Four new species of Cerambycidae (Coleoptera) from Paraguay

Abstract Four new species of Cerambycidae are described from Paraguay: Eranina tomentilla (Hemilophini); Mimasyngenes concolor (Desmiphorini); Recchia drechseli (Aerenicini); and Microibidion bimaculatum (Neoibidionini). The new species are included in known keys.


Four new species of Cerambycidae (Coleoptera) from Paraguay
Introduction Bates (1866) described Erana to include a single species: E. cincticornis Bates, 1866. Still in the 19th Century, Bates (1874Bates ( , 1881Bates ( , 1885 described nine other species in this genus. In the 20th Century, 14 species were described, and one was transferred to Erana. More recently, in this century, 12 new species were described. Monné (2005) proposed Eranina to replace Erana Bates, 1866, preoccupied by Erana Gray, 1840. Currently Eranina includes 36 species, distributed in North (Mexico), Central and South America. Martins and Galileo (2014) reviewed the 18 South American species and provided a key to them.
Mimasyngenes Breuning, 1950 includes 14 species, apparently occurring only in South America. A single species was recorded for Costa Rica (Mimasyngenes icuapara Galileo & Martins, 1996) by Swift et al. (2010), but Monné (2014) considered the record as doubtful: "Costa Rica ?, Brazil (São Paulo), Argentina (Misiones)." Clarke (2007) revised the species of Mimasyngenes occurring in Bolivia, and provided a key to the ten species known at that time. After the publication of that key, four new species were described in Mimasyngenes.
Recchia Lane, 1966 is a predominantly South American genus, with a single species also occurring in Central America: Recchia hirsuta (Bates, 1881). Currently Recchia includes 22 species. From those species, seven were transferred from Aerenica Dejean, 1835, of which two were originally described in Saperda Fabricius, 1775. Martins (1992) synonymized Trichohippopsides Breuning, 1980 with Recchia, and the type species of the former, T. albicans Breuning, 1980, with Recchia albicans (Guérin-Méneville, 1844. Martins and Galileo (1998) considered Coruparana Lane, 1966 as a new synonym of Recchia. Thus, two more species were added to Recchia. Microibidion Martins, 1962 is exclusively South American, and includes six species. The latest species was described from Bolivia 43 years ago. Martins (2009) revised the species of this genus and provided a key to them.

Material and methods
Photographs were taken with Canon EOS Rebel T3i DSLR camera, Canon MP-E 65mm f/2.8 1-5× macro lens, controlled by Zerene Stacker AutoMontage software.
The collection acronyms used in this study are as follows: Description. Integument black; the following parts orange: frons, most of clypeus, most of lateral side of mandibles, maxillary palpomeres I-III, base of maxillary palpomere IV, ventral side of head, area under lower eye lobes, base of antennomere III, base and nearly all ventral side of antennomere IV, base of antennomeres V-VII, large central "V-like" area on pronotum, parts of lateral side of prothorax, lateral longitu-dinal band on basal half of elytra (reaching lateral margin on basal fourth), basal twothirds of profemora, basal half of mesofemora, basal third of metafemora; the following brown-yellowish: vertex, about central two-fourths of dorsal side of antennomere III; parts of lateral side of prothorax; tarsal claws; brown longitudinal band on basal half of elytra, between orange band and black area; ventral side of scape dark-brown. Head. Frons transverse, coarse, abundantly punctate (most punctures obliterated by pubescence); pubescence yellow, dense, mixed with long, sparse setae. Coronal suture well-marked from clypeus to anterior edge of prothorax. Area between antennal tubercles depressed, coarse punctate; pubescence sparser than on anterior region of frons; laterally with long setae. Antennal tubercles with yellow pubescence on base, dark-brown on remaining surface; with long, abundant setae. Vertex with yellow, dense pubescence. Area behind lower eye lobes coarse, abundantly punctate; pubescence, moderately dense on narrow band close to eyes, very sparse towards anterior edge of prothorax. Genae with yellow pubescence, mixed by long, sparse setae. Distance between upper eye lobes equal to 0.2 times the length of scape; distance between lower eye lobes, in frontal view, equal to 0.6 times the length of scape. Antennae as long as 1.2 times the elytral length; almost reaching elytral apex; scape, pedicel and antennomere III with abundant, moderately long erect setae, mixed with also abundant very long setae throughout; antennomere IV with setae as on III, but sparser; antennomeres V-XI dorsally with sparse, moderately long setae, ventrally with very long, sparse setae; antennal formula based on antennomere III: scape = 0.77; pedicel = 0.14; IV = 0.44; V = 0.25; VI = 0.23; VII = 0.21; VIII = 0.21; IX = 0.19; X = 0.19; XI = 0.21.

