Zootaxa 4422 (3): 395–402 ISSN 1175-5326 (print edition) http://www.mapress.com/j/zt/ Article ZOOTAXA Copyright © 2018 Magnolia Press ISSN 1175-5334 (online edition) https://doi.org/10.11646/zootaxa.4422.3.5 http://zoobank.org/urn:lsid:zoobank.org:pub:066252ED-DE7E-4191-A03C-822F24455280 A new of Audinet-Serville, 1832 (Coleoptera, Cerambycidae, ) from a cloud forest in Honduras

ANTONIO SANTOS-SILVA1, NOËL MAL2, MARTIJN VAN ROIE3, 4 & MERLIJN JOCQUÉ2,3,5,6 1Museu de Zoologia, Universidade de São Paulo, São Paulo, SP, Brazil 2 Royal Belgian Institute of Natural Sciences, Vautierstraat 29, 1000 Brussels, Belgium 3Biodiversity Inventory for Conservation npo (BINCO), Walmersumstraat 44, 3380 Glabbeek, Belgium 4Department of Biology, Ecosystem Management Research Group, University of Antwerp, Universiteitsplein 1, 2610 Wilrijk, Belgium 5Operation Wallacea, Wallace House, Old Bolingbroke, Lincolnshire, PE23 4EX, UK. 6Corresponding author. E-mail: [email protected]

Abstract

A yearly biodiversity monitoring of longhorned (Cerambycidae) in a Honduran cloud forest revealed a new species of prionine. Derobrachus cusucoensis sp. nov. is a locally relatively common species described from Cusuco National Park in Honduras, becoming the ninth species of this recorded for the country. Similar both in morphology and a montane habitat to D. dohrni, there is a possibility that this new species represents a disconnected population from the latter that evolved separately. An adapted insert for an existing identification key to all Derobrachus species is included.

Key words: Central America, key, longhorned , , Cusuco National Park

Introduction

The Honduran landscape is characterized by mountains topped by cloud forest. Over the years these montane forest ecosystems have developed a rich diversity of and plants uniquely adapted to this habitat. The most northern stretches of cloud forest in Honduras are located in the Merendón mountain range, bordering Guatemala. The tiny forest patches here are partly covered by Cusuco National Park (CNP), ranked in the top 100 most irreplaceable sites worldwide for the conservation of threatened amphibians, birds and mammals (Le Saout et al. 2013). The high degree of isolation of this mountain range has resulted in a high degree of endemicity. Deforestation here is a pressing issue, and the actual protection of CNP limited. To help preserve this unique forest, a yearly biodiversity monitoring is set in place by Operation Wallacea (https://www.opwall.com/). This monitoring program includes light trapping at fixed locations to evaluate selected invertebrate groups such as the Lepidoptera families Sphingidae (hawkmoths) and Saturniidae (emperor moths). The most common longhorned beetles observed at light traps in CNP are Derobrachus species (Cerambycidae: Prioninae: Prionini) and include a new species to science. Recently, Heffern and Santos-Silva (2016) described a new species of this genus from Mexico (Veracruz), elevating the number of known species in Derobrachus (Monné 2017) to 20. Santos-Silva (2007) revised Derobrachus Audinet-Serville, 1832 and divided the genus into three species groups, without nomenclatural value, together encompassing 19 species: “sulcicornis group”, “brevicollis group”, and “apterus group”. Of these, the species that currently have been recorded for Honduras (Monné 2017) are: Derobrachus apterus Bates, 1879, D. dohrni Lameere, 1911; D. granulatus Bates, 1884; D. inaequalis (Bates, 1872); D. longicornis (Bates, 1872); D. megacles Bates, 1884; D. procerus Thomson, 1861 and D. sulcicornis LeConte, 1851. We here describe the new species of Derobrachus from cloud forest in CNP and provide an insert for identification key to species.

