Dicepolia artoides, Hayden, James E., 2009

Hayden, James E., 2009, Taxonomic revision of Neotropical Dicepolia Snellen (Lepidoptera: Crambidae), Zootaxa 2237, pp. 1-33 : 19-21

Dicepolia artoides sp. nov.

Figures 8, 9, 24, 40, 48, 50, 54

Material examined: Holotype 3 ( CUIC): Light. // La Chorerra, Putu / mayo Distr. PERU / 16 20 Aug. 1920 // Cornell Univ. Ex- / pedition Lot 607 // Endolophia sp. / Det. E. G. Munroe 1986 // HOLOTYPE / Dicepolia / artoides / Hayden. CUIC type no. 7354. Not dissected.

Paratypes: Bolivia: 13: R. Madeira / 5°30'S / 17/5/74. // 89-8 // BMNH (E) #846378 (ex type series of D. roseobrunnea (Warr.) , NHM, Drawer 217-111). 13: Buenavista, East / Bolivia, 750 m, / Aug. 06 –April 0 7 / (Steinbach). // Rothschild / Bequest / 1939-1. // B.M. Pyralidae / Genitalia slide / No. 22136 3 // BMNH (E) #846379. 13: Prov. Sara, / Dept. S. Cruz / de la Sierra. / End II to VI 0 4. / (J. Steinbach) // BMNH (E) #846380. Ecuador: 13: ECUADOR, Napo / Lago Agrio / (3 Kms. NE.) / 17 May 1975 / at Pozo #23 // Collected at / Black light // ECUADOR. PEACE CORPS. / SMITHSONIAN INSTITUTION / AQUATIC INSECT SURVEY ( USNM). French Guiana: 2ƤƤ: St. Jean de Maroni, / French Guiana. / Received from / E. Le Moult. // Rothschild / Bequest / 1939-1; one with label “ BMNH (E) #846381,” one with labels “B.M. Pyralidae / Genitalia slide / No. 22141 Ƥ” and “ BMNH (E) #846382” (all NHM). 1Ƥ: GUYANE FRANÇse / Nouveau Chantier / Collection le Moult // AVRIL // MUSÉUM PARIS / Mgr. FOUCHER 19 // J.E. Hayden SLIDE No. 286 Ƥ ( MNHN). Peru: 13: Jurac, Aguaytia, / Huallaga, Peru 400m. / July 1961-23 / Through F.H. Walz ( CNC). 13: Jurac, nr. Aguaytia / 400 m. Huallaga, Peru / February, 1961 / Through F.H. Walz // [blue] SLIDE No. 3025 DK ( CNC). 53 (same lot as holotype): Light. // La Chorerra, Putu / mayo Distr. PERU / 16 20 Aug. 1920 // Cornell Univ. Ex- / pedition Lot 607. –One with label “J.E. Hayden SLIDE No. 11 3,” one with label “J.E. Hayden SLIDE No. 519 3,” one with label “ Phlyctaenia ” [W.T.M. Forbes’s hand] ( CUIC type no. 7354). Venezuela: 43: Ocamo / Venezuela T.F. / Amazonas. / 13-XI-1982 // Col. F. Guanchez // Propiedad del MIZA / Fac. Agronomia UCV / Maracay, Venezuela; one with label “J.E. Hayden SLIDE No. 80 3,” another with same data except “ 9-XI-1928 ” ( MIZA).

Diagnosis: Forewings ruby red, brownish or violet, with lines faint and PM nearly straight from costa to posterior edge. Labial palpi exceptionally long. S8 emargination narrow, between lamelliform structures; S8 medial spine long and narrow. Medial third of vincular saccus narrow and flat, lateral thirds bent obliquely. Phallus with single twist; ornutus long and thin. Ductus bursae between ostium bursae and colliculum nearly as long as A8, and colliculum twice as long as wide.

