Nyctonympha sinjaevi, Santos-Silva & Botero, 2017

Santos-Silva, Antonio & Botero, Juan Pablo, 2017, Four new species of Nyctonympha Thomson, 1868 (Coleoptera, Cerambycidae, Lamiinae), European Journal of Taxonomy 332, pp. 1-16 : 3-6

Nyctonympha sinjaevi sp. nov.

urn:lsid:zoobank.org:act:814134AA-C411-403F-80B5-145ED7BD6827

Figs 1–4

Differential diagnosis

Depending on the angle of light, most of the pubescence appears distinctly golden or somewhat greenish.

Nyctonympha sinjaevi sp. nov. differs from N. cribrata Thomson, 1868 as follows: body wider; distance between antennal tubercles wider; distance between upper eye lobes smaller (slightly wider than 1.5 times width of one lobe); distal antennomeres more slender and longer; pronotal and elytral punctation finer (distinctly sparser on pronotum); sutural elytral apex rounded. In N. cribrata (see photograph of the holotype in Bezark 2016) the body is slender, the distance between antennal tubercles is narrower, the distance between upper eye lobes is larger (distinctly wider than 1.5 times width of one lobe), the distal antennomeres are thicker and shorter, the pronotal and elytral punctation is coarser (distinctly denser on pronotum), and the sutural elytral apex is projected.

Etymology

The specific epithet refers to Victor Sinjaev, one of the collectors of the holotype.

Type material

Holotype

COLOMBIA: ♀, Boyacá, road from Otanche to Puerto Boyacá, 05º44′10″ N, 74º13′04″ W, 685 m, 10–16 Feb. 2016, V. Sinjaev and V. Zaritzki leg. ( MZSP).

Description

Dimensions (mm). Total length: 15.50; prothoracic length: 2.90; anterior prothoracic width: 2.75; posterior prothoracic width: 2.90; widest prothoracic width: 3.00; humeral width: 3.70; elytral length: 11.60.

Female

Integument dark-brown, almost black; mouthparts reddish-brown except palpi brown with only basal and distal areas reddish-brown; base of antennomeres IV–IX yellowish (this area larger ventrally on IV–VI, mainly on IV); antennomere X yellowish on basal half (this area slightly longer ventrally); antennomere XI yellowish on basal ⅔.

HEAD. Frons ( Fig. 4 ) coarsely, sparsely punctate; with abundant, very short, yellowish-ochraceous pubescence (more golden depending on angle of light), not obscuring integument, interspersed with long, erect, sparse, yellowish setae laterally. Area between antennal tubercles and middle of upper eye lobes slightly depressed centrally, moderately finely and abundantly punctate (punctures as on frons); pubescence as on frons centrally, slightly longer and more yellowish close to eyes. Remaining surface of vertex finely, sparsely punctate, mainly centrally; pubescence as on frons. Area behind upper eye lobes with band of yellowish pubescence close to eye (widened toward lower eye lobe), shorter, yellowishochraceous close to prothorax; with moderately long, erect, yellowish setae close to eye. Area behind lower eye lobe distinctly depressed close to prothoracic margin; moderately finely, abundantly punctate close to eye; with yellowish pubescence, not obscuring integument. Genae with punctures as on frons, sparser toward frons, smooth toward apex; with yellowish pubescence toward ventral side, shorter, yellowish-ochraceous toward frons. Antennal tubercles with pubescence as on frons, but slightly denser; punctures as on frons on frontal base, absent on remaining surface. Coronal suture distinct from clypeus to prothorax. Submentum with short, yellowish pubescence. Postclypeus with yellowish pubescence, interspersed with long, yellowish setae directed forward. Labrum convex, finely and moderately abundantly punctate; with short, moderately sparse, decumbent, yellowish setae interspersed with long, erect, yellowish setae directed forward, distinctly more abundant toward apex. Mandibles longitudinally sulcate on basal half (sulcus narrowed toward apex); with short, decumbent, yellow setae on basal half, distinctly more abundant basally, interspersed with long, erect, yellowish, sparse setae; distal half glabrous. Distance between upper eye lobes 0.45 times length of scape; distance between lower eye lobes in frontal view 1.25 times length of scape. Antennae 1.6 times elytral length, reaching elytral apex before middle of antennomere IX. Antennal segments with short, decumbent, yellowish pubescence, not obscuring integument; scape clavate, distinctly enlarged on inner side after basal quarter; antennomeres III–XI with short, erect, sparse, yellowish setae dorsally, gradually, more abundant toward distal segments; antennomeres III–XI with long, erect, yellowish setae ventrally (distinctly shorter, sparser toward distal segments); antennal formula (ratio) based on antennomere III: scape = 0.62; pedicel = 0.18; IV = 1.41; V = 1.19; VI = 0.98; VII = 0.73; VIII = 0.62; IX = 0.54; X = 0.52; XI = 0.60.