Accepted by G. Nearns: 23 Mar. 2018; published: 24 May 2018 395 Material and methods

Field site. Light trapping took place from June to August 2014-2017 in Cusuco National Park (CNP), situated in the Merendón mountain range in northwestern Honduras. The core zone of the park consists of lower montane tropical rain forest (a mix of primary and secondary), with patches of primary cloud forest and upper montane rain forest. Light trapping is repeated yearly on five fixed locations in CNP; Base Camp (15.497056000 / - 88.211764000), Cantilles (15.513457 / -88.241681), Guanales (15.488512 / -88.234064), Cortecito (15.522111000 / -88.289355000), El Danto (15.528277 / -88.277573), and an occasional location Capuca (15.512366 / - 88.217148). Field collection. The light trap was equipped with a 125 W Philips MV bulb strung in front of a vertical white piece of cloth at about 150 cm above the ground. A white piece of plastic was placed under the bulb. Power was provided by a portable generator. Light trapping was initiated at 20:00 and continued for two hours. Cerambycids were collected and preserved in 70% ethanol. Species description. Photographs related to figures 1–5 were taken with Canon EOS70D DSLR Camera and 105 mm F2.8 Sigma EX DG Macro OS Lens; stacking by Zerene Stacker software (by the second author). Photographs related to figures 6–15 and 17–20 were taken with a Canon EOS Rebel T3i DSLR camera, Canon MP-E 65 mm f/2.8 1-5X macro lens, stacking by Zerene Stacker software (by the first author). Measurements were taken in ‘‘mm’’ using measuring ocular Hensoldt/Wetzlar - Mess 10 in the Leica MZ6 stereomicroscope, also used in the study of the specimens. Measurements. Total length is measured as the distance between the tip of the mandibles and the distal edge of elytra. Prothoracic length is measured along the central line of the prothorax. Anterior prothoracic width is measured as the widest point between the tips of the distal lateral spines. Posterior prothoracic width is the widest point between the tips of the basal lateral spines. The latter two measurements were only recorded if lateral spines were intact. The humeral width is the distance between the shoulders of the elytra. Elytral length is the distance between the humeral callus and the elytral apex measured on a parallel line with the interior edge of the elytra.

The collection acronyms used in this study are as follows:

RBINS Royal Belgian Institute of Natural Sciences, Brussels, Belgium; NDPC Norbert Delahaye, Private Collection, Plaisir, France; MZSP Museu de Zoologia, Universidade de São Paulo, São Paulo, São Paulo, Brazil; ZMPA Polish Academy of Science, Museum of the Institute of Zoology, Warsaw, Poland.

Derobrachus cusucoensis, sp. nov. (Figs 1–13, 21–23)

Description. Holotype male (Figs 1–5, 7, 9–10, 12). Integument mostly dark brown, more blackish on some areas; palpi reddish brown; antennae dark brown; elytra dark brown basally, brown on remaining surface, except dark brown margins; tarsomeres I–IV dark brown interspersed with irregular dark reddish brown areas; tarsomere V reddish brown, especially metatarsomere V, except basal and distal areas. Head. Area between clypeus and prothoracic margin longitudinally sulcate; coarsely rugose on each side of central sulcus between clypeus and posterior margin of upper eye lobes, interspersed with fine, sparse punctures; area between posterior edge of upper eye lobes and prothoracic margin finely, abundantly rugose-punctate (opaque general appearance); with short, erect, sparse yellowish brown setae, slightly more abundant close to eyes. Ocular carina distinct from anterior margin of upper eye lobes to near posterior ocular edge. Area between clypeus and antennal base, moderately finely, densely punctate; with short, erect, abundant yellowish brown setae, more abundant toward ventral side. Antennal tubercles large, inner side rounded, slightly projected under frons; coarsely, sparsely punctate on basal half, gradually finer, denser toward apex, especially denser in frontal area; with erect, sparse yellowish brown setae, shorter, distinctly more abundant close to apex. Postclypeus (Fig. 5) large; basal area centrally nearly coplanar with frons, distinctly elevated toward sides, with distal margin widely concave; central distal area distinctly inclined; center of basal area sub-triangularly smooth, finely, abundantly punctate in remaining central area, gradually coarser, sparser toward sides; inclined area smoothly, sparsely punctate; with

