New species of Cerambycidae (Coleoptera) from South and Central America

Abstract Three new species are described: Tropidion birai (Cerambycinae, Neoibidionini) from Bolivia; Chrysoprasis birai (Cerambycinae, Heteropsini) from Panama; and Recchia nearnsi (Lamiinae, Aerenicini) from Bolivia. The new species are included in amended versions of previously published keys to species of each genus.


Introduction
Currently Tropidion Thomson, 1867 encompasses 75 species, distributed mainly in South America, with only four species occurring in Central America (Monné 2015a). Martins and Galileo (2007) revised the South American species of Tropidion and provided a key to the species of that region. Accordingly, Neoibidionini is divided in three subtribes: Ibidionina Thomson, 1860(currently, Neoibidionina Monné, 2012, Compsina Martins &Galileo, 2007 andTropidina Martins &Galileo, 2007. Compsina has the procoxal cavities closed behind, while in Tropidina and Neoibidionina they are open behind. Tropidion is the type genus of Tropidina, a subtribe that differs from Neoibidionina by the scape piriform, usually with basal sulcus, and by the antennomeres III-V pedicel and antennomeres dark-brown, gradually lighter toward distal antennomeres (but with apex of antennomeres blackish); two large, yellowish maculae on each elytron; most of peduncle of femora dark-brown; most femoral club orangish-brown; apex of femoral club brownish; tibiae dark-brown, except for reddish area inside of longitudinal sulcus; ventrites orangish-brown.
Head. Frons punctate-rugose; with short, moderately abundant setae, not obliterating integument. Area between antennal tubercles and eyes microsculptured, interspersed with coarse, sparse punctures. Area between posterior ocular edge and prothorax moderately coarsely, abundantly punctate (punctures denser near prothorax). Area behind lower eye lobes with punctures slightly distinct; with long, sparse setae close to eye; area under lower eye lobes with short, moderately abundant, yellowishwhite setae. Area between anterior emargination of eyes and antennal fovea with short, dense yellowish-white pubescence. Genae moderately coarsely, abundantly punctate; with short setae interspersed with moderately long, sparse setae. Coronal suture distinct from clypeus to level of posterior ocular edge. Antennal tubercles notably projected upward, in frontal view, horn-like. Distance between upper eye lobes 0.55 times length of scape; distance between lower eye lobes 1.2 times length of scape in ventral view, 0.8 times length of scape in frontal view. Submentum not well-delimited, transversely striate, moderately coarsely, abundantly punctate; with short, moderately abundantly setae (not obliterating integument), interspersed with long, sparse setae. Antennae as long as 3.0 times elytral length; reaching elytral apex at basal quarter of antennomere VII; scape dorsally with distinct sulcus from base to about middle, with short, sparse setae, interspersed with very long setae; antennomere III dorsally longitudinally sulcate, pubescent, with fringe of long setae on inner lateral side; remaining antennomeres pubescent, with fringe of setae on inner lateral side gradually sparser; antennal formula (ratio) based on antennomere III: scape = 0.52; pedicel= 0.18; IV = 0.94; V = 1.11; VI = 1.15; VII = 1.02; VIII = 1.02; IX = 1.02; X = 0.82; XI = 1.39.
