CHRISTI M. JAEGER AND RICHARD L. BROWNauthors.entomology-aes.org/article/public/46.pdf(Lepidoptera: Tortricidae). SHILAP Revista de Lepidopterologia 39: 39–59. Razowski J, Wojtusiak

RESEARCH ARTICLE

Publication date: 12 May 2016

TAES 142: 35-40ISSO 0002-8320

http://taes.entomology-aes.org/

INTRODUCTION

Prior to 2009, Ancylis (Olethreutinae: Enarmoniini) and Rhopobota (Olethreutinae: Eucosmini) were unknown from South America. Since then four species of Ancylis and 11 species of Rhopobota have been described from Brazil and Ecuador (Razowski and Wojtusiak 2009, Razowski & Becker 2010, Razowski & Pelz 2011). Ancylis ecuadorica Razowski and Wojtusiak and R. tungurahuana Razowski and Pelz were described from Ecuador based on one and two female specimens, respectively. Herein we provide the first descriptions of males of these two species and augment the descriptions of the adults and genitalia of both based on specimens collected at Cerro de la Neblina, Venezuela. Cerro de la Neblina is a plateau mountain, or tepui, in southern Venezuela with an elevation extending to 2,014 m and a summit occupying 235 km2 (Costa et al. 2013). The tepui was discovered in 1953, and its vegetation was described by Maguire (1955). A joint expedition involving scientific institutions in the United States and Venezuela, as well as the Venezuelan government, was organized to survey the biota of Cerro de la Neblina from February, 2084 to March, 1985. Charles Brewer-Carias served as the Expedition Coordinator, and

Roy McDiarmid served as the organizer of more than 80 biologists from the United States that were divided into groups with biologists from Venezuela. Each group of 15 to 20 biologists reached Cerro de la Neblina by varied forms of transportation, which, in the case of the second author, involved commercial and chartered planes, dug-out canoes (bongos), and a Venezuelan Air Force helicopter, with the return trip also involving a National Guard IAI Arava plane. From a base camp at the foot of the mountain, the helicopter ferried collectors to camps on the summit, although this ferrying was constrained by clouds surrounding the mountain.

METHODS

Dissection and slide mounting methods for genitalia followed Clarke (1941). A Leica MZ 125 Stereo-Microscope and Olympus Compound Microscope were used for examining specimens and slide mounts at magnifications ranging 10–100x and 100-400x, respectively. Images of imagos were made with a Leica stereoscope with Image Pro Plus 5.1 program for autoformatting. Descriptions of head, thorax, and forewing pattern are based on both sexes as no sexual dimorphism was detected, and these descriptions include characters that were not mentioned in the original descriptions.

Descriptions of males of Rhopobota tungurahuana Razowski & Pelz and Ancylis ecuadorica Razowski & Wojtusiak (Lepidoptera: Tortricidae) with

new distribution records from Venezuela

CHRISTI M. JAEGER AND RICHARD L. BROWN1

Mississippi Entomological Museum, Box 9775, Mississippi State, MS 39762-9775, USA [email protected] [CMJ], [email protected] [RLB]

ABSTRACT

The descriptions of Rhopobota tungurahuana Razowski & Pelz and Ancylis ecuadorica Razowski & Wojtusiak were based on female specimens collected in Ecuador. Series of both sexes of these species were collected in Venezuela, and these represent new distribution records. Male genitalia are described, and figures of imagos and genitalia of both sexes are provided. Key words: Olethreutinae, Enarmoniini, Eucosmini, Cerro de la Neblina, male genitalia

Rhopobota & ancylis from Cerro de la NebliNa36

Descriptions of genitalia are provided for males and previously unmentioned characters of female genitalia. Terminology for genitalia follows Klots (1970), except the intromittent organ is termed phallus following Kristensen (2003). Specimens were deposited in the Mississippi Entomological Museum at Mississippi State University (MEM) and the United States National Museum of Natural History, Washington, D.C.

Ancylis ecuadorica Razowski & Wojtusiak(Figs. 1, 3, 4, 7)

Head — Labial palpus cream colored, second segment with two brown spots laterally, one at base, one at middle, apical scales darker and longer, nearly concealing third segment, third segment with dark brown scales; frons cream colored with some darker scales dorsally; vertex cream intermixed with brownish grey; antennae brown.

Thorax — Mesonotum and tegula light brown, tegulae on some specimens with dark brown scales intermixed with light brown. Forewing pattern (Fig. 1) as described by Razowski and Wojtusiak (2009); termen with a single row of dark brown scales from apex to tornus, interrupted by two small spots of white scales at CuA2 and CuP, 1–2 rows of white scales preceding dark brown margin between apex and M3; forewing length 8.5–9.0 mm in females (n=3), 9.0 mm in males (2n); fringe scales light brown.

Abdomen — Male with large brushes of sex scales arising from membrane between tergite I and sternite II. Male genitalia (Figs. 3, 4) with tegumen uniform in width from vinculum to uncus; uncus bifid, short, sparsely setose; socii forming subtriangular lobes arising from tegumen dorsolaterally, apical half densely setose; gnathos arising just above midlength of tegumen, narrow; valva with costal hook forming enlarged, rounded projection; sacculus with ventrodistal projection, sparsely setose; cucullus subequal in width from base to apex, densely setose; phallus slightly curved dorsally, tapering towards apex, with many short lanceolate cornuti. One preparation examined. Female genitalia (Fig. 7) as described by Razowski and Wojtusiak (2009) with following additions: sternite VII without microtrichia; tergite VIII

with posterior half setose, laterally with scales; sterigma with dense microtrichia. One preparation examined. Material examined — Venezuela: Estado Merida, 7 km E Tabay, Mucuy Fish Hatchery, 6600 ft, 10–13 February 1978, J.B. Heppner, malaise trap (1♂). Territorio Federal Amazonas, Cerro de la Neblina, Camp II, 2085 m, 0°49’41”N 65°58’56”W, 15–22 February 1984, T. McCabe (1♀). Camp II, 2100 m, 0°50’N 65°59’W, 29 February 1985, at blacklight at edge of open bog and Bonnetia scrub, W.E. Steiner (1♀). Camp VII, 1850 m, 0°51’N 65°58’W, 2-4 December 1984, R.L. Brown (1♂, 1♀).

