Revision ofCyclocaccusSharp (Coleoptera: Nitidulidae: Nitidulinae) Author Hisamatsu, Sadatomo Author Bayless, Victoria M. Author Carlton, Christopher E. text The Coleopterists Bulletin 2016 2016-12-31 70 4 825 870 http://dx.doi.org/10.1649/0010-065x-70.4.825 journal article 10.1649/0010-065X-70.4.825 5340413 Cyclocaccus speciosus Hisamatsu , new species ( Figs. 1E , 5 , Map 1) Type Series. Holotype ( SEMC ): ♂ , ‘GUYANA: Region 8 / Iwokrama Forest , 1 km W Kurupukari , / Iwokrama Field Stn. 60 m / 4°40′19″N , 58°41′4″W / 20–25 MAY 2001 / R. Brooks , Z. Falin GUY1BF01 034 / ex: flight intercept trap // SMO567346 / KUNHM–ENT’ . Paratypes : [ GUYANA ] 3♂ , Iwokrama Forest , Pakatau hills, 70 m , 04°44′54″N , 59°01′36″W , ex: fogging fungus logs, 27. V. 2001 , R. Brooks & Z. Falin leg. ( SEMC ) ; 2♂ 1♀ , ditto, but 28. V. 2001 ( SEMC ) ; 1♂ 1♀ , Iwokrama Forest , Turtle Mt. base camp, 50 m , 04°43′05″N , 58°43′05″W , ex: fogging fungusy logs, 1. VI. 2001 , R. Brooks & Z. Falin leg. ( SEMC ) ; 1♀ , ditto, but 300 m , 04°43′ 49″N , 59°01′36″W , ex: flight intercept trap , 26–29. V. 2004 , R. Brooks & Z. Falin leg. ( SEMC ) ; 2♀ , ditto, but ex: flight intercept trap , 26–29. V. 2001 ( SEMC ) ; 1♂ , ditto, but ex: flight intercept trap , 30. V. −2. VI. 2001 ( SEMC ) ; 1♀ , Iwokrama Forest , Kabocalli Field StN, 60 m , 04°17′04″N , 58°30′35″W , ex: flight intercept trap , 3–5. VI. 2001 , R. Brooks & Z. Falin leg. ( SEMC ) ; 1♀ , same data as the holotype. ( SEMC ) . [ SURINAME ] 1♂ , Brownsberg Nature Preserve , Witi Creek Trail, Brokopondo , 80 m , 04°56′55″N , 55°10′53″W , ex: flight intercept trap , 23–25. VI. 1999 , Z. Falin leg. ( SEMC ) . [FRENCH GUIANA] 1♀ , 7 km N. Les Eaux Claires , 220 m , Säul , 220 m , 03°39′46″N , 53°13′19″W , ex: flight intercept trap , 30. V. –4. VI. 1997 , J. Ashe & R. Brooks leg. ( SEMC ) ; 1♂ , 33.5 km S. and 8.4 km NW of Hwy N2 on Hwy D5, Cayenne , 30 m , 04°48′ 18″N , 52°28′41″W , ex: flight intercept trap , 29. V.–9. VI. 1997 , J. Ashe & R. Brooks leg. ( SEMC ) . [ ECUADOR ] 1♀ , Napo , Yasuni , Res. Stn. on mid. Rio Tiputini , 00°40.5′S , 76°24′W , ex: malaise trap , 20–28. VI. 1999 , C. Carlton & V. Moseley leg. ( LSAM ) ; 1♂ 2♀ , Orellena , Yasuni, N.P. , Via Maxus at Queb. Piranã Bridge , 00°39.5′N , 76°26′W , ex: malaise trap , 14–24. VI. 2008 , A.K. Tischechkin leg. ( ARCC ) ; 1♀ , Yasuni, N.P. , Via Maxus at Queb. Pirana Bridge , Orellena , 00°39.5′N , 76°26′W , ex: malaise trap , 14–24. VI. 2008 , A.K. Tishechkin leg. ( ARCC ) ; 1♀ , Tiputini Biodiversity Stn. , Orellena , 00°38.2′N , 76°08.9′W , ex: malaise trap , 27. VII. – 3. VIII. 2008 , A.K. Tishechkin leg. ( ARCC ) ; 1♂ , ditto, but 28. VII. – 3. VIII. 2008 ( ARCC ) . [ BRAZIL ] 1♀ , Serra Norte , Piste Nl km, Pará , 22, 1. XI. 1984 , N. Degallier leg. ( SEMC ) . [ PERU ] 1♂ , Amazonas Lodge, N . Atalaya , Madre de Dios , 480 m , 12°52.2′ S , 71°22.6′W , ex: flight intercept trap , 10–13. XI. 2007 , D. Brzoska leg. ( SEMC ) ; 2♂ 2♀ , Pantiacolla Lodge , Alto Madre de Dios R., Madre de Dios , 12°39.3′S , 71°13.9′W , 420 m , ex: flight intercept trap , 14–19. XI. 2007 , D. Brzoska leg. ( SEMC ) ; 2♀ , Pantiacolla Lodge , 5.5 km NW El Mirador Trail , Alto Madre de Dios River , 500 m , 12°39′10″S , 71°15′28″W , ex: flight intercept trap , 23–26. X. 2000 , R. Brooks leg. ( SEMC ) . [ BOLIVIA ] 3♂ 1♀ , 67.5 km NE Est. Biol. Valle del Sajita Univ. de San Simon , Cochabamba , 300 