Edessa electa Walker, 1868

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 : 18-20

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.7639872
persistent identifier	https://treatment.plazi.org/id/03B487C0-FFDB-2502-FF47-C4BCFA10FABB
treatment provided by	Plazi
scientific name	Edessa electa Walker, 1868
status

Treatment

( Figs. 5 View FIGURE 5 , 25 C,D View FIGURE 25 , 32 A,B View FIGURE 32 )

Edessa electa Walker, 1868: 445 : Lethierry & Severin, 1893: 190; Kirkaldy, 1909: 157; Silva et al., 2018: 420 View Cited Treatment .

Edessa inclyta Walker, 1868: 445 ; Distant, 1880: 150: Lethierry & Severin, 1893: 191; Kirkaldy, 1909: 157; Silva et al., 2018: 420–421 View Cited Treatment . syn. nov.

Edessa fuscidorsata Distant, 1881: 89 ; Reuter 1881: 234; Lethierry & Severin, 1893: 190; Kirkaldy, 1909: 157. syn. nov.

Edessa gnu Breddin, 1905: 27 ; Kirkaldy, 1909: 158; Silva et al., 2018: 420 View Cited Treatment . syn. nov.

Edessa electa . Holotype female. Amazon region [Braz.] ( BMNH). Examined.

Edessa fuscidorsata . Lectotype male. Panama (Boucard) ( BMNH). Examined. Here designated.

Edessa fuscidorsata . Paralectotypes. 2 females. Colombia, Bogota (Signoret collection) ( NHRM) .

Edessa gnu . Lectotype female. Amazonas. Óbidos, leg. Rolle (SDEI). Designated by Gaedike (1971:83, by use of “ Holotypus ”). Examined.

Edessa inclyta . Lectotype male. Tapayoz [Tapajós, Pará] ( BMNH). Examined. Here designated.

Edessa inclyta . Paralectotype female. Same data ( BMNH) .

Material examined. BRAZIL: 1♀, Brazil ( NMPC); Amazonas: 1♁, Manaus, Tarumã, 25-X-1977, J. Becker leg. ( Edessa fuscidorsata Distant, 1881 , Comp. W. type, Fernandes, JAM 1999; Edessa inclyta Walker, 1868 , Comp. W. type, Fernandes, JAM 1999) ( MNRJ); Pará: 1♁, Óbidos ( MPEG); Rondônia: 1♁, Fazenda Rancho Grande, 4–16-XI-1997, J. E. Eger ( JEE); Mato Grosso: 1♀, Diamantino, Faz. S. João, III-1979, O. Rappa & A. Domingos ( Edessa gnu Breddin, 1905 , Comp. W. type, Fernandes JAM 1999; Edessa inclyta Walker, 1868 Comp. W. type Fernandes, JAM 1999; Edessa electa Walker 1868 , Comp. W. type Fernandes JAM 1999) ( MNRJ).

Measurements (n= 5). Total length: 20.6–25.2; head length: 1.6–2.4; head width: 3.6–4.0; pronotum length: 4.1–5.0; pronotum width: 14.1–15.7; scutellum length: 9.4–11.3; scutellum width: 7.5–8.7; abdominal width: 11.3– 14.2; length antennomers: I: 1.0–1.0; II: 1.8–2.3; III: 2.0–2.3; IV: 4.0–5.6; V: 3.8.