Rhopobota tungurahuana Razowski(Figs. 2, 5, 6, 8)

Head — Labial palpus white medially, light brown laterally, except third segment and apex of second segment white, second segment tufted ventrally; frons smoothly scaled, light brown; vertex roughly scaled, dark brown to brownish grey posteriorly, white anteriorly; antennae concolorous with posterior portion of vertex. Thorax — Mesonotum light to dark brown, some specimens with 1–2 distinct transverse white bands; tegulae light to dark brown, some specimens with white scales on apices. Forewing pattern (Fig. 2) as described by Razowski and Pelz (2011); termen convex except with shallow indentation between Rs4 and M1 and posterior to a single white strigulae; forewing length 7.0–8.0 mm in females (5n), 6.0–7.0 mm in males (4n).

Abdomen — Male genitalia (Figs. 5, 6) withtegumen moderately broad, widening dorsally; uncus bifurcate, divided into two, widely separated unci (I doubt if there are two uncuses – perhaps bifurcate?) with scattered microtrichia on apices; socii arising from tegumen apicolaterally, densely setose, fingerlike, narrowing apically; gnathos arising from midlength of tegumen, narrowing beyond base; valva with sacculus rounded ventrally, sparsely setose, with area dorsal of sacculus and basal to neck densely setose, valval neck narrow, with scattered microtrichia; cucullus densely setose with apical indentation, with spiniform setae on outer angle of apex; phallus short, with wide and

JAEGER & BROWN 37

blunt apex, possessing more than 15 cornuti. Two preparations examined. Female genitalia (Fig. 8) as described by Razowski and Pelz (2011) with following additions: tergite VII with posterior half setose; papillae anales densely setose, with setae having papillose bases; sternite VII setose except for anterior transverse ridge and posterior margin, posterior margin with microtrichia; ductus bursae with sclerotized ring at posterior end possessing dentate microtrichia; signa covered by dentate microtrichia. One preparation examined.

Material examined — Venezuela: Territorio Federal Amazonas, Cerro de la Neblina, Camp II, 2085 m, 0°49’41”N 65°58’56”W, 15–22 February 1984, T. McCabe (2♀), Camp VII, 1850 m, 0°51’N 65°58’W, 2–4 December 1984, R.L. Brown (3♂, 3♀); Camp XI, 1450m, 0°52’N 65°58’W, 25–28 February 1985, Malaise trap in Bonnetia & Tyleria montane scrub, P.J. Spangler, P.M. Spangler, and R.A. Faitoute (1♂).

ACKNOWLEDGEMENTS

We thank Joe MacGown for providing illustrations of the genitalia. Funding for collection of specimens by the second author was provided by La Fundacion para el Desarrolo de las Ciencias, Mathematicas y Naturales of Venezuela and the U.S. National Museum of Natural History. This research was supported in part by the USDA National Institute of Food and Agriculture project # MIS-012040.

LITERATURE CITED

Clarke JFG (1941) The preparation of slides of the genitalia of Lepidoptera. Bulletin of the Brooklyn Entomological Society 36: 149–161.

Klots, AB (1970) Tuxen, S.L. ed. Taxonomist’s Glossary of Genitalia of Insects. Munksgaard, Copenhagen. pp. 115-130.

Kristensen, NP (2003) Lepidoptera, Moths and Butterflies. Volume 2: Morphology, Physiology, and Development. Handbuch der Zoologie. Eine Naturgeschichte der Stämme des Tierreiches / Handbook of Zoology. A Natural History of the phyla of the Animal Kingdom. Band / Volume IV Arthropoda: Insecta Teilband / Part 36. Walter de Gruyter, Berlin, pp 39-131.

MacGuire, B (1955) Cerro de la Neblina, Amazonas, Venezuela — a newly discovered sandstone mountain. Geographical Review 45: 27-51.

Razowski J, Becker VT (2010) Neotropical Rhopobota Lederer (Lepidoptera: Tortricidae). Polish Journal of Entomology 79: 171–186.

Razowski J, Pelz V (2011) Ecuadoran species of Aglaopollex Razowski & Pelz, gen. n., Ancylis Hübner, [1852] and Rhopobota Lederer, 1859 (Lepidoptera: Tortricidae). SHILAP Revista de Lepidopterologia 39: 39–59.

Razowski J, Wojtusiak J (2009) Tortricidae (Lepidoptera) from the mountains of Ecuador and remarks on their geographical distribution. Part IV: Eastern Cordillera. Acta Zoologica Cracoviensia 51B: 119–187.

Rhopobota & ancylis from Cerro de la NebliNa38

Figures 1–2. Imagos of males. 1, Ancylis ecuadorica; 2, Rhopobota tungurahuana.

JAEGER & BROWN 39

Figures 3–6. Male genitalia. 3–4, Ancylis ecuadorica, USNM slide 28843; 3, posterior view without phallus; 4, phallus; 5–6. Rhopobota tungurahuana, USNM slide 28841; 5, posterior view without phallus; 6, phallus.

Rhopobota & ancylis from Cerro de la NebliNa40

Figures 7–8. Female genitalia. 7, Ancylis ecuadorica, USNM slide 28844; 8, Rhopobota tungurahuana, USNM slide 28842.