Thorax. Prothorax cylindrical, 1.7 times as long as wide; basal and distal sixth somewhat enlarged. Pronotum finely, sparsely punctate, except for basal sixth, where punctures are slightly coarser, distinctly denser; with five tubercles: one, subrounded, on each side of basal third; one, subrounded, on each side just after middle; one, subconical, on center; one each side, with wide band with yellowish-white pubescence, wider at base, that does not reach anterior margin; remaining surface with short, very sparse setae, interspersed on distal half by long setae. Prothorax laterally glabrous, finely, sparsely punctate, except for anterior sixth with transverse, fine striae. Prosternum finely, transversely striate on anterior half; each side of basal half with band with yellowish-white pubescence, divergent, narrowed from procoxal cavity to just after middle. Prosternal process longitudinally sulcate (mainly on distal half), pubescent; distal portion subcordiform. Mesosternum without tubercle, almost glabrous centrally, pubescent laterally (pubescence not obliterating integument). Mesepisterna and mesepimera densely pubescent (obliterating integument). Metasternum laterally and posteriorly pubescent (not obliterating integument); remaining surface with moderately sparse pubescence, except for glabrous central area near mesocoxal cavities. Me- tepisterna densely pubescent (partially obliterating integument). Scutellum densely pubescent. Elytra sparsely punctate, nearly all with a moderately long, yellowish setae (on circum-scutellar region punctures are blackish, part of them asperate-like); apical margin concave, with long spine at outer angle and projected at sutural angle. Legs. Femora clavate, very finely pubescent, with long, sparse setae; apex rounded on both sides. Tibiae longitudinally sulcate on both sides. Metatarsomere I as long as II-III together.
Abdomen. Ventrites I-IV pubescent laterally, centrally with short, sparse setae, interspersed with some long setae. Ventrite V with short, very sparse setae on basal third; distal two-thirds pubescent, interspersed with long setae; apex truncate, slightly emarginate.
Etymology. The new species is named after the late Ubirajara Ribeiro Martins de Souza (Bira).
Remarks. Tropidion birai sp. n. is similar to Tropidion centrale (Bates, 1872), a species very variable in color, but differs mainly by the pronotum with longitudinal bands of pubescence and with distinct tubercles. Tropidion centrale has pubescence on pronotum only on narrow transverse basal band, and does not have distinct tubercles on pronotum. From T. abditum Martins, 1968 by the pronotum with bands of pubescence (not pubescent in T. abditum), and by the apex of elytra with distinct spine at outer angle (unarmed in T. abditum). It differs from T. bituberculatum (Audinet-Serville, 1834) by the antennal tubercles acute at apex (not so in T. bituberculatum), by the inner side of antennomere III with abundant and long setae (short and sparse in T. bituberculatum), and by the central tubercle of pronotum very distinct (slightly distinct in T. bituberculatum). It can be separated from T. buriti Martins & Galileo, 2012 by the pronotum with distinct tubercles (slightly conspicuous in T. buriti) and with bands of pubescence (without bands of pubescence in T. buriti), and by the apex of elytra with distinct spine at outer angle (unarmed in T. buriti). From T. carinicolle (Bates, 1872), T. intermedium (Martins, 1962), and T. flavum (Martins, 1962) it differs mainly by the presence of yellowish maculae on elytra (absent in those species). Tropidion birai differs from T. festivum (Martins, 1962) and T. validum (Martins, 1962), by the basal antennomeres distinctly dark (uniformly reddish in those species), by the elytral maculae distinctly large, mainly the posterior. It differs from T. jolyi Martins & Galileo, 2012 by the antennomere III distinctly carinate in male (not so in T. jolyi), and by the presence of bands of pubescence on pronotum (absent in T. jolyi). It differs from T. hermione (Thomson, 1867) mainly by the pronotum with bands of pubescence (absent in T. hermione). From T. mirabile Martins, 1971 andT. praecipuum Martins, 1971 it differs by the posterior yellowish band of elytra oblique to the suture (transverse in those species).