MZSP
Thorax. Prothorax cylindrical, transverse. Pronotum moderately coarse, abundantly punctate; pubescence yellow on area with orange integument, directed towards center, forming elongated tuft; on each side of anterior half, spot of yellowish-white pubescence; remaining surface with very short, slightly conspicuous brownish-yellow pubescence; with long, sparse setae. Lateral sides of prothorax moderately coarse, abundant punctate; pubescence brownish-yellow, dense on areas with light integument, brown on areas with dark integument. Metasternum laterally pubescent, very sparsely pubescent towards middle. Elytra: coarse, abundantly punctate on basal half, gradually finer, sparser punctate towards apex; pubescence dense, very conspicuous on area with orange integument, dark-brown, very short on remaining surface; with moderately long, abundant erect setae throughout; apex individually rounded. Legs: femora pubescent, with long, moderately abundant setae (mainly ventrally).
Abdomen. Ventrites I-IV laterally pubescent, distinctly sparser towards center, interspersed with long, sparse setae. Ventrite V trapezoidal, 1.5 times as long as IV, with long sparse setae, distinctly denser near apex, laterally pubescent; apex rounded.   Etymology. Latin, tomentum = pubescence consisting of moderately long, soft, entangled hairs; illa = suffix, added to feminine nouns to denote a diminutive form. Relating to the hairy look of the species.
Remarks. Eranina tomentilla sp. n. differs from E. argentina (Bruch, 1911) as follows (comparison with syntype female deposited at MZSP): distance between upper eye lobes equal to 0.2 times the length of scape; setae on antennomere III distinctly more abundant; antennomere III 2.2 times longer than IV; basal integument of antennomeres V-VII orange. In E. argentina the distance between upper eye lobes is equal to 0.35 times length of scape, the setae on antennomere III are sparser (mainly the shorter ones), antennomere III is 1.7 times as long as IV, and antennomeres V-VII are entirely dark. It can be separated from females of E. porangaba (Galileo & Martins, 1998) by antennae not reaching elytral apex (surpassing in E. porangaba), and by antennomere III longer than twice length of IV (distinctly shorter than twice the length of IV in E. porangaba).
Eranina tomentilla can be included in the alternative of couplet "16", from Martins and Galileo (2014)  Description. Integument black, with labrum and palpi reddish-brown; pubescence white; setae dark-brown. Head. Frons transverse, coarse, moderately abundantly punctate; pubescence sparse, distinctly not obliterating integument, slightly more concentrated along coronal suture and margin of eyes; setae long, sparse. Sculpture and pubescence of vertex as on frons. Coronal suture marked from clypeus to anterior edge of prothorax. Area behind eyes with sparse pubescence. Genae with sparse pubescence towards clypeus, glabrous towards apex. Distance between upper eye lobes equal to 0.6 times the length of scape; distance between lower eye lobes, in frontal view, equal to 0.8 times the length of scape. Antennae as long as 1.3 times the elytral length; reaching elytral apex; antennal segments sparsely pubescent; scape, pedicel and antennomeres III-VII with sparse, very long setae throughout (ventrally longer and more abundant on antennomeres); antennomeres VIII-X with moderately long setae near apex; antennal formula based on antennomere III: scape = 0.96; pedicel = 0.33; IV = 1.08; V = 0.75; VI = 0.75; VII = 0.67; VIII = 0.58; IX = 0.46; X = 0.42; XI = 0.42.
Thorax. Prothorax transverse, distinctly wider between lateral tubercles and anterior margin. Pronotum coarse, deeply, abundantly punctate; pubescence sparse, slightly longer between lateral tubercles of prothorax and anterior margin; with long, sparse setae. Lateral sides of prothorax with sculpture, pubescence and setae as on pronotum; lateral tubercle spiny, curved upwards. Elytra: coarse, deeply, abundantly punctate (punctures aligned in rows); pubescence sparse, forming rows placed between rows of punctures; with long, sparse setae; lateral sides slightly expanded after middle; apex together rounded. Legs: Femora and tibiae with sparse pubescence, dorsally with long, sparse setae.
