Perissomerus machadoi, Martins, Ubirajara R., Galileo, Maria Helena M. & Santos-Silva, Antonio, 2016

Martins, Ubirajara R., Galileo, Maria Helena M. & Santos-Silva, Antonio, 2016, Five new species, one new genus, two synonymies, and new distributional records in Cerambycidae (Coleoptera), Zootaxa 4078 (1), pp. 320-333 : 323-324

Neoibidionini Monné, 2012

Perissomerus machadoi sp. nov. ( Figures 4–6 , 11 )

Coloration. Integument black as follow: most of dorsal surface of head, mandibles, scape, pedicel, most of antennomere III; dark-brown: part of antennomere III, antennomeres IV–XI, most of basal fourth of elytra, peduncle of profemora, apex of femora, tibiae, tarsi; dark reddish-brown: part of vertex of head, ventral side of head, anterior fifth of pronotum, most of elytra; reddish-brown: most of prothorax, peduncle of meso- and metafemora (margins blackish), part of urosternite I, urosternites II–V; light reddish-brown: irregular, slightly conspicuous area before middle of elytra (between basal fourth and middle, not reaching suture nor epipleura) most meso- and metasternum, metepisterna, most of femoral club.

Head. Frons flat; with curved line of coarse punctures on each side of coronal suture, from near clypeus to area between antennal tubercles; vertex coarsely, sparsely punctate, distinctly more abundant towards anterior edge of prothorax and lateral sides; area behind upper ocular eyes coarsely, abundantly punctate, mainly near prothoracic edge; area behind inferior ocular eyes shining, very finely striate, with sparse coarse punctures close to eyes, coarsely, abundantly punctate close to prothoracic edge. Frons and vertex glabrous. Clypeus laterally with long setae. Labrum with long setae. Coronal suture distinct from clypeus to area between eyes and prothorax. Submentum depressed, coarsely, sparsely punctate; with long, sparse setae (laterally notably long). Antennal tubercles coarsely, sparsely punctate; apex distinct projected, moderately acute. Distance between superior ocular lobes equal to 0.55 times length of scape; distance between inferior ocular lobes, in frontal view, equal to 0.85 times length of scape. Mandible laterally, with long, sparse setae. Antennae as long as 2.1 times elytral length; reach elytral apex at distal third of antennomere VIII; scape dorsally with longitudinal sulcus on basal half; antennomeres III–XI with long, sparse setae (mainly on inner side); antennal formula based on antennomere III: scape = 0.54; pedicel = 0.18; IV = 0.91; V = 0.94; VI = 0.95; VII = 0.91; VIII = 0.79; IX = 0.75; X = 0.67; XI = 0.60; XII = 0.44.

Thorax. Pronotum with five tubercles on disc: two on basal third, oblique, elevate; two slight after basal half, very elevate, conical; one between the four lateral, longitudinal, slightly elevate on base, more conspicuous near conical tubercles; finely, sparsely punctate; with very few setae. Basal lateral side of prothorax with a distinct oblique keel, from near procoxal cavity to lateral of pronotum, accompanied by a narrow sulcus; anterior lateral side with oblique keel, less distinct than anterior one, also accompanied by a narrow sulcus. Anterior half of prosternum finely, transversely striates; lateral basal half finely pubescent, central area almost glabrous. Prosternal process, centrally narrowed; apex distinctly expanded, cordiform; basal half centrally longitudinally carinate (low and narrow carinae). Distal third of mesosternal process with large lobe at each side; apex deeply emarginate. Metasternum laterally microsculptured, finely punctate, pubescent; punctures and pubescence distinctly sparser towards middle. Elytra with triangular elevation at base, narrowed from anterior margin to apex of basal fourth, not reaching humerus; on the elevation, sparse granules from which emerges moderately long setae; from humeri to middle, line of granules from which emerges short setae (granules smaller towards middle), becoming punctures between middle and apex (each puncture with setae); from outer side of basal elevation to apex, line of small granules with setae; from elevation to apex, near suture, line of small granules with setae; from middle to apex, between epipleura and line of granules starting at humerus, line of sparse setae; apex obliquely truncate. Abdomen. Urosternites laterally pubescent, remaining surface with short, moderately abundant setae, mixed by long setae. Legs. Profemora with rare long setae; meso- and metafemora with long, sparse setae; apices of mesofemora with rounded lobe; apices of metafemora with triangular lobe; metatarsomere I about as long as 1.1 times length of II+III.

Type material. Holotype female from PARAGUAY, Alto Paraguay: “Ea. Campo Grande” (19º46’51.1”S, 59º46’51.5”W; light trap), 30.XI.2002, Di Iorio leg. ( MZSP).

Dimensions in mm (female). Total length, 14.3; length of prothorax at center, 2.8; anterior width of prothorax, 2.0; posterior width of prothorax, 2.0; humeral width, 2.7; elytral length, 9.1.

Etymology. The species is named for Angelo Barbosa Monteiro Machado (Brazilian Odonatologist) on the occasion of his 80th birthday.

Remarks. Perissomerus machadoi sp. nov. differs from all other species of the genus by the anterior tubercles of pronotum ( Fig. 11 ) which are notably elevated (slightly elevated in the other species). Using this character, it is possible to include the new species in a new couplet in the key by Martins & Galileo (2007) (couplet “1” translated):

1’. Anterior tubercles of pronotum notably elevated. Paraguay..................................... P. machadoi sp. nov. - Anterior tubercles of pronotum slightly elevated............................................................. 1 1(1’). Elytra with anterior half orangish or reddish, and apical half black, separated by whitish macula or band................. 2 - Elytra reddish or yellowish, except, sometimes, small basal and apical portion, which may be reddish................... 3

Figures

FIGURES 1 – 9. Habitus of new species of Cerambycidae. 1 – 3. Drycothaea vulcanica sp. nov., holotype male: 1. dorsal view; 2. ventral view; 3. lateral view; 4 – 6. Perissomerus machadoi sp. nov., holotype female: 4. dorsal view; 5. ventral view; 6. lateral view; 7 – 9. Cacostola carinata sp. nov., holotype female: 7. dorsal view; 8. ventral view; 9. lateral view.

FIGURES 10 – 16. Head in frontal view and right metatarsus of new species of Cerambycidae. 10. Drycothaea vulcanica sp. nov., holotype male; 11. Perissomerus machadoi sp. nov., holotype female; 12. Cacostola carinata sp. nov., holotype female; 13 – 14. Ypomacena monnei sp. nov. paratype females; 15. Ypomacena gibbosa sp. nov., holotype female; 16. Ypomacena monnei sp. nov. paratype male.