Tropidion birai can be included in the alternative of couplet "70", from Martins and Galileo (2007)  Description. Female. Integument metallic green with golden reflex; elytra darker, without golden reflex, with narrow violaceous band on base and along suture (slightly wider on basal two-thirds of suture), and wide violaceous band laterally (less conspicuous depending on angle of incidence of light; anteclypeus most reddish; apex of labrum reddish; ventrites cupreous, with violaceous and green reflexes, more distinctly violaceous on ventrite V; scape with distinct violaceous reflexes, more distinct depending on angle of incidence of light; antennomeres dark violaceous with some green reflexes (distal antennomeres more opaque); legs violaceous with green reflexes. Head. Frons moderately finely, abundantly, confluently punctate, with short, decumbent, abundant setae (very slightly conspicuous). Coronal suture well-marked from clypeus to anterior level of eyes. Postclypeus with microsculptured, subtriangular area at base (interspersed with some coarse punctures); remaining surface moderately finely, abundantly punctate; punctate area with very short, slightly conspicuous setae, and one long seta on each side. Anteclypeus narrow. Labrum smooth at base, moderately finely, abundantly punctate on remaining surface; on punctate area with short, moderately abundant setae (mainly at distal third), interspersed with long setae. Antennal tubercles with sculpture as on frons. Area between antennal tubercles and upper eye lobes transversely sulcate. Vertex with sculpture as on frons. Area behind upper eye lobes with sculpture as on frons, gradually slightly sparser towards behind lower eye lobes (somewhat striate close to prothoracic margin). Genae moderately finely, abundantly punctate, punctures finer toward apex. Gulamentum transversely striate on narrow area closer to thorax (centrally smooth), coarsely vermiculate-punctate on large area closer to maxilla; this latter with short, moderately abundant setae, interspersed with long setae. Distance between upper eye lobes 0.85 times length of scape; distance between lower eye lobes, in frontal view, 1.05 length of scape. Antennae as long as 1.5 times elytral length; reaching elytral apex at middle of antennomere XI; scape coarsely, densely punctate, with long, thick, sparse, dark setae; antennomeres III-VI with short, but distinct spine at inner apex; antennomeres VI-X with distal outer distal angle projected; antennomere XI somewhat divided at distal third, almost forming twelfth segment; antennal formula (ratio) based on antennomere III: scape = 1.84; pedicel = 0.15; IV = 0.56; V = 0.64; VI = 0.66; VII = 0.66; VIII = 0.58; IX = 0.50; X = 0.43; XI = 0.61.
Etymology. The new species is named after the late Ubirajara Ribeiro Martins de Souza (Bira).
Remarks. Chrysoprasis birai sp. n. differs from C. quadrimaculata Gounelle, 1913, andC. suturalis Lameere, 1884, mainly by the prothorax wider than long (about as long as wide in those species), and by the spine of the antennomeres III-VI distinctly short (very distinct in both species). It differs from C. viridis Fisher, 1944 mainly by the sides of prothorax not uniformly rounded from anterior to basal margin (rounded in C. viridis), and by the metasternum finely punctate ("coarsely foveolate-punctate" in C. viridis, according to Fisher 1944). It can be separated from C. aurata Aurivillius, 1910 by the sides of the prothorax not uniformly rounded (rounded in C. aurata), by the punctures on pronotum and metasternum finer (coarse in C. aurata).
All other species of Chrysoprasis occurring in Panama belong to the Group hypocrita: C. festiva Audinet-Serville, 1834;C. hirtula White, 1853;C. hypocrita Erichson, 1847;C. rotundicollis Bates, 1870;and C. seticornis Bates, 1880. As the limits between the Groups chalybea and aurigena are narrow, and some species can be included in both, we are including C. birai in the key for both groups.
In the key to species of the Group aurigena the new species can be included in the alternative of couplet "3", from Napp and Martins (1999)  In the key to species of the Group chalybea the new species can be included in the alternative of couplet "21", from Napp and Martins (1997)  Description. Female. Integument most orange-brown, with dense, brownish-yellow pubescence.
