Dilasia neotropicalis, Carpintero, 2014

Carpintero, Diego Leonardo, 2014, Western Hemisphere Lasiochilinae (Hemiptera: Heteroptera: Anthocoridae) with comments on some extralimital species and some considerations on suprageneric relationships, Zootaxa 3871 (1), pp. 1-87 : 32-34

publication ID	https://doi.org/ 10.11646/zootaxa.3871.1.1
publication LSID	lsid:zoobank.org:pub:373BF217-8734-47A1-AF27-C16DFE48D1C9
DOI	https://doi.org/10.5281/zenodo.5121963
persistent identifier	https://treatment.plazi.org/id/894D87D0-8621-FFB9-FF1C-F8EEFCDCFC45
treatment provided by	Felipe
scientific name	Dilasia neotropicalis
status	sp. nov.

Treatment

Dilasia neotropicalis n. sp.

( Fig. 92 View FIGURES 86–94 )

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 View FIGURES 124–131 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 View FIGURES 124–131 ). Mesosternum and metasternum not sulcate medially; the latter prolonged posteriorly ( Fig. 128 View FIGURES 124–131 ). Foretibiae armed with spines; forefemora unarmed. Hemelytra smooth ( Fig. 127 View FIGURES 124–131 ). Abdomen: Hairs on dorsal surface short and restricted to outer margins. Copulatory spines short, very thick and densely arranged ( Fig. 124 View FIGURES 124–131 ). 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 View FIGURES 124–131 ) with parietovaginal gland present ( Fig. 131 View FIGURES 124–131 ), seventh sternite with punctures centrally ( Fig. 130 View FIGURES 124–131 ). Brachypterous forms present. Antennal segments (I:II:III:IV) 1: 2.5: 2.1: 2.0.

Distribution: Argentina, Brazil, Guyana, Peru. ( Fig. 49 View FIGURES 48–49 ).

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 GoogleMaps ; 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.