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.

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.

MACN

Museo Argentino de Ciencias Naturales Bernardino Rivadavia

USNM

Smithsonian Institution, National Museum of Natural History

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hemiptera

Family

Anthocoridae

Genus

Dilasia

GBIF Dataset (for parent article) Darwin Core Archive (for parent article) View in SIBiLS Plain XML RDF