Diagnose of the nominal subgenus of Edessa and description of the E. sexdens group (Heteroptera, Pentatomidae, Edessinae) Author Mendonça, Maria Thayane Da Silva Author Silva, Valéria Juliete Da 0000-0002-1845-5228 valeriajuliete@hotmail.com Author Fernandes, José Antônio Marin text Zootaxa 2023 2023-02-14 5240 1 1 63 http://dx.doi.org/10.11646/zootaxa.5240.1.1 journal article 256481 10.11646/zootaxa.5240.1.1 4d650293-3f9a-4bbe-9530-204a3b09ef8b 1175-5326 7639547 2FE467C1-EAC2-4E90-B673-CCE2CCA93C1D Edessa (E.) bella Fernandes & Silva, 2015 ( Figs. 2 , 24 C,D , 31 A ) Edessa bella Fernandes et al ., 2015: 513 . Holotype and paratypes : see Fernandes et al. 2015 . The original description and comments were presented in Fernandes et al. (2015) . Here are photographs of the holotype and a plate with photographs of the male and female external genitalia, as the original description only includes hand-drawn drawings. FIGURE 2. A–G. Edessa ( E. ) bella Fernandes & Silva, 2015 : A–E, pygophore in dorsal, dorsolateral, ventral, posterior and posterolateral views, respectively; F, genital plates; G, metasternal process. Scale 1 mm. Additional material. COSTA RICA , Heredia : 2♁, Biol. Sta. La Selva , 31-VIII-1998 , C. W. & L. B. O’Brien ( JEE ) ; 1♀ , 5km of Puerto Viejo La Selva Biol. Station , 9-X-2009 ( NMPC ) ; 1♀ , 5km of Puerto Viejo La Selva Biol. Station , 2-XI-2004 ( NMPC ) . Diagnose. See Fernandes et al. (2015) . Complementary description: Humeral angles as long as wide ( Fig. 24 C ); humeral angle black spot restricted to the distal part of the angle in dorsal and ventral views ( Fig. 24 C,D ). Connexival segments with concavities partially covered by black spots; rounded spots in ventral view ( Fig. 24 C,D ). Ventral surface. Dark stripe of the propleuron covering 2/3 of the width of the sclerite ( Fig. 24 D ). Legs with tibiae and tarsi darker than the rest ( Fig. 24 D ). Abdomen with spine of third segment rounded ( Fig. 2 G ). Intersegmental areas black, not reaching ventral spots of connexivum ( Fig. 24 D ). Pseudosutures concolorous with surface ( Fig. 24 D ). Male genitalia, dorsal side of the pygophore with a suffused brown area occupying 2/3 of the surface ( Fig. 2 A,B,E ). Superior process of genital cup continuing ventrally in a high crenulated carina, ending in a small dentiform projection ( Fig. 2 B,E ). Anterior half of proctiger brown ( Fig. 2 A,B,D,E ). Female genitalia, laterotergites VIII with two small dark spots on outer lateral margins ( Fig. 2 F ). Comments. This species is unique in the subgenus due to color pattern of the humeral angle which is orange and black ( Fig. 24 C,D ). The other species of the subgenus that resembles E. (E.) bella is E. (E.) lewisi . Both have a similar distribution ( Figs. 31 A , 32 A,B ) and size of the body ( Figs. 24 C,D , 27 C,D ), but the former has the connexival segments with dark spots and corial veins concolorous ( Fig. 24 C ) and the later has the connexival segments without spots and corial veins creamy ( Fig. 27 C ), clearly contrasting with the color of the corium ( Fig. 27 C ). Distribution ( Fig. 31 A ). See Fernandes et al. (2015) .