m , 17°06′33″S , 64°47′52″W , ex: flight intercept trap , 7–9. II. 1999 , R. Hanley leg. ( SEMC ) ; 1♀ , lowland rain forest, ditto, but 17°06′19″S , 64°46′57″W , ex: flight intercept trap , 7–9. II. 1999 , F. Génier leg. ( CMN ) ; 1♀ , 117 km E. Cochabamba , at Lagunitas , 1,000 m , 17°06′22″S , 65°40′57″W , mountain evergreen forest, ex: flight intercept trap , 1–6. II. 1999 , F. Génier leg. ( CMN ) . Table 1. Differentiation of the three Cyclocaccus species-groups and four genera of Neotropical Cyllodini .

C. laeticulus	C. brevicollis	C. morulus
Character	species-group	species-group	species-group	Apsectochilus *	Lordyrops	Meoncerus	Pallodes
Head	Hypognathous	Hypognathous	Hypognathous	Prognathous	Prognathous	Prognathous	Hypognathous
Vertexal line	Absent	Absent	Absent	Only present at	Present on vertex	Only present at	Only present at
base of eye	base of eye	base of eye
Frontoclypeal suture	Present	Present	Present	Present	Absent	Present	Present
Mandibular apex	With subapical	With subapical	With subapical	Without subapical	Without subapical	Without subapical	with subapical
tooth	tooth	tooth	tooth	tooth	tooth	tooth
Antennal groove	Convergent	Convergent	Convergent	Parallel	Convergent	Convergent	convergent
Antennal sensilia	Present (1–2)	Present (2)	Present (2)	Present (1)	Absent	Absent	Absent
Apical margin	Widely rounded	Widely rounded	Widely rounded	Widely rounded	Widely rounded	Widely rounded	acuminate
of scutellum
Subsutural line	Present	Present	Present	Present	Present	Present	Absent
on elytra
Greatest prosternal	About as long	About as long as	About as long	Slightly shorter	Slightly shorter	Slightly shorter	distinctly shorter
length (except	as greatest	greatest protibial	as greatest	than greatest	than greatest	than greatest	than greatest
prosternal process)	protibial width	width	protibial width	protibial width	protibial width	protibial width	protibial width
Midline of the	Feebly convex	Feebly convex	Strongly convex	Feebly convex	Moderately convex	Feebly convex	Feebly convex
prosternum
Setae on prosternum	Absent	Absent	With tuft of setae	Absent	With long setae	Absent	Absent
at middle
in males
Intermesocoxal	About as wide as	About as wide as	About as wide	Slightly narrower	Distinctly narrower	Slightly narrower	Distinctly narrower
distance	greatest protibial	greatest protibial	as greatest	than greatest	than greatest	than greatest	than greatest
width	width	protibial width	protibial width	protibial width	protibial width	protibial width
Apical margin of	Widely rounded	Widely rounded	Widely rounded	Widely rounded	Acuminate	Acuminate	Widely rounded
prosternal process
Meso-metaventral	Evenly concave	Evenly concave	Evenly concave	Abruptly concave	Weakly depressed	Weakly depressed	Weakly depressed
junction
Subcoxal bead	Simple	Simple	Simple	Simple	Simple	Simple	Broadly connected
on metaventrite	at middle of
metaventrite
Metaventral	Present (strongly	Present (strongly	Present (strongly	Present (weakly	Present (weakly	Present (weakly	Absent
axillary space	developed)	developed)	developed)	developed)	developed)	developed)
Metaventrite	Strongly convex,	Strongly convex,	Strongly convex,	Moderately convex,	Moderately convex,	Moderately convex,	Strongly convex,
impunctate	impunctate	impunctate	densely punctate	densely punctate	densely punctate	impunctate
Metathoracic discrimen	Absent	Absent	Absent or present	Absent	Present	Present	Present

Continued on next page Table 1. Continued.

