Hesychotypa antonkozloui Nearns and Nascimento, 2019

Nearns, Eugenio H. & Nascimento, Francisco E. de. L., 2019, A new genus and seven new species of Onciderini Thomson, 1860 (Coleoptera: Cerambycidae: Lamiinae) from Central and South America, Insecta Mundi 688, pp. 1-16 : 4

Hesychotypa antonkozloui Nearns and Nascimento , sp. nov.

( Figures 1 e–h)

Description. Male. Length 14.7 mm (measured from vertex to elytral apices), width 5.3 mm (measured across humeri). Habitus as in Fig. 1f . Integument mostly reddish brown, lighter or darker (almost black) in some areas; postclypeus and distal area of labrum yellowish; apex of labial and maxillary palpomeres yellowish-brown; scape slightly lighter apically, flagellomeres gradually darker from about posterior half.

Head. Frons slightly longer than wide, subquadrate; surface finely, sparsely punctate, more densely toward clypeus; with abundant yellowish pubescence, obscuring integument near eyes. Vertex impunctate; with yellowish pubescence as on frons. Area behind eye lobes with sparse yellowish pubescence, not obscuring integument. Antennal tubercles divergently elevate. Median groove distinct from clypeus to prothoracic margin. Genae about one-third of lower eye lobe length; with sparse yellowish pubescence. Distance between upper eye lobes about twice greatest width of upper eye lobe. Antennae (missing antennomeres VIII–XI in left antenna, VI–XI in right antenna) reaching elytral apex at apex of antennomere VI; scape moderately clavate, with sparse yellowish pubescence; pedicel with sparse whitish yellow pubescence, slightly denser than on scape; antennomere III sinuous; antennomeres III–IV with erect yellowish setae on inner side, remaining surface with yellowish pubescence (denser toward distal half), not obscuring integument; remaining antennomeres with dense yellowish-white pubescence in basal half, gradually yellowish toward apex; antennal formula based on antennomere III: scape = 0.53; II = 0.10; IV = 0.82; V = 0.62; VI = 0.62; VII = 0.54.

Thorax. Prothorax parallel-sided, about 1.5 times as wide as long (including tubercles); sides with tubercle about basal third, conical and blunt at apex. Pronotum with basal and distal sulci distinct; anterior and posterior quarters transversely demarcated by depression; pronotal disk (between transverse depressions) slightly elevated; with two tubercles anteriorly and one median posteriorly; with some smaller irregular tubercles alongside dorsal tubercles; surface with sparse yellowish pubescence. Prosternum and mesoventrite with light yellowish pubescence. Prosternal process triangle-shaped; with sparse light yellowish-brown pubescence. Mesepisternum sulcate along its length; with moderately dense pubescence, not obscuring integument. Mesosternal process longitudinally depressed; with angular margin, apically about as wide as two-thirds of mesocoxal cavity. Metepisternum and metasternum with sparse light yellowish pubescence. Scutellum about 1.5 times wider than long, with sparse yellowishwhite pubescence. Elytra. About twice humeral width, 4.5 times as long as prothoracic length; slightly convergent at basal 2/3; apical third slightly widened; with shallow, oblique, wide depression from near humerus to near suture at basal quarter; area near scutellum with some granulate punctures; longitudinally elevated centrally at anterior third of each elytron; coarsely, moderately abundantly punctate in basal third, punctures gradually sparser toward apex; humerus forming obtuse tubercle; with moderately dense yellowish pubescence, not obscuring integument. Legs. Coxae with sparse yellowish pubescence; procoxae with prominent anterior tubercle at inner side; mesocoxae with small tubercle posteriorly at inner side. Femora with sparse light yellowish pubescence; profemora with irregular wrinkles in basal third. Tibiae with pubescence mostly yellowish, with some brownish areas, especially distally. Metatarsomere I about 0.7 times II–III together (missing protarsomeres and tarsomeres of left leg). Abdomen. Ventrites with yellowish pubescence, not obscuring integument (except small spots sideways of ventrites I–IV); apex of ventrite V notched.

Female. Unknown.

Type material. Holotype ( Fig. 1 e–h) male from ECUADOR, Pichincha (Camping Tombo, 0º01′22″ S 78º38′48″ W, 1,969 m), 25.X.2011, Viktor Sinyaev col. ( MZSP).

Etymology. The new species is named in honor of Anton Olegovich Kozlov (Moscow, Russia), who sent and donated the holotype. The epithet is a noun in the genitive case.

Diagnosis and remarks. Hesychotypa antonkozloƲi sp. nov. is similar to H. punctata Martins, 1979 by the general body shape, punctures of the elytra (denser at basal third) and pubescence pattern. Through the study of the photograph of the H . punctata holotype (ZMHB) it is possible to differentiate the new species as follows ( H. punctata in parentheses): antennomeres III–V longer, together reaching the apical fifth of the elytra (reaching the apical third); sutural carina of the elytra present only at apical third (present in almost the entire suture). Additionally , the antennal tubercles are gradually divergent (abruptly elevated and modified in tubercle apically). Although both species were collected in Ecuador, H. antonkozloƲi was collected in Pichincha at 1,969 m, while H . punctata was collected in Balzapamba at about 2,877 m.

Figures

Figure 1. Two new species of Hesychotypa. a–d) Hesychotypa danileƲskyi sp. nov., holotype male: a) Dorsal habitus. b) Ventral habitus. c) Lateral habitus. d) Close-up of head. e–h) Hesychotypa antonkozloƲi sp. nov., holotype male: e) Close-up of head. f) Dorsal habitus. g) Ventral habitus. h) Lateral habitus.