Spodochlamys keitai Kobayashi and Ratcliffe, 2023

Kobayashi, Kazuo & Ratcliffe, Brett C., 2023, A New Species of Spodochlamys Burmeister, 1855 (Coleoptera: Scarabaeidae: Rutelinae: Anatistini) from Colombia and a Key and Checklist of Spodochlamys Species, The Coleopterists Bulletin 77 (1), pp. 120-126 : 121-125

Spodochlamys keitai Kobayashi and Ratcliffe , new species zoobank.org/ urn:lsid:zoobank.org:act:98807D14-6B85-4432-BA8A-1E3D4CA3EDE6 ( Figs. 1–2 )

Type Material. Holotype labeled “ COLOMBIA / Boyacá, / Otanche , / III-2021 ” and with our red holotype label ( Fig. 2F ). Three paratypes with the same data and each with our red paratype label . Holotype deposited at the University of Nebraska State Museum ( UNSM), Lincoln , Nebraska, USA. One paratype was deposited at the Natural History Museum ( NHMUK), London, England, and two paratypes in the Keita Maruyama personal collection ( KMC), Tokyo, Japan .

Description of Holotype. Male ( Figs. 1A , 2A–F ). Length 27.0 mm; width across humeri 10.1 mm. Color: Head, pronotum, elytra, and tibiae reddish brown with shiny, metallic copper reflections; scutellar shield shiny metallic green ( Fig. 1A ); pygidium, venter and femora shiny reddish brown. Elytra lacking waxy bloom. Head: Head completely, densely rugulopunctate. Clypeal apex (dorsal view) broadly semicircular, rounded ( Fig. 1A ), weakly reflexed; surface (frontal view) with upper and lower margins subparallel. Labrum at middle 3 times wider than venter of clypeal apex ( Fig. 2B ), apex broadly, weakly subacute; surface with minute, sparse, setigerous punctures, setae short and pale. Mentum slightly tumescent with faint longitudinal depression from apex to middle of disc ( Fig. 2B ). Interocular width equals 3.8 transverse eye diameters. Antenna with club subequal in length to entire stem. Pronotum: Form evenly convex in lateral view. Surface completely, densely, coarsely rugopunctate, becoming more so toward slightly explanate lateral margins. Lateral margin evenly rounded, weakly crenulate ( Fig. 1A ). Basal margin with complete bead. Length at middle 1.6 times longer than frons. Scutellar shield: Surface densely rugulopunctate, glabrous. Elytra: Surface completely, densely, coarsely rugopunctate, rugae becoming larger and transverse laterally. Striae completely absent. Epipleuron (ventral view; Fig. 2A ) slightly concave, broad at base and gradually tapering apically, glabrous. Apex at suture nearly right angled. Apical umbone well developed, conical ( Figs. 1A , 2E ). Pygidium: Surface shiny, with minute, sparse, shallow punctures, glabrous. Form in lateral view strongly convex.Apical bead slender, slightly wider at middle. Venter: Mesoventrite not produced at apex. Meso- and metaventrite with long, dense, pale setae ( Fig. 2A ). Abdominal sternites with small, dense punctures. Legs: All tibiae coarsely rugopunctate. Protibia not elongate or curved, lacking ventroapical modification, inner margin straight ( Fig. 1A ); external margin tridentate, basal tooth slightly removed from apical teeth. Protarsal inner claw entire at apex; meso- and metatarsal inner claws minutely split at apices ( Fig. 1A ). Protarsomere 5 with weak median tooth. Profemur not elongated, lacking ventromedial projection. Procoxa not ventrally produced and enlarged. Metafemur with posterior margin “normal”, not weakly produced posteriorly, not laminate. Meso- and metatibial apices truncate, upper angle acute ( Fig. 2e ). Metatibial apical spurs simple, acute ( Fig. 2A ). Parameres: Form symmetrical, long, slender ( Figs. 2C–D ).

Variation. The three male paratypes ( Figs. 1B–D ) do not differ from the holotype. Length: 27.8–31.4 mm.

Etymology. The specific epithet is named in honor of Keita Maruyama who provided the specimens for this study.

Distribution. Spodochlamys keitai is known only from Otanche in Boyacá Department, Western Boyacá Province, in northeastern Colombia. Otanche is at an elevation of 1,050 m and surround- ed by tropical rain forest. The specimens were purchased by Mr. Keita Maruyama from a local collector in Colombia.

Temporal Distribution. March (4).

122 Diagnosis. Spodochlamys keitai is immediately distinguished by its remarkably long and slender parameres ( Figs. 2C–D ) that are unlike any other in the genus. It is further differentiated from other species of Spodochlamys based on the characters in the key. The female remains unknown and so cannot be characterized.

