Stenoeurilla aenescens (Stål), Stal

Brailovsky, Harry & Barrera, Ernesto, 2019, A revision of the Costa Rican species of Stenoeurilla Brailovsky & Barrera (Hemiptera: Heteroptera: Coreidae: Stenoscelideini), with the description of two new species, new distributional records, synonymical note, and key to the known species, Zootaxa 4550 (4), pp. 545-556 : 546

Stenoeurilla aenescens (Stål)

( Figs. 1 , 6 , 10 , 15 , 22 , 26 )

Stenoscelidea aenescens Stål, 1870: 154 .

Stenoscelidea prolixa Brailovsky, 1983: 322 –324, syn. nov.

General distribution. Originally described from Mexico and later cited from Costa Rica and Guatemala. COSTA RICA: Prov. Guanacaste, Hacienda Palo Verde and La Pacifica, 4 km NE from Cañas ( Stål 1870, Distant 1881 – 1892, Solomon & Schaefer 1981, Brailovsky 1983).

Material examined. New records. COSTA RICA: 4 males, 1 female, Prov. Guanacaste, 14 km S Cañas , 26– 30-IX-1989, 1–15-IX-1990, 1–5-X-1990, 1–10-VII-1991, F. D. Parker ( AUEM, UNAM)

Stenoeurilla aenescens was originally described from Veracruz ( Mexico) based on at least one female specimen; later Distant (1881 –1890) recorded this species to Guatemala (Capetillo, San Geronimo, Las Mercedes, San Isidro and El Reposo) and added new localities from Mexico (Guerrero: Acahuizotla and Rincon; and Tabasco: Teapa). Solomon and Froeschner (1981) cited this species from Costa Rica (Guanacaste Province: Hacienda Palo Verde); and Packauskas (2010) summarizes the historical status of the species. Later Brailovsky and Barrera 2012, revised the generic complex Stenoscelidea Westwood 1842 and described a new genus Stenoeurilla , transferring to it the following species: S. aenescens ( Stål, 1870) , S. glabra ( Brailovsky, 1983) , S. hansoni ( Brailovsky & Barrera, 1997) , S. maya ( Brailovsky & Barrera, 1983) , S. mimica ( Brailovsky & Barrera, 1983) , S. pellucida ( Brailovsky & Barrera, 1997) , S. peruviana ( Brailovsky & Barrera, 1997) , and S. prolixa ( Brailovsky, 1983) .

Stenoeurilla prolixa ( Brailovsky 1983) was originally described from Costa Rica based on one female specimen that had diagnostic differences from S. aenescens ( Stål 1870) . Recently a large number of specimens from Mexico and Central America were examined along with a photograph of a syntype specimen of S. aenescens deposited in NHRS. After close examination of the color variation, structure, and allometry, we now consider the differences between the two to be insufficiently constant to merit recognition as a valid species and that they are conspecific, thus S. prolixa is regarded as a junior synonym.

Figures

FIGURES 1–5. Dorsal view of Stenoeurilla spp. 1, S. aenescens (Stål) (female). 2, S. hansoni (Brailovsky & Barrera) (male). 3, S. pellucida (Brailovsky & Barrera) (female). 4, S. herediana sp. nov. (male). 5, S. mesoamericana sp. nov. (male).

FIGURES 6–9. Dorsal abdominal segments of Stenoeurilla spp. 6, S. aenescens (Stål) (female). 7, S. hansoni (Brailovsky & Barrera) (male). 8, S. herediana sp. nov. (male). 9, S. mesoamericana sp. nov. (male).

FIGURES 10–14. Abdomen in lateral view of Stenoeurilla spp. 10, S. aenescens (Stål) (male). 11, S. hansoni (Brailovsky & Barrera) (male). 12, S. herediana sp. nov. (male). 13, S. mesoamericana sp. nov. (male). 14, S. pellucida (Brailovsky & Barrera) (female).

FIGURES 15–19. Hind tibiae of Stenoeurilla spp. 15, S. aenescens (Stål) (female). 16, S. hansoni (Brailovsky & Barrera) (male). 17, S. herediana sp. nov. (male). 18, S. mesoamericana sp. nov. (male). 19, S. pellucida (Brailovsky & Barrera) (female).

FIGURES 20–23. Male genital capsule of Stenoeurilla spp. 20, S. hansoni (Brailovsky & Barrera). 21, S. mesoamericana sp. nov. 22, S. aenescens (Stål). 23, S. herediana sp. nov.

FIGURES 24–27. Parameres of Stenoeurilla spp. 24, S. hansoni (Brailovsky & Barrera). 25, S. mesoamericana sp. nov. 26, S. aenescens (Stål). 27, S. herediana sp. nov.