396 · Zootaxa 4422 (3) © 2018 Magnolia Press SANTOS-SILVA ET AL. long, erect, abundant yellowish brown setae, sparser toward sides of basal area and in inclined area. Anteclypeus transverse, narrow, smooth, glabrous. Labrum narrow, transverse, inclined, with center of distal margin rounded projected; with sparse yellowish brown setae and dense fringe of yellowish brown setae distally, except in rounded projection. Gulamentum finely, moderately sparsely punctate from base to lower eye lobes (this area convex), coarsely vermiculate from this point to distal margin (this area gradually depressed toward distal area of eyes, then distinctly elevated toward mentum); with long, erect, abundant yellowish brown setae. Area behind eyes finely rugose. Maxillary palpi long, about 1.8 times length of labial palpi. Genae finely, moderately abundant punctate, especially toward ventral side; with long, erect yellowish setae, sparser toward dorsal side, more abundant toward ventral side; apex acute, obliquely projected forward. Outer side of mandibles without tooth close to distal curvature. Distance between upper eye lobes 0.20 times length of scape; in ventral view, distance between lower eye lobes 0.25 times length of scape. Antennae 1.27 times elytral length, reaching elytral apex near apex of antennomere XI. Antennomere III dorsally longitudinally sulcate, gradually less distinctly toward apex; dorsally shinnying, finely, sparsely punctate in basal 2/3, opaque, striate on distal third; ventrally flat, opaque, longitudinally sulcate in basal 2/3, with small, sparse asperities; apex 1.9 times wider than base, 0.27 times length of antennomere. Antennomere IV (Fig. 9) dorsally flattened, widely longitudinally sulcate from base to near apex. Antennomeres IV-XI completely striate longitudinally. Antennal formula (ratio) based on length antennomere III: scape = 0.64; pedicel = 0.11; IV = 0.75; V = 0.72; VI = 0.67; VII = 0.68; VIII = 0.64; IX = 0.64; X = 0.59; XI = 0.97. Thorax. Pronotum flattened in disc, distinctly sloping laterally; discal gibbosities moderately distinct; basal and distal transverse furrows well-marked (the latter distinctly wider); surface coarsely rugose; with long, erect, yellowish brown setae, more abundant laterally; anterolateral angles obliquely projected forward, flattened, with apex bifurcate into 2 spines; basal and middle spines long, conical (with small spine between anterolateral angle and middle spine at left side). Ventral side of thorax with long, erect, abundant yellowish brown setae, denser in metathorax. Scutellum finely rugose. Elytra. Surface distinctly rugose throughout, glabrous; dorsal carinae slightly marked; epipleural region slightly dilated in basal half; apex with short spine in outer and sutural angles (longer in the latter), minutely crenulate before outer spine. Legs. Femora denticulate in lateral margins of ventral side, more distinctly in metafemora; inner side of protibiae longitudinally sulcate (Fig. 4). Protarsus (Fig. 10) widened; apices of tarsomere I and II acutely projected; tarsomere II distinctly wider than long; apices of tarsomere V without spine. Apices of metatarsomeres I and II (Fig. 12) with short spine in apices; metatarsomere III (Fig. 12) wide, not gradually narrowed from base to apex, with short spine in apices. Abdomen. Ventrites I–IV nearly smooth; ventrites I–II with yellowish brown setae laterally, glabrous in remaining surface; ventrites III–IV glabrous; ventrite V finely, sparsely punctate, with short sparse setae, more abundant on distal area; distal margin of ventrite V slightly concave. Male genitalia (Figs 21–23). Tegmen curved in lateral view, slightly longer than median lobe. Distal part of tegmen gently curved. Median lobe slightly shorter than tegmen, distinctly curved in lateral view; ventral distal lobe strongly, triangularly projected, with central length longer than 1.5 times basal width; dorsal distal lobe not notched apically; median width tapering from base to ventral distal lobe. Parameres gradually narrowed toward apex, inner margin divergent at basal half, with long, bristly yellowish brown setae on distal third, shorter, sparser on basal 2/3; ventral surface slightly depressed, densely, confluently punctate. Phallobase about 2.5 times length of parameres; roof extended, about as long as parameres; ringed part nearly parallel, with apices widened and touching each other. Female (Figs 6, 8, 11, 13). Distance between upper eye lobes 0.30 times length of scape; in ventral view, distance between lower eye lobes 0.45 times length of scape. Antennae 0.7 times elytral length, reaching at about middle of elytral length; antennomeres III–IV slightly longitudinally sulcate dorsally. Gulamentum coarsely vermiculate throughout, less so between base and upper eye lobes. Mandibles (Fig. 8) as in male, without tooth close to distal curvature. Pronotum as in male, but pubescence present only laterally. Metaventrite with abundant pubescence only laterally, with remaining surface nearly glabrous. Outer elytral angle without spine, but slightly projected; sutural angle with short spine; area before outer angle not crenulate. Protarsus (Fig. 11); apices of protarsomere I not spiniform; protarsomere II wider than long, with acute apices, projected forward; lobes of protarsomere III distinctly widened at about center, with spiniform apices. Metatarsus (Fig. 13); apices of metatarsomere I not spiniform; metatarsomere II slightly longer than wide, with spiniform apices; lobes of metatarsomere III distinctly widened at about center, with spiniform apices. Abdominal ventrites glabrous except for short, sparse setae laterally on base of ventrite I.