We have not included the four species described by Soula (2010) ( Spodochlamys peruvianus Soula , Spodochlamys lydiae Soula , Spodochlamys curoei

124 Soula, and Spodochlamys jamesonae Soula ) in our 5′. Inner claw of meso- and metathoracic legs split, key because Soula’s typically brief descriptions and prothoracic leg with claw weakly split or simimages do not include some diagnostic characters, ple. Apical umbone of elytra with spinose proincluding the form of the labrum and whether all jection or tubercle ......................................... 6 the claws are split or not; those are essential char- 6. Posterior margin of metafemur not narrowly acters for our key. Based on available information, laminate, not produced posteriorly ............... 7 these species would go to couplet 9 in our key. The 6′. Posterior margin of metafemur narrowlY form of the parameres in Soula’s paper might dis- laminate and produced posteriorly ............... 8 tinguish those species, although S. curoei and S. 7. Inner metatibial spur strongly hooked. ........... jamesonae seem remarkably close to each other and ...... S. ancistrospina Jameson and Ratcliffe Spodochlamys neitai Jameson and Ratcliffe , and S. 7′. Inner metatibial spur not hooked ................... peruvianus seems close to Spodochlamys feyeri .............................................. S. soulai Curoe Ohaus s ensu Jameson and Ratcliffe (2011), not 8. Apical umbone of elytra with well developed, Soula (2010). spinose projection ................. S. feyeri Ohaus In gestalt, S. keitai resembles S. curoei but differs 8′. Apical umbone of elYtra tuberculate .............. in the following respects: 1) the surface adjacent to ................... S. neitai Jameson and Ratcliffe the elytral suture is more coarsely rugose and not 9. Apex of labrum acutely angulate ................... finely punctate; 2) slender, hair-like setae on the ............................................ S. gigas Murray parameres are completely absent; and 3) the param- 9′. Apex of labrum obtuselY angulate .............. 10 eres are more elongated and bi-arcuate. 10. Inner claw split at apex on all legs ................. Natural History. Nothing is known of the life ........................................... S. cupreola Bates history of S. keitai . 10′. Inner claw of prothoracic leg simple; claw split or not on meso- and metathoracic legs. ............................................................ 11 KEY TO SPECIES OF MALE SPODOCHLAMYS 11. Elytral color dark brown, opaque ...................

.......... S. marahuaca Jameson and Ratcliffe Note: Males of Spodochlamys letiranti Jameson and 11′. ElYtral color reddish brown, shinY or with waxY Ratcliffe are not known. The four Soula species bloom .......................................................... 12 ( S. peruvianus , S. lydiae , S. curoei , S. jamesonae ) 12. Elytra with waxy bloom.................................. are not included in the key for lack of known char- ................ S. neblina Jameson and Ratcliffe acters. See Diagnosis in text. 12′. ElYtra shinY, with weak metallic copper reflection ................ S. keitai Kobayashi and 1. Head and pronotum brown, black, or cupreous, Ratcliffe, new species occasionally with metallic green reflections 13. Pronotum greatly vaulted in lateral view; in (with magnification and illumination). Elytral dorsal view, basolateral margins greatly explaepipleuron (ventral view) lacking short, dense nate. Anterior margin of profemur with well setae. Elytral surface lacking minute setae .... 2 developed, forward-projecting spine near 1′. Head and pronotum greenish in color (with apex............................................................. 14 magnification and illumination). Elytral 13′. Pronotum regularlY convex in lateral view; in epipleuron (ventral view) with short, dense dorsal view, basolateral margins not greatly setae. Elytral surface with minute setae ..... 13 explanate.Anterior margin of profemur lacking 2. Pronotum distinctly vaulted in lateral view. forward-projecting spine near apex ............ 15 Protibia greatly elongate and bowed. Elytra 14. Anterior margin of elytra with weak, external with waxy bloom ............. S. iheringi Ohaus tooth. Mesotibia at apex acutely produced on 2′. Pronotum regularlY convex in lateral view. external edge. Metatibia not greatly flattened Protibia simple, not elongate and not bowed. in lateral view ........ S. mirabilis Waterhouse Elytra with or without bloom........................ 3 14′. Anterior margin of elYtra without external 3. Clypeal apex strongly narrowed to a recurved, tooth. Mesotibia at apex quadrate, not produced acute, narrowly bidentate tooth. Elytra with on external edge. Metatibia greatly flattened in waxy bloom.............. S. caesarea Burmeister lateral view .......................... S. latipes Arrow 3′. ClYpeal apex rounded, lacking strong attenua- 15. Pronotum on lateral margin near middle roundtion. Elytra without waxy bloom ................ 4 ed, lacking sharp angulation. Pronotal surface 4. Pygidial disc protuberant in lateral view ..... 5 rugopunctate ................... S. nazareti Arnaud 4′. PYgidial disc evenlY convex in lateral view, not 15′. Pronotum on lateral margin near middle with noticeably produced posteriorly.................... 9 sharp angle. Pronotal surface densely 5. Inner claws (all legs) simple. Apical umbone punctate....................................................... 16 of elytra rounded, lacking spinose projection 16. Inner margin of protibia weakly curved.

................................ S. flavofemorata Ohaus Mentum with median, longitudinal,

parallel-sided depression that extends from apex to base........... S. curvibrachialis Ohaus

16′. Inner margin of protibia straight, not weaklY curved. Mentum with median depression that extends from apex to mid-disc ....................... ........................................... S. poultoni Shipp

Figures

Fig. 1. Dorsal habitus of Spodochlamys keitai, new species. A) Holotype, B–D) Paratypes.

Fig. 2. Holotype of Spodochlamys keitai, new species. A) Ventral habitus, B) Venter of head showing clypeus, labrum, and mentum, C) Parameres, caudal view, D) Parameres, lateral view, E) Apex of elytron showing apical umbone and right metatibia, F) Holotype labels. Scale bars = 10.0 mm (A); 2.0 mm (C and D); 5.0 mm (E); B and F not to scale.