Pachyforma rosacea, García & Vlasak, 2024

García, Kimberly & Vlasak, Josef, 2024, A new genus and species of Anisocerini (Coleoptera: Cerambycidae) from Ecuador, Zootaxa 5424 (5), pp. 595-600 : 598-599

Pachyforma rosacea sp. nov.

( Figs. 1–5 )

Description. Holotype female.

Integument dark brown, darker in some areas, clypeus and labrum light brown. Antennae reddish brown; antennomeres V–XI darker. Claws reddish brown. Body covered by short, decumbent setae, dense in some regions, forming irregular yellowish and pink patches. HEAD. Frons sparsely, coarsely punctate; with dense patches of yellowish setae. Area between antennal tubercles densely, coarsely punctate; with a few pink setae on area near tubercles and on vertex. Median groove distinct from frons to anterior margin of prothorax. Area between upper eye lobes sparsely, coarsely punctate; with patches of dense, decumbent yellowish setae centrally, and band of dense pink setae along eyes. Area behind upper eye lobes with abundant yellowish setae partially obscuring integument. Genae rugose; with dense decumbent setae, almost obscuring integument, yellow centrally and below eye lobes, pink close to frons. Distance between upper eye lobes about 0.30 times distance between outer margins of eyes; in ventral view, distance between lower eye lobes 0.57 times distance between outer margins of eyes. Antennae 1.7 times elytral length, reaching elytral apex at antennomere VII. Scape rugose; with sparse yellowish and brown setae interspersed. Pedicel densely, finely punctate; with sparse, short dark-brown setae. Antennomere III densely, finely punctate; with sparse, short yellowish-white setae, denser ventrally; apex dilated, covered with short, decumbent black setae. Antennomeres IV–XI densely, finely punctate, with inner margin of anterior half covered by white setae, this area becoming gradually shorter, longer on antennomere XI. Antennal formula (ratio) based on length of antennomere III: scape = 0.64; pedicel = 0.13; IV = 0.87; V = 0.55; VI = 0.40; VII = 0.33; VIII = 0.23; IX = 0.22; X = 0.19; XI = 0.15.

THORAX. Prothorax wider than long. Pronotum sparsely, coarsely punctate; covered by patches of yellowish setae, denser centrally, and sparse pink setae on sides. Lateral tubercles of prothorax covered by sparse yellowish setae. Prosternum slightly, transversely striate, with patches of short, decumbent white setae, yellowish on sides. Prosternal process wide, parallel-sided in middle, expanded on apex, with patches of short, decumbent white setae; width at narrowest point about 0.58 times width of procoxal cavity. Mesanepisternum and mesepimeron with patches of sparse yellowish-white setae, some pink setae on mesepimeron. Mesoventrite finely, transversely striate, with sparse, short, white setae. Mesoventral process slightly rugose, pubescence as on mesoventrite; emarginate at apex; width at narrowest point about 1.07 times width of mesocoxal cavity; apical width 1.34 times mesocoxal width. Metanepisternum with patches of sparse yellowish setae anteriorly, yellowish and pink posteriorly. Metaventrite smooth; with patches of sparse decumbent setae, white centrally, yellow laterally. Discrimen visible. Scutellum covered by short, decumbent yellowish setae, except glabrous medial band; posterior margin truncate, with sides rounded. Elytra densely, coarsely punctate on anterior half; with centro-basal gibbosities well elevated, forming strong, verrucose tubercles, blunt at apex; with small, irregular patches of dense yellowish or pink setae, with black setae interspersed on some areas, and several larger areas with patches of darker yellow and black setae. Apex of elytra rounded.

LEGS. Femora microscuptured; with whitish to yellowish-white setae on ventral face, yellowish and pink setae on dorsal face, pink setae concentrated near apex. Tibiae with sparse, fine punctures; covered by sparse setae, denser toward apex, yellowish white on ventral face, except black on apex, pink band dorsally at about middle, this band widest on metatibiae. Tarsomeres I–II covered by dense pink setae, remaining tarsomeres with sparse dark-brown setae.

ABDOMEN. Ventrites smooth; with short decumbent white setae, in patches or individually, yellow laterally. Ventrite 5 with patches of pink and yellowish setae interspersed on sides; apex truncate.

Type material. Holotype female from ECUADOR, Guayas: Manglar Churute , 100 m, 7.VIII.2021, J. Vlasak leg. ( MZSP).

Etymology

The species epithet comes from the Latin “ rosacea ” (of roses), referring to the pink-colored setae covering the body.

Measurements (in mm)

Holotype female: total length, 12.10; prothoracic length, 2.10; anterior prothoracic width, 2.90; posterior prothoracic width, 3.50; maximum prothoracic width, 4.10; humeral width, 5.05; elytral length, 8.10.

Figures

FIGURES 1–5. Pachyforma rosacea gen. nov., sp. nov. Holotype female. 1. Dorsal view; 2. Ventral view; 3. Lateral view; 4. Frontal view; 5. Details in of head and prothorax in oblique view.