A NEW DEROBRACHUS FROM HONDURAS Zootaxa 4422 (3) © 2018 Magnolia Press · 397 FIGURES 1–6. Derobrachus cusucoensis. 1–5, holotype male: 1, dorsal habitus; 2, ventral habitus; 3, lateral habitus; 4, protibia; 5, head, dorsal view; 6, paratype female, dorsal habitus.

398 · Zootaxa 4422 (3) © 2018 Magnolia Press SANTOS-SILVA ET AL. FIGURES 7–20. 7–13, Derobrachus cusucoensis: 7, mandibles, dorsal view, holotype male; 8, mandibles, dorsal view, paratype female; 9, antennomere IV, dorsal view, holotype male; 10, protarsus, holotype male; 11, protarsus, paratype female; 12, metatarsus, holotype male; 13, metatarsus, paratype female. 14–20, Derobrachus dohrni: 14, mandibles, dorsal view, male; 15, mandibles, dorsal view, female; 16, antennomere IV, dorsal view, holotype male; 17, protarsus, male; 18, protarsus, female; 19, metatarsus, male; 20, metatarsus, female.

A NEW DEROBRACHUS FROM HONDURAS Zootaxa 4422 (3) © 2018 Magnolia Press · 399 FIGURES 21–25. 21–23, Derobrachus cusucoensis, paratype male: 21, tegmen, ventral view; 22, median lobe, ventral view; 23, median lobe, lateral view. 24–25, Derobrachus dohrni, male: 24, tegmen, ventral view; 25, median lobe, ventral view.

Variations in males. Elytra dark reddish brown basally, reddish brown on remaining surface, except brown margins; antennae dark reddish brown; tarsi mostly reddish brown; erect setae at area between clypeus and antennal base sparse, especially toward dorsal surface; erect setae close to apex of antennal tubercles sparse; inclined area of postclypeus from finely, abundantly punctate to smooth; inclined area of postclypeus nearly glabrous; antennae from almost reaching elytral apex to surpassing elytral apex by about antennomere XI; outer spine of elytral apex absent or nearly so; apices of protarsomere III forming short, spiniform projection; abdominal ventrite V nearly smooth. Dimensions (mm). Holotype (male)/ paratypes males/ paratypes females are presented. Total length, 64.00/ 42.6–61.85/64.60–72.30; prothoracic length, 5.00/3.25–6.70/5.8–7.00; prothoracic width between basal lateral spines, 16.30/10.40–16.60/17.00–20.15; prothoracic width between distal lateral spines, 13.50/9.05–15.05/ 15.00–18.60; humeral width, 17.00/11.1–17.45–/18.25–21.50; elytral length, 45.70/30.9–44.9/46.55–50.50. Type material. Holotype male from HONDURAS, Cortés: Cusuco National Park (base camp), 1.VII.2013, W. Stock col. (RBINS 33.606). Paratypes – HONDURAS, Cortés: Cusuco National Park (Cortecito camp; light trap; 100 m; upstream; 20-22hs), 1 male, 31.VII.2009, M. Jocqué col. (RBINS 33.606); (Cantilles; 15.513221612 / - 88.241660614; light trap, between 20:30-21:00hs), 1 male, 23.VI.2013, M. Jocqué col. (RBINS); (Base camp, parking lot visitor centre; light trap; 15.497073876 / -88.211364644), 1 male, 23.VI.2013, Merlijn col. (MZSP); (Cortecito camp; 15.520777646 / -94.288968137; light trap), 1 male, 21.VII.2013, M. Jocqué col. (RBINS 33.606); (Guanales; 15.488913842 / -88.234409681Campsite and transect ½), 1 male, 27.VI.2012, M. Jocqué col. (RBINS 33.606); (El Danto; 15.528099826 /-88.27753474), 1 female, VI-VIII.2013, M. Jocqué col. (MZSP); 3 males (n° 7896, 8724, 8725), 16.VI.1998, former H.-M. Baudet collection (NDPC); 1 male (n° 7897), 26.VI.1998, former H.-M. Baudet collection (NDPC); 1 male (n° 9377), 16.VI.1998, R. D. Cave col. (NDPC); 1 female (n° 9376), 25.VI.1998, R. D. Cave col. (NDPC); (Base camp; light trap; 20-22hs), (Base camp; light trap; 20-22hs), 1 female, 3.VII.2014, M. Jocqué col. (RBINS 33.606); (Base camp; light trap; 20-22hs), 1 male, 23.VI.2017, M. Jocqué col. (RBINS 33.606); (Base camp; light trap; 20-22hs), 1 male, 16.VI.2015, M. Jocqué col. (RBINS 33.606); (Base camp; light trap; 20-22hs), 2 males, 17.VII.2015, M. Jocqué col. (RBINS 33.606); (Base camp; light trap; 20- 22hs), 2 males, 13.VI.2015, M. Jocqué col. (RBINS 33.606); (Cortecito camp; light trap; 20-22hs), 1 male, 6.VII.2015, M. Jocqué col. (RBINS 33.606); (Base camp; light trap; 20-22hs), 1 male, 17.VII.2015, M. Jocqué col. (RBINS 33.606); (Base camp; light trap; 20-22hs), 2 males, 1 female, VI.2015, M. Jocqué col. (RBINS 33.606);

