Dilasia neotropicalis Carpintero 2014, n. sp.
Creators: name: Carpintero, Diego Leonardo
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Anthocoridae
Dilasia
Dilasia neotropicalis

description: Dilasia neotropicalis n. sp.
(Fig. 92)
Diagnosis: Characterized by its homogeneously dark dorsal coloration, the long labium, that reaches the midcoxae and by the occurrence of brachypterous forms.
Description: Measurements, see Table IV. Male: Dorsal view: General coloration homogeneous dark brown with labium, legs, and abdomen paler. Setae dorsally medium-sized and being of a more homogeneous size centrally area than on margins. Head: Smooth, prolonged anteriorly from the base of antennae; eyes small, interocular space wide (Fig. 125 in female); antennal segment II thick, and longer than head. Antennal segments (I:II:III:IV) 1: 2.3: 1.9: 1.8. Labium reaching midcoxae. Thorax: Pronotum small, with lateral margins straight, anterior margin rounded; posterior margin slightly concave; anterior lobe smooth, posterior lobe strongly rugose (Fig. 126). Mesosternum and metasternum not sulcate medially; the latter prolonged posteriorly (Fig. 128). Foretibiae armed with spines; forefemora unarmed. Hemelytra smooth (Fig. 127). Abdomen: Hairs on dorsal surface short and restricted to outer margins. Copulatory spines short, very thick and densely arranged (Fig. 124). Genitalia: After returning specimens to USNM, I lost the pygophore of the sole male I had retained. However, I could study some secondary structures on abdomen. Female: Similar to male in coloration and measurements. Genitalia (Fig. 129) with parietovaginal gland present (Fig. 131), seventh sternite with punctures centrally (Fig. 130). Brachypterous forms present. Antennal segments (I:II:III:IV) 1: 2.5: 2.1: 2.0.
Distribution: Argentina, Brazil, Guyana, Peru. (Fig. 49).
Material examined: Holotype ARGENTINA: ♀ Misiones, P. N. Iguazú, (Carpintero). MACN; Paratypes ♀ same locality, XI-1990 Carpintero. MACN; ♀ same locality, (at light), X-1980, Carpintero, (slide-mounted). MACN; ♀ Entre Rios, Concordia, I-1980. MACN; BRAZIL: ♂ Santa Catarina, Nova Teutonia, 13-III-1951, F. Plaumann. USNM; ♀ same locality, 17-V-1951. USNM; ♂ same locality, 2-VIII-1952. (slide-mounted) MACN; ♀ same locality 26-VIII-1952. USNM; 2♂ same locality, 23/ 24-X-1952. USNM; ♀ same locality, 31-X-1952. USNM; ♂ same locality, IV-1953. USNM; 6♂, 6♀ same locality, V-1953. USNM; ♂ 4♀ same locality, VI-1953. USNM; ♂ same locality, 23-VI-1955. USNM; ♂ same locality, 8-VII-1955. USNM; 2♂ same locality, 24-VIII- 1955. USNM; ♂ same locality, 1-IX-1955. USNM; ♂ same locality, 5-X-1955. USNM; ♀ same locality, 6-X-1955. USNM; 2♀ same locality, 9-X-1955. USNM; ♂ 2♀ same locality, 27º11’S 52º23’W, VI-1958, ex litter, Brit. Mus. 1959-604. BMNH; GUYANA: ♀ Demerara Soweyo, Gdf. Camp., 50km SW of Georgetown, at sheet, 150 Watt Tungsten light, 27/ 30-IX-1951, S. H. Martin coll. B.M. 1951-182. BMNH; PERU: ♀ (brachycere), Cusco, Quebradas Salineras, 3500m (above sea level), B. V. & J. S. Ridout, B. M. 1972-55, 9-VIII-1972. BMNH.
Etymology: The specific name refers to the widespread distribution of this new species.
Discussion: This species belongs to the fuscula group together with D. reuteri, D. unicolor, D. microps and D. carvalhoi as may be seen by the shape of head and pronotum; however, it may be easily distinguished from them by the length of labium (reaching the midcoxae). Presence of a brachypterous specimen can be understood as an adaptation to living near a salt mine 3500 meters above sea level.
description: Published as part of Carpintero, Diego Leonardo, 2014, Western Hemisphere Lasiochilinae (Hemiptera: Heteroptera: Anthocoridae) with comments on some extralimital species and some considerations on suprageneric relationships, pp. 1-87 in Zootaxa 3871 (1) on pages 32-34, DOI: 10.11646/zootaxa.3871.1.1, http://zenodo.org/record/4947859