Head. Frons trapezoidal, abundantly, moderately coarsely punctate; with dense pubescence interspersed with long setae, sparser near clypeus. Clypeus smooth centrally, coarsely punctate laterally. Labrum coarsely punctate. Antennal tubercles finely punctate, with yellowish-orange pubescence. Dorsal surface between antennal tubercles and before upper eye lobes sparsely punctate. Area between middle of upper eye lobes and prothorax, and behind upper eye lobes to about middle of lower eye lobes with dense, yellowishwhite pubescence; around margins of eyes with narrow band with yellowish-white pubescence, except for area close to gena. Genae short, sparsely pubescent. Gula glabrous, shiny, coarsely punctate laterally. Coronal suture distinct from clypeus to anterior edge of prothorax. Upper eye lobes with nine rows of ommatidia; distance between upper eye lobes 0.3 times length of scape; distance between lower eye lobes, in frontal view, 0.6 times length of scape. Antennae as long as 1.4 times elytral length, reaching elytral apex at apical end of antennomere IX; orange-brown, with yellowish-orange pubescence; scape densely punctate; antennomeres IV-XI brown on distal portion (this area darker, longer toward distal antennomeres, covering from apical half to apical three-fourths of segment); antennomeres with moderately abundant, short setae on ventral side, interspersed with black, coarse setae (mainly on dark area), denser on antennomeres X and XI; antennal formula (ratio) based on antennomere III: scape = 1.09; pedicel =.0.13; IV =1.0; V = 0.93; VI = 0.86; VII = 0.81; VIII = 0.74; IX =.0.69; X = 0.58; XI = 0,55.
Thorax. Prothorax quadrangular; sparsely, coarsely punctate. Pronotum with pubescence concealing integument; with two narrow, longitudinal, dense, bands with yellowish-white pubescence laterally; with narrow, longitudinal, smooth, shiny area centrally; with band with yellowish-white pubescence centrally, from base to apex, involving smooth area. Prosternum, center of mesosternum, with dense, yellowish pubescence; sides of mesosternum, inner half of metepisterna, center of metasternum with yellowish-brown pubescence (less conspicuous depending on angle of incidence of light). Lateral sides of prosternum, mesosternum and metasternum moderately coarse, sparsely punctate (punctures partially obliterated by pubescence). Elytra elongate, 5.2 times prothorax length, 3.2 times humeral width; integument concealed under pubescence; apical third with three longitudinal bands with dense, yellowish-white pubescence, close each other, together forming a semicircle: innermost short, narrow; central one wider, slightly longer than innermost, with irregular lateral edges; outer- most slightly curved, elongate, 1.8 times length of central band, starting near apex of latter, almost reaching elytral apex; elytral apex narrowed, without apical spine. Legs. Segments pubescent, with long, abundant setae, denser, longer on tibiae. Meso-and metafemora more brownish toward apex; metatarsomere I as long as II-III together.
Abdomen. Ventrites I-IV with brownish pubescence, except for wide, yellowishwhite band laterally and two narrow, yellowish-white pubescent bands on each side of center (not distinct depending on angle of incidence of light).
Dimensions in mm (holotype female Remarks. Recchia nearnsi sp. n. is similar to R. ludibriosa Lane, 1966 but differs as follows: antennae most orange-brown, with short, sparse pubescence; antennomeres IV-XI darker on apical region (more distinct after VII); pronotum with longitudinal, yellowish-white pubescent band; sides of mesosternum, and inner half of metepisterna with yellowish-brown pubescence; elytral length 5.2 times pronotal length; elytra with longitudinal bands with yellowish-white pubescence only at apical third. In R. ludibriosa the antennae are reddish-brown, with antennomere XI black, and the antennomeres have dense, elongate pubescence, the pronotum is uniformly pubescent, without yellowish-white pubescent bands, the sides of mesosternum and inner half of mesepisterna have dense, long, dark-brown pubescence, the elytral length is 4.0 times the pronotal length, and the apical two-thirds of elytra have oblique whitish bands. It differs from R. ravida Martins & Galileo, 1985 by elytra with dense yellowish-brown pubescence, obliterating integument, and tree longitudinal yellowish-white pubescent bands at apical third of elytra. In R. ravida the elytral pubescence is slightly sparser, not obliterating the integument, and has grayish-white pubescent bands on circum-scutellar region and oblique bands on distal two-thirds. Recchia nearnsi differs from R. fallaciosa Lane, 1966 andR. veruta Lane, 1966 mainly by the elytral apex not spiny (distinctly spiny in both species), and by the basal half of the elytra without bands of pubescence (present in both species).