Eupempelus rileyorum, Galileo, Maria Helena M., Martins, Ubirajara R. & Santos-Silva, Antonio, 2015
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publication ID |
https://doi.org/ 10.11646/zootaxa.3986.3.6 |
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publication LSID |
lsid:zoobank.org:pub:DD792C6B-50C3-4691-8A2D-5E906B5C39D6 |
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DOI |
https://doi.org/10.5281/zenodo.6101583 |
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persistent identifier |
https://treatment.plazi.org/id/9C4B878F-FFA5-E208-8DF1-FA2DFA74DBCF |
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treatment provided by |
Plazi |
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scientific name |
Eupempelus rileyorum |
| status |
sp. nov. |
Eupempelus rileyorum View in CoL sp. nov.
( Figures 13–15 View FIGURES 13 – 18. 13 – 15 )
Description. Head orange, except for: parts of frons, genae, antennal tubercles, central area of postclypeus, anterior area of submentum black; longitudinal central band on frons brownish, with reddish-brown area on each side; lateral sides of postclypeus reddish-brown. Mandibles, metathorax, abdomen, legs (except for pro- and mesocoxae), scape (except for orangish condyle), pedicel, and antennomere III black (more dark-brown on some areas); pro- and mesothorax, parts of scutellum, narrow basal band on elytra, basal quarter of epipleura, pro- and mesocoxae orange; remaining elytral surface brownish; antennomeres IV–XI brown.
Head. Frons finely, abundantly punctate; with yellowish pubescence, not obliterating integument, laterally denser. Antennal tubercles microcorrugate on basal half, smooth towards antennal condyle; with abundant, yellowish pubescence on microcorrugate region, glabrous on remaining surface. Vertex densely, micropunctate; with yellowish pubescence, not obliterating integument, with some long setae close to eyes. Area behind upper eye lobes with sculpture and pubescence as on vertex; area behind lower eye lobes moderately finely, transversely striate, with some long, dark and yellowish setae. Submentum and lateral of gula microsculptured; central area of gula smooth; submentum with short, sparse setae, interspersed with long, sparse setae. Mandibles laterally coarsely punctate, with one long seta at basal half and some long setae at distal half. Distance between upper eye lobes equal to 0.7 times length of scape; distance between lower eye lobes, in frontal view, equal to 0.9 times length of scape. Antennae as long as 1.8 times elytral length; reaching elytral apex at apex of antennomere VIII; antennomeres III– IV with a minute spine at inner apex; scape with one long setae at outer side; pedicel and antennomeres III–X with long, sparse, thick setae laterally and/or ventrally (sparser towards apex of antenna); antennal formula based on antennomere III: scape = 0.52; pedicel = 0.15; IV = 0.75; V = 0.86; VI = 0.88; VII = 0.88; VIII = 0.79; IX = 0.71; X = 0.63; XI = 0.69.
Thorax. Prothorax as long as wide; anteriorly distinctly more narrowed than base. Lateral tubercles of prothorax large, sub-rounded, placed about middle. Pronotum with five gibbosities, two anteriorly, sub-rounded, very distinct, at each side; one centrally, slightly marked; two at basal half, on each side; pubescence yellowish, abundant, but not obliterating integument, interspersed by long, sparse setae. Basal two-thirds of prosternum with pubescence and setae as on pronotum; anterior third transversely striate, centrally almost glabrous, laterally with moderately sparse pubescence, interspersed with sparse setae. Prosternal process cordiform at distal half. Mesosternum with pubescence as on pronotum, laterally slightly denser, longer. Mesosternal process wide; sides parallel; apex deeply emarginate. Metasternum finely, sparsely punctate (laterally slightly denser); with short, whitish pubescence throughout, almost obliterating integument, interspersed with long, sparse setae (mainly laterally). Scutellum centrally depressed; with yellowish-white pubescence, not obliterating integument. Elytra. Finely, densely punctate; with dense, short, whitish pubescence, not obliterating integument, interspersed with moderately long, sparse setae; each elytron with two carinae, moderately marked: one between scutellum and humeri, from base to distal quarter; one humeral, from base do distal third; apex widely, obliquely truncate, with short spine at each angle.
Abdomen. Urosternites finely, sparsely punctate; covered with whitish pubescence, interspersed with long, sparse, white setae. Legs. Metatarsomere I as long as II-V together.
Type material. Holotype female from PANAMA, Panama: Canal Zone (Fort Kobbe), 6.VI.1985, E. G. & M. A. Riley col. ( TAMU).
Dimensions in mm (female). Total length, 15.9; length of prothorax at center, 3.0; largest width of prothorax, 2.8; anterior width of prothorax, 2.0; posterior width of prothorax, 2.5; humeral width, 3.2; elytral length, 10.8.
Etymology. The species is named after Edward G. Riley and Maureen A. Riley, collectors of the holotype.
Remarks. Eupempelus rileyorum sp. nov. differs from E. olivaceus Bates, 1870 mainly by the presence of lateral tubercles on the prothorax (absent in E. olivaceus ). It can be distinguished from E. illuminus Mermudes & Napp, 2001 , and E. spinithorax Mermudes & Napp, 2001 by the elytral carinae not strongly marked, and by the elytral apex distinctly obliquely truncate. In both, E. illuminus and E. spinithorax the elytral carinae are notably marked, and the elytral apex is rounded.
Eupempelus rileyorum can be included in the alternative of couplet “2”, from Mermudes & Napp (2001) (modified):
2. Elytra metallic dark green. Gibbosities of the pronotum weakly prominent. Brazil (Amazonas, Mato Grosso).... E.olivaceus - Elytral color not metallic. Gibbosities of the pronotum strongly prominent....................................... 3 3. Elytra blackish, strongly costate; elytral apex rounded. Ecuador...................................... E. spinithorax - Elytra brownish, not strongly costate; elytral apex obliquely truncate. Panama..................... E. rileyorum sp. nov.
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