Diagnosis. Specimens large (20.6–25.2 mm). Dorsal surface green ( Fig. 25 C View FIGURE 25 ). Ventral surface dark yellow to orange with transversal brown lines on thorax and abdomen ( Fig. 25 D View FIGURE 25 ). Antennae reddish brown ( Fig. 25 D View FIGURE 25 ). Pronotum with punctures brown ( Fig. 25 C View FIGURE 25 ); anterolateral margin and cicatrices with brown punctures ( Fig. 25 C View FIGURE 25 ). Humeral angles short (1,5 times wider than long) ( Fig. 25 C View FIGURE 25 ), apices black ( Fig. 25 C View FIGURE 25 ); humeral angle black spot restricted to the angle in dorsal and ventral views ( Fig. 25 C,D View FIGURE 25 ). Scutellum with punctures brown ( Fig. 25 C View FIGURE 25 ), apex not reach end of corium ( Fig. 25 C View FIGURE 25 ). Corium with all veins concolorous with surface ( Fig. 25 C View FIGURE 25 ). Posterolateral angles of connexivum with apices black ( Fig. 25 C View FIGURE 25 ); connexival segments with concavities almost entirely covered by subrectangular brown spots and separated by a large yellow median spot ( Fig. 25 C View FIGURE 25 ), spots extending ventrally, subrectangular ( Fig. 25 D View FIGURE 25 ). Ventral surface. Thorax with brown stripes ( Fig. 25 D View FIGURE 25 ); dark stripe of the propleuron covering 2/3 of the width of the sclerite ( Fig. 25 D View FIGURE 25 ). Evaporatorium concolorous with thorax ( Fig. 25 D View FIGURE 25 ). Metasternal processs ( Fig. 5 G View FIGURE 5 ) with anterior apex straight and laterally well expanded, margin rounded; anterior face somewhat excavated; anterior bifurcation receiving fourth rostral segment. Legs with tibiae and tarsi darker than the rest ( Fig. 25 D View FIGURE 25 ). Abdomen with spine of third segment acuminated ( Fig. 5 G View FIGURE 5 ). Intersegmental areas brown reaching ventral spots of connexivum ( Fig. 25 D View FIGURE 25 ). Pseudosutures concolorous with surface ( Fig. 25 D View FIGURE 25 ). Median longitudinal brown band restricted to last segment ( Fig. 25 D View FIGURE 25 ). Trichobotria one in line with spiracle and the other laterad. Posterolateral angles of segment VII not reaching the level of apices of laterotergites IX in females ( Fig. 5 F View FIGURE 5 ). Male genitalia, posterolateral angle of pygophore very developed ( Fig. 5 A View FIGURE 5 ). Superior process of genital cup laminar, thick, subrectangular; flattened, grooved and coarse in posterior view, continuing ventrally in a crenulated high carina, ending in a dentiform projection ( Fig. 5 A,B,D,E View FIGURE 5 ). Ventral rim not setose ( Fig. 5 C View FIGURE 5 ). Female genitalia, laterotergites VIII with two small dark spots on outer lateral margins ( Fig. 5 F View FIGURE 5 ).

Male genitalia ( Fig. 5 A–E View FIGURE 5 ): Parameres with black margin; anterior lobe rounded and subrectangular; dorsal lobe triangular, little, and rounded; posterior lobe subrectangular and rounded ( Fig. 5 D,E View FIGURE 5 ). Proctiger with subelliptical posterior face ( Fig. 5 D,E View FIGURE 5 ). Ventral rim with expansions little developed, rounded, concolorous with surface, the expansions not reaching beyond apices of posterolateral angles ( Fig. 5 C View FIGURE 5 ).

Female genitalia: Valvifers VIII with dark punctures; inner margins contiguous, with brown band and divergent; distal margin with brown band and arched. Laterotergites IX with apices acuminate passing the sclerite uniting laterotergites VIII ( Fig. 5 F View FIGURE 5 ).

Comments. The Edessa (E.) electa is very similar to E. (E.) nigroangulata . Both species can be separated by the ventral side of the abdomen with intersegmental stripes narrow and brown and pseudosutures concolorous with abdomen in E. (E.) electa ( Fig. 25 D View FIGURE 25 ) (intersegmental stripes wide and black and pseudosutures brown in E. (E.) nigroangulata — Fig. 28 F View FIGURE 28 ). The pygophore of E. (E.) electa ( Fig. 5 A View FIGURE 5 ) shows the posterolateral angle more acute than in E. (E.) nigroangulata ( Fig. 17 A View FIGURE 17 ). Also, laterotergites VIII and IX have a distal sharp spine in E. (E.) electa ( Fig. 5 F View FIGURE 5 ) and a truncate apex in E. (E.) nigroangulata ( Fig. 17 F View FIGURE 17 ). Furthermore, E. (E.) electa ( Fig. 32 A,B View FIGURE 32 ) can be found in South America and Panamá and E. (E.) nigroangulata ( Fig. 30 A,B View FIGURE 30 ) can be found from Costa Rica to Mexico. Possibly Reuter’s mention of E. (E.) fuscidorsata to Mexico refers to E. (E.) nigroangulata .