Susuacanga boteroi Le Tirant and Santos-Silva, 2016

Tirant, Stéphane Le & Santos-Silva, Antonio, 2016, Two new Eburiini from Mexico (Coleoptera, Cerambycidae, Cerambycinae), Insecta Mundi 2016 (512), pp. 1-8 : 1-3

Susuacanga boteroi Le Tirant and Santos-Silva , new species

( Fig. 1–4 )

Holotype female. Color. Integument dark-brown, except for: four eburneous maculae on each elytron; yellowish apex of palpomeres. Pubescence and setae yellowish.

Head. Frons moderately finely, abundantly punctate between antennal tubercles and clypeus, punctures distinctly sparser, coarser, shallower toward longitudinal sulcus; longitudinal sulcus deep, gradually shallower toward tubercles between upper eye lobes; with deep, transverse sulcus close to clypeus; with short, moderately abundantly setae laterally interspersed with some long setae, glabrous inside longitudinal sulcus. Area between antennal tubercles and tubercles between upper eye lobes widely carinate (longitudinal sulcus inside this carina); lateral sides of carina moderately deeply sulcate; with band of moderately short setae laterally, connected with dense setae between eyes and antennal socket and pubescence behind upper eye lobes; lateral sides of carina with short, sparse setae. Area behind tubercle between upper eye lobes with semi-circular, deep sulcus. Vertex centrally smooth, opaque; moderately coarsely, shallowly, abundantly punctate laterally (including area behind upper eye lobes); smooth region glabrous; with wide band of pubescence from semi-circular sulcus to behind upper eye lobes (gradually narrower toward lateral side of head), interspersed with some long setae; remaining surface of vertex and area behind upper eye lobes with short, sparse setae. Area behind lower eye lobes with band of moderately sparse setae, gradually denser toward ventral side (this band completely surrounding the lobe and connected with that on frons). Submentum laterally separated from genae by longitudinal, deep sulcus; with wide, transverse carina centrally; coarsely, shallowly punctate (punctures partially confluent between carina and gula); anterior margin elevated, wide, smooth, glabrous; remaining with short, abundant setae interspersed with long, moderately abundant setae. Gena moderately finely, abundantly punctate, except for smooth area close to apex; with short, moderately abundant setae, except for glabrous area close to apex. Coronal suture distinct from transverse sulcus close to clypeus to about middle of antennal tubercles, gradually indistinct toward tubercles between eyes. Antennal tubercles obliquely, widely sulcate; coarsely, sparsely punctate outside of sulcus, moderately fine, abundantly punctate inside of sulcus; with short, moderately abundant setae inside of sulcus, sparsely outside of sulcus. Distance between upper eye lobes 0.35 times length of scape; distance between lower eye lobes in frontal view 0.90 times length of scape; distance between lower eye lobes in ventral view 2.9 times width of one lobe (also in ventral view). Antennae as long as 1.5 times elytral length (left antenna missing antennomeres IX– XI); reaching elytral apex at distal third of antennomere X; scape moderately coarsely, abundantly punctate on basal half, gradually sparser toward apex; inner side of antennomeres III– V with long, moderately abundant setae (shorter, sparser toward V); antennal formula based on length of antennomere III: scape = 0.88; pedicel = 0.20; IV = 0.82; V = 0.83; VI = 0.75; VII = 0.70; VIII = 0.66; IX = 0.60; X = 0.54; XI = 0.65.

