Dilasia crassicornis, 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 : 23-24

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.5121947

persistent identifier

https://treatment.plazi.org/id/894D87D0-8628-FF8F-FF1C-FB6AFDDEFE97

treatment provided by

Felipe

scientific name

Dilasia crassicornis
status

sp. nov.

Dilasia crassicornis n. sp.

( Fig. 46 View FIGURES 43–47 )

Diagnosis: Characterized by the presence of a prominence beneath the paramere and the long, thick second antennal segment.

Description: Measurements, see Table IV. Male: Dorsal view: General coloration dark brown with extreme base of corion, small spot on inner margin of cuneal fracture, labium and legs paler. Setae dorsally long, suberected. Head: Smooth, prolonged anteriorly from base of antennae; eyes small, interocular space wide ( Fig. 60 View FIGURES 60–72 ); antennal segment II thick, slightly longer than head. Antennal segments (I:II:III:IV) 1: 3: 2.5: 2.4. Thorax: Pronotum small, with lateral margins almost straight, the anterior margin rounded, posterior margin slightly concave. Anterior lobe smooth, posterior lobe rugose ( Fig. 61 View FIGURES 60–72 ). Mesosternum and metasternum not sulcate medially, the latter one prolonged posteriorly ( Fig. 66 View FIGURES 60–72 ). Foretibiae armed with spines ( Fig. 62 View FIGURES 60–72 ); forefemora unarmed, pads well developed ( Fig. 63 View FIGURES 60–72 ). Foretrochanters with characteristic spines ( Fig. 64 View FIGURES 60–72 ). Hemelytra smooth ( Fig. 65 View FIGURES 60–72 ). Abdomen: Hairs on dorsal surface short and restricted to outer margins. Characteristic copulatory spines on the left margin of sternite VI ( Fig. 67 View FIGURES 60–72 ). Pygophore ( Fig. 68 View FIGURES 60–72 ) with characteristic punctures on dorsal central and subapical area ( Fig. 70 View FIGURES 60–72 ). Genitalia with left paramere elongate, linear, slightly widened subapically and not acute apically ( Fig. 71 View FIGURES 60–72 ). Small but noticeable prominence beneath the paramere ( Fig. 72 View FIGURES 60–72 ). Aedeagus armed with two lateral and subapical feather-like structures ( Fig. 69 View FIGURES 60–72 ). Female: Similar to male in coloration and dimensions.

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

Material examined: Holotype PERU: ♀ Ucayali, Kirigueti , (at light), VII-2004, J. Williams 83º07’08’’W – 11º38’13’’S. MACN GoogleMaps ; Paratypes, ♂ (slide-mounted) and ♀ same data as Holotype MACN GoogleMaps ; ♂ (slidemounted) same data as Holotype, 24-II.2004. MACN GoogleMaps ; ♂ Cusco, Nuevo Mundo, Base Pluspetrol , (at light), VII- 2004, J. Williams, 73º08’30’’W – 11º33’02’’S. MACN GoogleMaps .

Etymology: The specific name refers to shape of second antennal segment that is thick and slightly longer than head.

Discussion: This species belongs to the D. galateae group (together with D. similis and D. gracilicornis ) but can be distinguished from them by the shape of the left paramere with its short, basal “wing” and by the presence of a small prominence beneath the paramere.

MACN

Museo Argentino de Ciencias Naturales Bernardino Rivadavia

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hemiptera

Family

Anthocoridae

Genus

Dilasia

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