C. laeticulus	C. brevicollis	C. morulus
Character	species-group	species-group	species-group	Apsectochilus *	Lordyrops	Meoncerus	Pallodes
Metendosternite	Furcal arms with	Furcal arms with	Furcal arms with	?	?	Furcal arms without	Furcal arms without
paired lateral	paired lateral	paired lateral	ventral processes	ventral processes
lobes of ventral	lobes of ventral	lobes of ventral	at bases	at bases
process at	process at	process at
each base	each base	each base
Surface of	Impunctate	Densely punctate	Impunctate or	Densely punctate	Densely punctate	Densely punctate	Impunctate
metanepisternum	densely punctate
Metepisternum	Separated into	Separated into	Separated into	Not separated	Separated into	Separated into	Not separated
two sclerites	two sclerites	two sclerites	two sclerites	two sclerites
Subcoxal lines on	Absent	Absent or present	Absent or present	Absent	Absent	Absent	Present
abdominal
ventrite III
Intermetacoxal	About as wide	About as wide	About as wide	Slightly narrower	About as wide as	Distinctly wider	Distinctly
distance	as greatest	as greatest	as greatest	than greatest	greatest protibial	than greatest	narrower
protibial width	protibial width	protibial width	protibial width	width	protibial width	than protibia
Punctures on	Finely punctate	Densely punctate	Densely punctate	Densely punctate	Densely punctate	Densely punctate	Sparsely punctate
abdominal segments	(except ventrite VII)
Lateral margins of	Finely serrate	Finely serrate	Strongly serrate	Simple	Finely serrate	Finely serrate	Simple
abdominal ventrite
VII
Apices of gonocoxites	Widely separated	Not separated,	Not separated,	Not separated,	?	Not separated,	Not separated,
truncate	truncate	truncate	truncate	triangular
Apical margin of	Widely rounded	Widely rounded	Truncate or	Truncate	Widely rounded	Truncate	Widely rounded
male abdominal	widely rounded
ventrite VII
Lateral margins	Strongly undulating	Not undulating	Not undulating	?	Not undulating	Not undulating	Not undulating
of tegmen
Shape of tegmen	Narrowing to apex	Narrowing to apex	Subparallel	?	?	Narrowing to apex	Narrowing to apex
Male tarsonomeres	Feebly to	Feebly dilated	Strongly dilated	Strongly dilated	Strongly dilated	Strongly dilated	Strongly dilated
I-III	moderately dilated
Outer lateral margins	Rectangular	Rectangular	Rectangular	Rectangular	Rectangular	Rectangular	Widely rounded
of protibiae
Spine of outer-lateral	Absent	Absent	Absent	Present	Absent	Absent	Absent
angle of tibia

*The genera Lordyrops Reitter, 1875 and Meoncerus Sharp, 1891 were both synonymized under Apsectochilus by Leschen (1999). Subsequently, Kirejtshuk (2008) treated these as distinct genera. In the present study, we examined the type species of the above genera ( i.e ., Lordyrops deyrollei Reitter, 1875 (holotype, MNHN); Meoncerus salvini Sharp, 1891 (holotype, BMNH); and Apsectochilus hydroporoides Reitter, 1874 (type? determined by Dr. Kirejtshuk, MNHN). Among them, A. hydroporoides possesses intermediate characters between the Cyllodes - and Oxycnemus -complexes in having 1) more or less deeply emarginate anterior labral margin, 2) process at apicolateral corner of pro- and mesotibiae, 3) subparallel-sided lateral margins of antennal grooves, 4) rugulous surface of metaventrite and abdominal sternites, 5) triangular scutellum, and 6) meso- and metaventral junction abruptly concave. A phylogenetic analysis of the genera would help to clarify the relationships and limits