, Pentatomidae, Edessinae), Zootaxa 5240 (1), pp. 1-63 : 46-49

publication ID	https://doi.org/ 10.11646/zootaxa.5240.1.1
publication LSID	lsid:zoobank.org:pub:2FE467C1-EAC2-4E90-B673-CCE2CCA93C1D
DOI	https://doi.org/10.5281/zenodo.7639927
persistent identifier	https://treatment.plazi.org/id/03B487C0-FFE7-2521-FF47-C474FFF1FC37
treatment provided by	Plazi
scientific name	Edessa (E.) sexdens Fabricius, 1803
status

Treatment

( Figs. 20 View FIGURE 20 , 21 View FIGURE 21 , 29 C,D View FIGURE 29 , 30 A View FIGURE 30 )

Edessa sexdens Fabricius, 1803: 148 ; Stål, 1868: 36; Lethierry & Severin, 1893: 194; Kirkaldy, 1909: 164.

Edessa nigromarginata Distant, 1881: 392 : Kirkaldy, 1909: 161 syn. nov.

Edessa sexdens . Lectotype male. America Meridionali Smidt ( ZMUC). Examined by photos. ( Fig. 21 D View FIGURE 21 ) Paralectotypes. Same data. Two females ( ZMUK) and one male ( ZMUC) .

Edessa nigromarginata . Lectotype female. Jamaica ( NMI). Examined by photos.

Paralectotypes. Two females. same data ( BMNH). Examined .

Material examined. SURINAME, Paramaribo: 1♀, Paramaribo , 13-III-1962, V. Vreder leg. (Compared to the type —Fernandes JAM, 1999) ( RMNH) ; 1♁, Paramaribo, 26-X-1938, Geiiskes ( RMNH) ; Marowijne: 1♁ 1♀, Galibi , 9-XI-1948 ( RMNH) ; BRAZIL, Pará: 1♀, Mosqueiro, Belém, Gustavo Ruiz ( UFPA) .

Measurements (n= 4). Total length: 15.3–16.8; head length: 1.2–1.4; head width: 2.7–2.8; pronotum length: 3.0–3.2; pronotum width: 9.5–10.5; scutellum length: 7.7–8.5; scutellum width: 5.0–5.5; abdominal width: 8.1–8.7; length antennomers: I: 0.9–0.9; II: 1.0–1.0; III: 1.5–1.9; IV: 2.7–3.2; V: 3.0.

