Dilasia gracilicornis, 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 : 26-27

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.5121952

persistent identifier

https://treatment.plazi.org/id/894D87D0-8627-FF82-FF1C-FF3FFDB7FECB

treatment provided by

Felipe

scientific name

Dilasia gracilicornis
status

sp. nov.

Dilasia gracilicornis n. sp.

( Fig. 47 View FIGURES 43–47 )

Diagnosis: Characterized by the long and narrow left paramere as well as the long and slender second antennal segment.

Description: Measurements, see Table IV. Male: Dorsal aspect: General coloration dark brown with the extreme base of corion, small spot at inner margin of cuneal fracture, labium, legs, and basal half of antennal segment II paler. Setae short dorsally and of a more homogeneous size centrally than on margins. Head: Smooth, slightly prolonged anteriorly from the base of antennae; eyes small, interocular space wider than eye width ( Fig. 79 View FIGURES 79–85 ); antennal segment II slender, gradually thickened apically, and longer than head. Antennal segments (I:II:III:IV) 1: 2.8: 2.5: 2.4. Thorax: Pronotum small, with lateral margins slightly sinuate. Anterior margins not rounded, posterior margin slightly concave. Anterior lobe smooth, posterior lobe strongly rugose. Mesosternum and metasternum not sulcate medially; the latter prolonged posteriorly ( Fig. 83 View FIGURES 79–85 ). Foretibiae armed with spines ( Fig. 80 View FIGURES 79–85 ); forefemora unarmed, pads medium-sized ( Fig. 81 View FIGURES 79–85 ). Hemelytra smooth ( Fig. 82 View FIGURES 79–85 ). Abdomen: Hairs on dorsal surface long and restricted to outer margins. Characteristic copulatory spines on the left margin of sternite VI ( Fig. 84 View FIGURES 79–85 ). Genitalia with left paramere long, slightly sinuate, not widened subapically and apically acute ( Fig. 85 View FIGURES 79–85 ); a short prominence beneath the paramere. Aedeagus not armed with two lateral and subapical feather-like structures. Female: Similar to male in coloration and measurements. Antennal segments (I:II:III:IV) 1: 2.5: 2.1: 1.8.

Distribution: Peru. ( Fig. 48 View FIGURES 48–49 )

Material examined: Holotype PERU: ♂ Ucayali, Kirigueti (at light), VII-2004, J. Williams, 73º07’08’’W – 11º38’17’’S. MACN GoogleMaps . Paratypes: 3 ♂ same data as for Holotype. MACN GoogleMaps ; ♂ same data (slide-mounted). MACN GoogleMaps ; 3 ♂, 1 ♀ Cusco, Cashiriari , 4–22-VII-2005 (at light), J. Williams, MACN ; 2 ♂ same data (slide-mounted). MACN .

Etymology: The specific name refers to the shape of second antennal segment long and slender.

Discussion: This species belongs to the D. galateae group (together with D. similis and D. crassicornis ) as demonstrated by its dorsal aspect, but may be distinguished from them by the proportionally very long and narrow left paramere and by the antennae.

MACN

Museo Argentino de Ciencias Naturales Bernardino Rivadavia

Kingdom

Plantae

Phylum

Tracheophyta

Class

Liliopsida

Order

Hemiptera

Family

Anthocoridae

Genus

Dilasia

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