400 · Zootaxa 4422 (3) © 2018 Magnolia Press SANTOS-SILVA ET AL. (Base camp; light trap; 20-22hs), 1 male, 15.VI.2015, M. Jocqué col. (RBINS 33.606); 1 male, 22.VII.2015, M. Jocqué col. (RBINS); (Base camp; light trap; 20-22hs), (Cortecito camp; light trap; 20-22hs), 1 male, 18.VII.2015, M. Jocqué col. (RBINS 33.606) ; (Base camp; light trap; 20-22hs), 1 male, 20.VI.2015, M. Jocqué col. (RBINS 33.606); (Capuca camp; light trap; 20-22hs), 1 male, 6.VII.2015, M. Jocqué col. (RBINS 33.606); (Base camp; light trap; 20-22hs), 1 female, 15.VII.2015, M. Jocqué col. (RBINS 33.606); (Guanales; light trap; 20-22hs), 1 male, 25.VII.2015, M. Jocqué col. (RBINS 33.606); (Base camp; light trap; 20-22hs), 2 males, 30.VII.2014, M. Jocqué col. (RBINS 33.606); (Base camp; light trap; 20-22hs), 1 female, 18.VI.2014, M. Jocqué col. (RBINS 33.606); (Base camp; light trap; 20-22hs), 1 male, 26.VI.2014, M. Jocqué col. (RBINS 33.606); (Base camp; light trap; 20-22hs), 1 male, 27.VI.2014, M. Jocqué col. (RBINS 33.606); Santa Barbara: Santa Barbara (1750 m), 1 male (n° 8726), 15.VIII.1995, former H.-M. Baudet collection (NDPC). Etymology. The name refers to Cusuco National Park (CNP) in the Merendón mountain range, Honduras where the species was collected. Remarks. Derobrachus cusucoensis sp. nov. is somewhat similar to D. dohrni Lameere, 1911, but differs as follows: Mandibles without tooth at outer side close to distal curvature in both sexes (Figs 7–8); antennomere IV in male distinctly flattened and sulcate dorsally (Fig. 9); protarsus in male (Fig. 10) wider, with protarsomere II distinctly wider than long; protarsus in female (Fig. 11) wider, with protarsomere II wider than long; metatarsus in male (Fig. 12) wider, with lobes of metatarsomere III distinctly wider and less spiniform at apex; metatarsus in female (Fig. 13) wider, with metatarsomere II slightly longer than wide, and metatarsomere III more widened; parameres gradually narrowed from base to apex, with inner margin divergent at basal half (Fig. 21); distal ventral lobe of median lobe with central length longer than 1.5 times basal width (Fig. 22); distal dorsal lobe of median lobe not notched apically (Fig. 22). In D. dohrni, the mandibles have a distinct tooth at outer side close to distal curvature in both sexes (Figs 14–15), antennomere IV in male distinctly convex and not sulcate dorsally (Fig. 16), protarsus in male narrower (Fig. 17), with protarsomere II about as long as wide, protarsus in female slender (Fig. 18), with protarsomere II distinctly longer than wide, metatarsus in male slender (Fig. 19), with lobes of metatarsomere III slender and with long spine at apices, and metatarsus in female slender (Fig. 20), with metatarsomere II distinctly longer than wide, and metatarsomere III slender, parameres (Fig. 24) not widened basally, with inner margins parallel-sided, distal ventral lobe of median lobe with central length slightly longer than basal width (Fig. 25), and dorsal lobe of median lobe notched apically (Fig. 25). Derobrachus cusucoensis is also similar to D. longicornis (Bates, 1872), especially by the pronotal pubescence in males, but differs by the elytra rugose (smooth in D. longicornis), antennomere IV in male distinctly flattened and sulcate dorsally (convex and not sulcate in males of D. longicornis), and tarsi wider (slender, similar to those of D. dohrni in D. longicornis). The new species can easily be separated from D. megacles Bates, 1884, by the pronotum distinctly rugose in both sexes (smooth in both sexes of D. megacles). Derobrachus cusucoensis differs from D. drumonti Santos-Silva, 2007, by the elytra not distinctly carinate (distinctly longitudinally carinate in males of D. drumonti), antennomere IV flattened and sulcate dorsally (convex and not sulcate in D. drumonti), and by the anterolateral angles of prothorax bifurcate at apex (not bifurcate in D. drumonti). Derobrachus cusucoensis sp. nov. can be included in the alternatives of couplet “6” (male) and “30” (female) from Santos-Silva (2007):