Diagnosis. Specimens large (15.3–16.8 mm). Dorsal surface olive green ( Figs. 21 A View FIGURE 21 , 29 C View FIGURE 29 ). Ventral surface dark yellow to brown with transversal black lines on thorax and abdomen ( Figs. 21 B View FIGURE 21 , 29 D View FIGURE 29 ). Antennae brown ( Figs. 21 A View FIGURE 21 , 29 C View FIGURE 29 ). Pronotum with punctures brown; anterolateral margin and cicatrices with black punctures ( Figs. 21 A View FIGURE 21 , 29 C View FIGURE 29 ). Humeral angles short (1,6 times wider than long) ( Figs. 21 A View FIGURE 21 , 29 C View FIGURE 29 ), apices concolorous with surface and not recurved ( Figs. 21 A View FIGURE 21 , 29 C View FIGURE 29 ). Scutellum with punctures brown ( Figs. 21 A View FIGURE 21 , 29 C View FIGURE 29 ); apex surpasses end of corium ( Figs. 21 A View FIGURE 21 , 29 C View FIGURE 29 ). Corium with all veins concolorous with surface ( Figs. 21 A View FIGURE 21 , 29 C View FIGURE 29 ). Posterolateral angles of connexivum with apices black ( Figs. 21 A View FIGURE 21 , 29 C View FIGURE 29 ); connexival segments with concavities almost entirely covered by rectangular black spots and separated by a large pale yellow median spot ( Figs. 21 A View FIGURE 21 , 29 C View FIGURE 29 ); spots extending ventrally, subrectangular ( Figs. 21 B View FIGURE 21 , 29 D View FIGURE 29 ). Ventral surface. Thorax with black stripes ( Figs. 21 B View FIGURE 21 , 29 D View FIGURE 29 ); dark stripe of the propleuron connected to the dark spot of the humeral angle ( Fig. 21 B View FIGURE 21 , 29 D View FIGURE 29 ). Proepisternum with dark stripe ( Fig. 21 B View FIGURE 21 , 29 D View FIGURE 29 ). Evaporatorium concolorous with thorax ( Fig. 21 B View FIGURE 21 , 29 D View FIGURE 29 ). Metasternal process ( Fig. 20 G View FIGURE 20 ) with anterior apex straight and laterally well expanded, margin acuminated; anterior face little excavated; anterior bifurcation receiving fourth rostral segment. Legs brown ( Fig. 21 B View FIGURE 21 , 29 D View FIGURE 29 ). Abdomen with spine of third segment acuminated ( Fig. 20 G View FIGURE 20 ). Intersegmental areas black, not reaching ventral spots of connexivum ( Fig. 21 B View FIGURE 21 , 29 D View FIGURE 29 ). Pseudosutures solid black, margin well-defined ( Figs. 21 B View FIGURE 21 , 29 D View FIGURE 29 ). Each segment with anterior and posterior white lines ( Fig. 21 B View FIGURE 21 ). Median longitudinal dark band incomplete in varying degrees ( Figs. 21 B View FIGURE 21 , 29 D View FIGURE 29 ). Trichobotria one in line with spiracle and the other laterad. Posterolateral angles of segment VII surpass the level of apices of laterotergites IX in females ( Fig. 20 F View FIGURE 20 ). Male genitalia, dorsal side of the pygophore with a suffused brown area occupying 1/3 of the surface ( Fig. 20 A,B View FIGURE 20 ). Posterolateral angle of the pygophore developed ( Fig. 20 A View FIGURE 20 ). Superior process of genital cup laminar, tumid, rectangular, thick, with a groove in posterolateral view; flattened and coarse in posterior view, continuing ventrally in a crenulated short carina ( Fig. 20 B,D,E View FIGURE 20 ). Ventral rim with lateral subdistal tuft of setae ( Fig. 21 C View FIGURE 21 ). Female genitalia, valvifers VIII with a small dentiform projection that protrudes into the valvifers IX ( Fig. 20 F View FIGURE 20 ). Laterotergites VIII with two small dark spots on outer lateral margins ( Fig. 20 F View FIGURE 20 ).

Male genitalia ( Figs. 20 A–E View FIGURE 20 , 21 C View FIGURE 21 ): Parameres with brown margin; anterior lobe little developed and rounded; dorsal lobe rounded with curved apex; posterior lobe rounded ( Fig. 20 B,D,E View FIGURE 20 , 21 C View FIGURE 21 ). Proctiger with subtriangular posterior face ( Figs. 20 D,E View FIGURE 20 , 21 C View FIGURE 21 ). Ventral rim with expansions little developed, rounded, concolorous with surface, the expansions not reaching beyond apices of posterolateral angles ( Fig. 20 C View FIGURE 20 ).

Female genitalia: Valvifers VIII with dark punctured; inner margins contiguous, with brown band and not divergent; distal margin forming distal U-shaped excavation, brown and arched. Laterotergites IX with apices acuminate passing the sclerite uniting laterotergites VIII ( Fig. 20 F View FIGURE 20 ).

Comments. The syntypes of Edessa sexdens were divided between the Kiel and Copenhagen museums, following a well-known division of Fabricius’ material. The lectotype designated here has an original blue label ( Fig. 21 D View FIGURE 21 ). Edessa (E.) sexdens resembles E. (E.) alces , E. (E.) congrua , and E. (E.) urus , but it can be separated from them by the black punctures in the cicatrices of pronotum ( Fig. 29 C View FIGURE 29 ) and the scutellum reaching or surpassing the level of the distal angle of the corium ( Fig. 29 C View FIGURE 29 ), while in the other species the scutellum clearly does not reach the end of the corium ( Fig. 24 A,E View FIGURE 24 ). See E. (E.) alces for additional comments.

Distribution ( Fig. 30 A View FIGURE 30 ): JAMAICA; SURINAME: Marowijne, Paramarinbo; BRAZIL: Pará.

ZMUC	Zoological Museum, University of Copenhagen
NMI	Bacteria collection of National Institute of Public Health, National Medicines Institute, Poland
RMNH	National Museum of Natural History, Naturalis

Copyright notice

No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.

Taxonomy

Kingdom	Animalia
Phylum	Arthropoda
Class	Insecta
Order	Hemiptera
Family	Pentatomidae
SubFamily	Edessinae
Genus	Edessa
SubGenus	Edessa