Description: General color brownish red, brownish violet; faded specimens brownish orange. Frontoclypeus moderately prominent, projecting 0.14 ± 0.03 mm (n = 17), frontoclypeus a slightly rounded, obtuse arch (fig. 50). Frons flat. Frons and vertex dark red. Eye 0.72 ± 0.03 mm (n = 17). Labial palpi dark red, with mixed gray and brown scales, 1.9–2.9 mm (mean 2.3 ± 0.1 mm, n = 13). Mean palpi:eye ratio 3.2. Antennae reddish gray. Male antennae not more strongly ciliate than female. Haustellar scales white. Cervical scales yellowish white. Dorsal thorax dark red. Ventral thorax and legs white, except pale grayish foreleg tibia and basal half of dorsal edge of midleg tibia. Male foreleg without femoral androconia. Outer: inner spur ratios: midleg, 0.3; hindleg, 0.7.

Forewing length 7.0– 8.8 mm (mean 8.0 ± 0.2 mm), width 3.5–4.6 mm (mean 4.0 ± 0.2 mm), mean length:width ratio 2.0 (n = 17) (figs 8, 9). Color brownish red or brownish violet (brownish orange in some). Costa dark gray. Transverse lines dark red, dark brown in some Peruvian specimens. Antemedial line usually faint; where visible anterior of discal cell, slanted basad to costa; perpendicular from cell to posterior edge. Postmedial line relatively straight, very slightly curving basad on 1A (more distinctly in Bolivian specimens). Marginal fringe broadly leaden gray with whitish scales distally. Scale-tooth absent from posterior edge. Underside bronzy brown, white posterior of 2A, lines absent. Hindwings opaque white with slight bronze cast and gray scales interspersed. Terminal area rosy, especially on veins and near 1A. Postmedial line absent or barely distinct from other dark scales.

Abdomen dorsally variably pale gray, pale yellow or off-white; rosy scales present in some; ventral abdomen cream. Male genitalic scales and T8 fringe cream. S7 tuft present, small.

Male genitalia (figs 24, 40): S8 anterior emargination rather triangular. S8 posterior edge slightly emarginate, flexure between lamelliform structures, with large, long, relatively narrow medial spine. A8 pleural androconium linear. Lamelliform structures on bases with sloping shoulders, bases laterally slightly convergent. Vinculum with medial third flat, lateral thirds bent distinctly in 120-degree angle. Gnathos arms converging at 45- to 90-degree angle; gnathos lateral arms robust; median element as long as arms. Costal flutes present. Valva oblong. Phallus with 1 spiral. Cornutus single, long and thin.

Female genitalia (fig. 54): S9 length:depth ratio, 0.7. Ductus very long between ostium bursae and colliculum, almost as long as A8. Colliculum twice as long as wide. Spur of colliculum small, from corner. Appendix of ductus bursae slightly smaller than normal; appendix of corpus bursae normal size. Corpus bursae without discrete signum or granular patch.

Etymology: In reference to its similarity to Arta Grote (Chrysauginae) in the deep red color and nearly straight postmedial line.

Distribution: Eastern slopes of the Andes from Bolivia to Venezuela; French Guiana.

Flight period: Feb. and July–Aug. ( Peru), April ( French Guiana), May ( Ecuador and Rio Madeira, Brazil), November ( Venezuela); Bolivian specimens Feb.–Jun. and Aug.–April.

Similar species: D. bicolor has a contrastingly pale median area, no cornutus, and the appendix of the cervix bursae strongly reduced.

Remarks: This distinctive species is represented by good series in the CUIC and MIZA. Only a few females are known, and not all females are associated with certainty.

PLATE 4. a, male genitalia; b, phalli. Scale bars = 1mm. J.E. Hayden prep. nos. unless indicated. 35. D. roseobrunnea (221); 36. D. rufitinctalis (234); 37. D. rufitinctalis robust cornutus (247); 38. D. aerealis (360); 39. D. amazonalis (BMNH 22134); 40. D. artoides (80); 41. D. bicolor (363); 42. D. cuiabalis (NHM 22135). s, squamiform structure.