Cyphocoleus mirabilis (Park & Will) Liebherr, 2016

Liebherr, James K., 2016, Cyphocoleus Chaudoir (Coleoptera, Carabidae, Odacanthini): descriptive taxonomy, phylogenetic relationships, and the Cenozoic history of New Caledonia, Deutsche Entomologische Zeitschrift 63 (2), pp. 211-270 : 238

10. Cyphocoleus mirabilis (Park & Will) comb. n. Figures 30 , 74 , 81 , 100-101 , 105

Atongolium mirabile Park & Will, 2008: 100.

Diagnosis.

This species comprises one-third of a species triplet characterized by anterior and posterior projections on the front and hind angles of the pronotum (Figs 101-103 ), as well as presence of a pelage of setae that are club- or paddle-shaped: i.e. the setae are 2-3 × broader apically that at their base. Cyphocoleus mirabilis is the largest-bodied of the three; standardized body length 6.5-7.0 mm, and also differs by the larger eye size: eyes slightly convex with 12 ommatidia present across a horizontal eye diameter. The apical abdominal ventrite bears a single seta on its apical margin in both males and females of this species, whereas females of the other two species in the triplet - Cyphocoleus moorei and Cyphocoleus lescheni - have two setae each side of the apical ventrite’s apical margin. This species shares with Cyphocoleus lescheni the presence of a lateral marginal carina connecting the two pronotal processes, whereas Cyphocoleus moorei lacks such a carina. Conversely, dark rufous body coloration is shared among individuals of Cyphocoleus mirabilis and Cyphocoleus moorei (Figs 101 , 102 ) versus the pale brunneous and flavous coloration of Cyphocoleus lescheni .

Description

(n = 3). Head capsule elongate, genae subparallel behind eyes and deeply converging at constricted neck; frons with small dimple-like depression medially between eyes, the dimple lined with isodiametric sculpticells; frontal grooves broad and deep, restricted to portion of frons anterad eyes; eyes small and slightly convex, a depressed groove continuous with groove at lateral edge of frons extended from eye dorsum to midpoint of eye hind margin; supraorbital setae absent; mandibles moderately elongate, length 2.0 × distance from antennal articulatory socket to anterolateral margin of labrum; antennal scape broadly fusiform, length 3 × maximal breadth; gena glabrous. Pronotum convex dorsally, with broadly spatulate processes at front and hind angles, the front processes flatter and broader in longitudinal orientation, the posterior processes more hornlike; lateral marginal carina extended and diminished behind posterior process, pronotal median base depressed but not margined; median longitudinal impression finely incised with surface sloping to meet at deepest portion; anterior transverse impression represented by oblique depressions that define an anterior pronotal collar about as wide as neck of head; proepipleuron and proepisternum bulging outward, visible in dorsal view in basal half of pronotal length; proepisternum smooth; prosternal process deeply depressed anterad procoxae, broadly depressed medially on ventral face, and depressed in an inverted “Y” pattern on posterior face resulting in a dorsomedial bump. Elytra only moderately convex overall, scutellum and sutural stria slightly depressed relative to stria 3; at midlength, sutural and fifth interval distinctly elevated, third interval slightly less so but it is also more elevated than intervals 2, 4, and 6; humeri very narrow, the basal groove present only from base of greatly elevated fifth interval to subangulate lateral margin just outside anterior series of lateral elytral setae; parascutellar and dorsal elytral setae absent; lateral elytral setae arranged 6 + 3 + 3, their articulatory sockets papillate, upraised above elytral surface: subapical elytral seta present, apical seta absent; subapical sinuation distinctly concave, the median portion of concavity upraised thereby elevating elytral margin; elytral apices tightly rounded, protruded, a deep invagination between them adjacent to the fused suture. Mesepisternum impunctate; metepisternal dorsal length subequal to diagonal width. Abdomen with very shallow, broad concavity medially on both male and female apical ventrite. Legs moderate, tarsomeres relatively short, mt1 length/tibial length = 0.21; mt4 length to apex of outer lobe 1.2 × median tarsomere length, 3-4 ventrolateral setae each side. Microsculpture absent on vertex except in median dimple; surface of pronotal and elytral disc glossy, indistinct transverse lines over portions of elytral surface; pelage of club-shaped setae well developed; setae on head capsule and pronotal moderately expanded, twice as broad apically as basally; setae broad and paddle-like on prothoracic lateral carina and anterior and posterior pronotal processes; elytra with broad paddle-like setae on sutural, third, and fifth intervals, setae narrower apically on intervals 2, 4, and 6; elytral lateral margin with short paddle-like setae, their length about half that of longer setae on odd intervals; ventral body surface and legs covered with dense pelage of short microsetae, the setae on legs more robust than those on ventrites. Coloration of head capsule dark rufous; antennal segments 1-4 rufobrunneous, outer antennomeres flavous with rufous cast; pronotum, elytra, and thoracic sclerites and abdominal ventrites dark rufous with a piceous cast; femora rufobrunneous, tibiae darker, rufopiceous, tarsi brunneous.