of these two groups and other cyllodine genera. Etymology. The specific epithet means “beautiful.” Diagnosis. This species differs from its congeners by the following combination of characters: pronotum and elytra different in color; pronotum with a reddish brown to jet black longitudinal maculation; subcoxal lines on abdominal sternite III absent; pro- and mesotarsal segments II and III of males feebly dilated; apical margin of tegmen narrowly rounded or subtruncate in ventral view; median lobe subparallel at basal 2/3, then strongly converging anteriorly in ventral view; apical margin of median lobe narrowly rounded; apex of long, slender gonocoxites deeply incised. Similar Species. This new species is similar to C. laeticulus in the round body and similar shape of pronotal maculation, acuminate apical margin of the median lobe, and similar shape of the sclerites of the internal sac. It can be distinguished by the more acute apical margin of the median lobe and deeply incised apex of the ovipositor. Description. Length 1.79–2.03 (1.87) mm, width 1.43–1.60 (1.55) mm, depth 0.74–0.97 (0.87) mm ( n = 5). Male. Body ( Fig. 1E ) round; dorsal disc of head (except paler apical area), antennal club (except paler apical area of segment XI) and scutellum reddish brown to jet black; mouthparts, antennal segments I–VIII, abdominal tergites, and venter reddish yellow; pronotum reddish yellow, with a reddish brown to jet black longitudinal maculation; elytra reddish brown to jet black, usually darker laterally than medially. Head: Dorsal disc possessing sparse, minute punctures; interspaces reticulate. Labrum feebly notched at middle. Antenna ( Fig. 5G ) with club long and large, ACL/ASI-VIII = 0.88 ( n = 1); antennal segment XI with 2 oval antennal sensillae; approximate ratio of each segment ( n = 1) 4.84: 3.64: 2.69: 1.96: 1.96: 1.02: 1.00: 1.49: 3.95: 4.40: 7.64. Pronotum: 2.38–3.33 (2.94) times as wide as long ( n = 5); disc with sparse, minute punctures; interspaces slightly reticulate. Scutellum: Densely punctate; interspaces slightly reticulate. Elytra: 0.88–0.96 (0.92) times as long as wide ( n = 5), 2.65–3.73 (3.21) times as long as pronotum ( n = 5), widest at basal 1/3; each elytron with 9 regular rows of punctures about as large as eye facet; interstices with sparse minute punctures. Venter: Prosternum feebly convex along midline. Metaventrite strongly convex. Abdominal sternite III without subcoxal lines. Legs: Slender; pro- and mesotarsal segments I–III slightly dilated; tarsal claws simple. Genitalia: Tegmen ( Fig. 5A, C, E ) feebly constricted at mid-length, then moderately convergent apically; TL/TW = 2.39 ( n = 1); apical and lateral margins of tegmen strongly undulating in ventral view; apical margin of tegmen narrowly rounded or subtruncate in ventral view; median lobe ( Fig. 5B, D, F ) subparallel-sided at basal 2/3, then strongly converging anteriorly in ventral view; apical margin of median lobe narrowly rounded; sclerites of internal sac as in Fig. 5B . Female. Pro- and mesotarsal segments I–III more weakly dilated than those of males. Ovipositor ( Fig. 5H ) with deeply incised apices of long, slender gonocoxites. Variability. This species varies in the shape of the apical margin of the tegmen, which may be narrowly rounded, subtruncate, or widely rounded. Distribution. Guyana , Suriname , French Guiana, Brazil , Ecuador , Peru , and Bolivia (Map 1).