Thorax. Prothorax transverse, 1.4 times wider than long (including lateral tubercles); central lateral tubercle moderately large, with apex almost acute, upturned; tubercle-shaped close to anterior margin. Pronotum with transverse, moderately deep sulcus along smooth region close to distal margin; transversely, slightly sulcate on distal smooth region; with narrow, transverse sulcus near basal margin; basal area between transverse sulcus and punctate region laterally carinate; central region widely smooth on basal half, distinctly narrower on distal half; remaining surface very coarsely, confluently punctate (nearly all punctures with small tubercle inside); disc with short, sparse setae interspersed with long setae, except for: smooth central area on basal half glabrous; somewhat denser on basal quarter; pubescent laterally and on wide, transverse band at anterior third (centrally not fused). Lateral sides of prothorax finely, densely punctate under central tubercle, vermiculate close to procoxal cavity, coarsely, confluently punctate on remaining surface, except for transversely sulcate area close to anterior margin; pubescent, except for vermiculate area with short, moderately sparse setae. Prosternum widely, transversely sulcate on basal two-thirds; with narrow, moderately deep, transverse sulcus on anterior third; basal two-thirds moderately finely punctate-vermiculated, except for smooth anterior central area; basal third with short, sparse setae; region between transverse sulcus almost glabrous toward basal third, with narrow band with short setae close to anterior transverse sulcus. Prosternal process centrally 0.6 times width of procoxal cavity; with short setae, except for glabrous central region. Mesosternum with sparse setae centrally, slightly denser laterally. Mesosternal process without tubercle. Mesepisterna and mesepimera with short, abundant setae (not obscuring integument), slightly denser on mesepimera close to mesocoxal cavity. Metepisterna with short, abundant setae, slightly denser close to apex. Metasternum laterally finely, abundantly punctate, gradually smoother toward center; with short, abundant setae laterally, interspersed with moderately abundant long setae, gradually sparser toward center, that is almost glabrous. Scutellum with short, abundant setae, except for glabrous narrow band laterally and posteriorly. Elytra moderately coarsely, sparsely punctate on basal third, gradually finer, sparser toward apex (except on eburneous maculae); each puncture with small setae, except for some long setae on basal third close to suture; each elytron with two elongate, small eburneous macula on base (on right elytron of the holotype the innermost is distinctly shorter and not elevated, and there are two contiguous laterally), and centrally with two long eburneous maculae, with outermost twice longer than innermost and 2.4 times longer than antennomere III; apex truncate; outer angle spiny; sutural angle with triangularly projected. Legs. Apex of meso- and metafemora spiny (spine shorter than lateral width of femora).

Abdomen. Ventrites finely, densely punctate (less so centrally on I–IV, mainly on I); ventrites I–IV with short, abundant setae (denser laterally and on narrow distal band) interspersed with long setae; ventrite V with short, abundant setae throughout, with apex truncate (slightly, widely emarginate).

Dimensions (mm). Holotype female. Total length (including mandibles), 23.3; prothoracic length, 3.9; basal prothoracic width, 4.9; distal prothoracic width, 3.4; largest prothoracic width, 5.6; humeral width, 6.7; elytral length, 16.2.

Type material. Holotype female from MEXICO, Guerrero: Xalitla (590 m), 11.VIII.2010, Daniel Curoe col. ( MZSP).

Etymology. This species is named for Juan Pablo Botero (MNRJ), for his contribution toward knowledge of Eburiini .

Remarks. Susuacanga boteroi sp. nov. is similar to S. hatsueae (Chemsak and Giesbert, 1986) , but differs as follows (female): antennae shorter (surpassing elytral apex by about only one segment); pronotum distinctly less pubescent; elytra not pubescent; spine of outer apical angle of elytra short. In females of S. hatsueae the antennae surpass the elytral apex by about two segments, the pronotum is more pubescent, the elytra is distinctly pubescent, and the spine of the outer apical angle is notably long.

Susuacanga boteroi sp. nov. can be included in the alternative of couplet “6”, from Botero (2014):

6’(4). — Elytra not pubescent. Mexico........................................................................ S. boteroi sp. nov. Elytra distinctly pubescent ........................................................................................................... 6 6(6’).

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External posterior eburneous callosities shorter than antennomere III, spines at elytral apices with the same length. Guatemala, Honduras.......................... S. wappesi ( Noguera, 2002)

External posterior eburneous callosities longer than antennomere III, external spine at elytral apex longer than inner. Mexico (Jalisco, Michoacán, Guerrero, Oaxaca ................................... ........................................................................ S. hatsueae (Chemsak and Giesbert, 1986)

Figures

Figures 1–8. 1–4) Susuacanga boteroi sp. nov., holotype female: 1) Dorsal habitus; 2) Ventral habitus; 3) Lateral habitus; 4) Head, frontal view. 5–8) Eburia (Eburia) girouxae sp. nov., holotype male: 5) Dorsal habitus; 6) Ventral habitus; 7) Lateral habitus; 8) Head, frontal view.