Male genitalia. Male aedeagal median lobe robust, broadly parallel sided in basal half, evenly tapered in distal half to subacuminate tip, dorsoventral breadth at midlength 0.22 × distance from tip to base of closed basal bulb (Fig. 29 ); lobe apex elongate, evenly tapered to subacuminate tip, dorsoventral breadth 0.2 × distance from distal margin of ostial opening to tip.

Female reproductive tract (n = 1). Bursa copulatrix vase-shaped, basally stalked, distance from base of gonocoxites to spermathecal basal sclerite 2 × maximum breadth (dissection compressed under cover slip) (Fig. 105 ); bursal walls thin, translucent, lumen without spicules but bursal surface wrinkled in distal two-thirds; basal gonocoxite with apical fringe of six setae (Fig. 74 ); apical gonocoxite narrowly subtriangular with narrowly rounded apex and two lateral ensiform setae.

Type.

Holotype male (MNHN): NEW CALEDONIA: 21°45'S, 166° 09'E, Ningua Reserve Camp, 1100 m, 12-13.xi.2001, C. Burwell & G. Monteith, pyrethrum, trees & logs, 8639 (not examined; identification based on female paratype (QMB) and non-type male (MNHW))

Distribution and habitat.

Known from across the southern third of New Caledonia, from Col d’Amieu on the north to Rivière des Pirogues on the south (Fig. 81 , Suppl. material 3). All recorded microhabitats include tree trunks and downed logs, with beetles collected using pyrethrin fog. The elongate paddle-shaped setae distributed over the body surface are associated with a thick layer of environmental patina (Figs 100 , 101 ).

Figures

Figures 28 - 33. 28 - 32 Male aedeagus with associated abdominal segments VIII and IX, dorsal view, Cyphocoleus spp.: 28, Cyphocoleus heterogenus; 29, Cyphocoleus angustatus; 30, Cyphocoleus mirabilis; 31, Cyphocoleus cordatus; 32, Cyphocoleus subulatus. 33. Abdominal lateroventrites VIII (left) and laterotergites VIII (right), showing membranous division of laterotergites, male Cyphocoleus latipennis. Dorsal gland reservoir is globose without dorsal lobe. For abbreviations see Table 1.

Figures 66 - 75. Female right gonocoxae, ventral view, for Cyphocoleus spp. illustrating apical fringe setae of basal gonocoxite 1, and two or three lateral ensiform setae, one dorsal ensiform seta, and two apical nematiform setae on apical gonocoxite 2; 66, Cyphocoleus lissus, Mt. Humboldt; 67, Cyphocoleus prolixus, Mt. Humboldt; 68, Cyphocoleus heterogenus, Yahoue; 69, Cyphocoleus parovicollis, Mandjelia; 70, Cyphocoleus ovicollis, Ningua Res.; 71, Cyphocoleus burwelli, Mt. Humboldt; 72, Cyphocoleus monteithi, Mt. Mou; 73, Cyphocoleus miricollis, Foret Nord; 74, Cyphocoleus mirabilis, Mt. Koghi; 75, Cyphocoleus lescheni, apical gonocoxite damaged, Aoupinie. Scale bar, 0.10 mm.

Figures 76 - 81. Distribution maps of Cyphocoleus spp.: 76, Cyphocoleus lissus; 77, Cyphocoleus heterogenus, Cyphocoleus prolixus; 78, Cyphocoleus parovicollis, Cyphocoleus ovicollis; 79, Cyphocoleus burwelli, Cyphocoleus angustatus, Cyphocoleus monteithi; 80, Cyphocoleus miricollis, Cyphocoleus fasciatus; 81, Cyphocoleus mirabilis, Cyphocoleus moorei, Cyphocoleus lescheni.

Figures 99 - 104. Dorsal habitus photographs of Cyphocoleus spp.: 99, Cyphocoleus miricollis, Foret Nord; 100, Cyphocoleus mirabilis female, environmental patina intact, Mt. Koghi; 101, Cyphocoleus mirabilis male, environmental patina removed, Mt. Koghi; 102, Cyphocoleus moorei female, environmental patina removed from forebody and right elytron, E. Table Unio; 103, Cyphocoleus lescheni female, environmental patina removed, elytra reassociated with dissected specimen, Aoupinie; 104, Cyphocoleus fasciatus male, teneral specimen lacking environmental patina, Mt. Panie.

Figures 105 - 112. Female reproductive tract, ventral view, for Cyphocoleus spp.; 105, Cyphocoleus mirabilis, Mt. Koghi; 106, Cyphocoleus fasciatus, Mt. Panie; 107, Cyphocoleus cychroides, Pic d'Amoa; 108, Cyphocoleus latipennis, Mt. Panie; 109, Cyphocoleus cardiopterus, Mt. Mou; 110, Cyphocoleus globulicollis, Col des Roussettes; 111, Cyphocoleus flavipes, Noumea; 112, Cyphocoleus subulatus, Foret de Thi. For abbreviations see Table 1.