Abdomen. Ventrites pubescent. Ventrite V trapezoidal, 3.3 times as long as IV, depressed at center of distal third; apex concave. Remarks. Mimasyngenes concolor sp. n. is similar to M. icuapara Galileo & Martins, 1996, but differs mainly by the spiny lateral tubercle of prothorax being notably smaller, and by antennomere III shorter than IV. In M. icuapara the lateral tubercle of prothorax is distinctly longer and antennomere III is about as long as IV.
Head. Frons trapezoidal, microsculptured, moderately fine, abundantly punctate (mainly towards clypeus); pubescence abundant, yellowish-brown, not obliterating integument (slightly whitish on some areas); with long, abundant setae. Antennal tubercles microsculptured, sparse, finely punctate (punctures sparser towards apex); pubescence as on frons. Coronal suture distinct from clypeus to anterior edge of prothorax. Vertex moderately fine, abundantly punctate; pubescence somewhat denser than on frons. Area behind eyes densely pubescent from upper eye lobes to about middle of lower eye lobes; from middle of lower eye lobes to its apex with narrow band of pubescence close to eyes, and glabrous towards anterior edge of prothorax. Genae sparsely pubescent towards eyes, glabrous towards apex. Distance between upper eye lobes equal to 0.3 times the length of scape; distance between lower eye lobes, in frontal view, equal to 0.5 times the length of scape. Antennae as long as 1.9 times the elytral length; reaching elytral apex at base of antennomere VIII; scape and pedicel with long setae throughout; antennomere III with long, moderately abundant setae on ventral side, with moderately short, abundant setae on basal half of dorsal side; antennomeres IV-XI ventrally with long, sparse setae (sparser towards distal antennomeres); antennal formula based on antennomere III: scape = 1.40; pedicel = 0.21; IV = 0.88; V = 0.88; VI = 0.83; VII = 0.81; VIII = 0.74; IX = 0.71; X = 0.62; XI = 0.64.
Thorax. Prothorax cylindrical, slightly longer than wide; lateral sides distinctly narrower at basal third. Pronotum moderately coarse, abundantly punctate (most punctures obliterated by pubescence); pubescence yellowish-white, except for a large "V-like" central area and lateral sides with yellowish-brown pubescence; with long, sparse setae. Pubescence of lateral sides of prothorax yellowish-brown; pubescence close to pronotum, gradually more yellowish-white towards prosternum. Pro-and mesosternum mostly with dark-brown pubescence. Mesepisternum with dark-brown pubescence on half close to mesosternum, yellowish-white on half close to humerus. Mesepimeron with yellowish-white pubescence. Metepisternum and lateral sides of metasternum with dense, yellowish-white pubescence; remaining surface of metasternum with pubescence less dense. Elytra: coarse, abundantly punctate on basal third, gradually finer, sparser towards apex; pubescence yellowish-white (more yellowish on some areas), not forming distinct drawing; with long, sparse setae; apex individually rounded. Legs: pubescence on femora distinctly not obliterating integument.
Etymology. The species is named for Ulf Drechsel, collector of the holotype. Remarks. Recchia drechseli sp. n. differs from R. goiana Martins & Galileo, 1985 as follows: dorsal pubescence less compact; upper eye lobes wider (Fig. 10), largest width larger than basal width of scape; distance between upper eye lobes equal to about 2.3 times the largest width of one lobe. In R. goiana the dorsal pubescence is more compact, the upper eye lobes are narrower (Fig. 11), with largest width about as wide as basal width of scape, and the distance between upper eye lobes is equal to 3.0 times the largest width of one lobe. It differs from R. flaveola Martins & Galileo, 1985 mainly by the femora being darker (reddish in R. flaveola), and by the elytra without distinct contrasting areas of pubescence (present in R. flaveola).
Thorax. Prothorax narrower at base than anteriorly; with constriction at middle of basal half. Pronotum moderately coarse, sparsely punctate; disc with three