12(11). Distance between upper ocular lobes approximately equal to basal width of antennomere III ...... 12’ - Distance between upper ocular lobes distinctly greater than basal width of antennomere III ...... 13 12’(12). Mandibles with tooth after middle of outer side (Figs 14–15); antennomere IV convex and not longitudinally sulcate dorsally (Fig. 16). Mexico (Chiapas, Jalisco), Guatemala (Quiché, Chimaltenango and Sololá), Honduras and Panama (?)...... D. dohrni Lameere, 1911 - Mandibles without tooth at outer side (Figs 7–8); antennomere IV flattened and longitudinally sulcate dorsally (Fig. 9). Hon- duras ...... D. cusucoensis sp. nov. 30(26). Elytral disk distinctly sculptured, often rugose over entire surface ...... 30’ - Elytral disk smooth, sculpturing, if present, confined to basal third...... 31 30’(30). Pronotum smooth. Mexico (Sonora, Chihuahua, Sinaloa, Durango, Jalisco, Michoacán de Ocampo and Mexico), Honduras...... D. megacles Bates, 1884 - Pronotum densely rugose-punctate. Honduras ...... D. cusucoensis sp. nov.

A NEW DEROBRACHUS FROM HONDURAS Zootaxa 4422 (3) © 2018 Magnolia Press · 401 Discussion

This new species of Derobrachus most closely resembles D. dohrni. Derobrachus dohrni is also recorded from Honduras (Santos Silva 2007), from La Esperanza at an elevation of 1788 masl and close to Tegucigalpa at an elevation of 1020 masl. Other Derobrachus species recorded during the light trapping surveys in CNP include D. apterus and D. inaequalis. Both Derobrachus dohrni and Derobrachus cusucoensis sp. nov. are montane species restricted to higher elevations. The type locality of D. cusucoensis sp. nov. in the Merendón mountain chain is situated at the most northwestern part of Honduras, near the Caribbean Sea. Substantial morphological variation is recorded in D. cusucoensis sp. nov. Total length varies considerably, but also specific features such as the shape and dimensions of the lateral spines on the pronotum. Male genitalia are fairly constant in the studied D. cusucoensis sp. nov. specimens and seem to provide a reliable identification feature between D. dohrni and D. cusucoensis sp. nov. (Fig. 21–25). Most important differences include a depressed distal tip of the tegmen (compared to gently outside curved), parallel median width of the median lobe in D. dohrni (compared to tapering), median lobe ventrally with punctuated surface (compared to smooth surface), parameres are equally wide towards the apex (compared to gradually narrowed), and ventral punctuation on the telomeres does not extend beyond the telomere base (compared to ventral punctuation laterally extending beyond telomere base).

Acknowledgments

We are grateful to all Operation Wallacea Ltd. staff and students for help with field collection data and samples. We acknowledge the Instituto de Conservación Forestal (ICF), who provided permits to work within CNP. We are grateful to Roberto Downing from Expediciones y Servicios Ambientales de Cusuco (ESAC) for support on permits and logistics. We express our sincere thanks to Jiří Pirkl for sending us your photographs of the syntypes of Derobrachus dohrni; to Alain Drumont (RBINS) and Norbert Delahaye for sending specimens of the new species for study in the MZSP. Thank you to Eugenio Nearns (National Museum of Natural History, Smithsonian Institution, Washington, DC) for contributions to the manuscript.

References

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