THORAX. Prothorax cylindrical, slightly wider than long (1.05 times), moderately finely and sparsely punctate on sides and pronotum (punctures similar in size to those on frons); sides sub-parallel, with transverse gibbosity near distal margin at area closer to pronotum; with short, decumbent, yellowishochraceous pubescence (more yellowish on some areas), not obscuring integument, interspersed with long, erect, sparse, yellowish setae. Pronotum centrally with feebly elevated, narrow, longitudinal carina; sides with small, blunt tubercle placed slightly before middle; with short, decumbent, abundant, yellowish-ochraceous pubescence, not obscuring integument, more yellowish, basally and laterally. Prosternum moderately finely punctate, slightly more abundant laterally; with short, decumbent, abundant yellowish pubescence, not obscuring integument. Prosternal process moderately finely, abundantly punctate; with short, sub-erect, abundant, yellowish setae. Mesosternum distinctly depressed on wider central area; finely, shallowly and sparsely punctate on depressed region, smooth laterally; with short, decumbent, yellowish-ochraceous pubescence not obscuring integument. Mesosternal process moderately finely, sparsely punctate (punctures as on pronotum); with yellowish-ochraceous pubescence (except glabrous distal lobes) interspersed with long, erect, yellowish setae; apex distinctly emarginate centrally, laterally with small, but distinct lobe. Mesepisternum moderately finely and abundantly punctate; with decumbent, abundant, yellowish pubescence, partially obscuring integument. Mesepimeron finely, sparsely punctate (punctures slightly finer), shallower than on mesepisternum; pubescence as on mesepisternum. Metepisternum finely, sparsely punctate; with yellowish-ochraceous pubescence. Metasternum coarsely, moderately sparsely punctate; with, short, abundant, yellowish pubescence, partially obscuring integument (mainly laterally), interspersed with long, erect, sparse, yellowish setae. Scutellum with yellow pubescence, except on narrow, longitudinal, glabrous area.

ELYTRA. Moderately finely, abundantly punctate on basal third (coarser laterally), gradually finer, sparser toward apex; very finely, longitudinally sulcate; with abundant, yellowish pubescence on each area between sulci, somewhat sparser inside of sulci; apex strongly obliquely truncate (slightly concave; with small projection near sutural angle on right elytron), making outer angle distinctly projected, with sutural angle rounded.

LEGS. Femora with yellowish pubescence, not obscuring integument, except glabrous areas surrounding each fine, sparse puncture (less distinct on metafemora).

ABDOMEN. With yellowish pubescence, not obscuring integument (more yellowish laterally), except on glabrous areas surrounding each fine, sparse puncture (more abundant laterally); ventrite V with central longitudinal groove, widened from base to apex; apex of ventrite V truncate, slightly widely emarginate centrally.

Male

Unknown.

Figures

Figs 1–8. – 1–4. Nyctonympha sinjaevi sp. nov., holotype, ♀. 1. Dorsal habitus. 2. Ventral habitus. 3. Lateral habitus. 4. Head, frontal view. – 5–8. Nyctonympha antonkozlovi sp. nov., holotype, ♂. 5. Head, frontal view. 6. Dorsal habitus. 7. Ventral habitus. 8. Lateral habitus.