Cuccodorodes, Yin, 2018
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publication ID |
https://doi.org/ 10.2478/aemnp-2018-0027 |
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publication LSID |
lsid:zoobank.org:pub:72E7EE6C-593C-4ECD-A400-40E7851720C4 |
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DOI |
https://doi.org/10.5281/zenodo.5061035 |
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persistent identifier |
https://treatment.plazi.org/id/CF6F4925-FFB0-FF82-A663-FAC4E2A48FD1 |
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treatment provided by |
Felipe |
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scientific name |
Cuccodorodes |
| status |
gen. nov. |
Cuccodorodes View in CoL gen. nov.
( Figs 1–6 View Fig View Fig View Fig View Fig View Fig View Fig )
Type species. Cuccodorodes darjeelingensis View in CoL sp. nov. (here designated).
Comparative diagnosis. At present Cuccodorodes cannot be placed near any known genus of the Indomalayan Batrisini . The relationship of the new genus to other members of the group is difficult to discern given the extensive amount of homoplasy in Batrisitae ( LÖBL & KURBATOV 2001). Members of Cuccodorodes are probably confined to the Himalayan region due to the complete absence of functional wings. The concept of the new genus is based on a unique combination of many peculiar external characters, notwithstanding that these may be homoplasious in other batrisine genera: head rounded-triangular in shape, lacking distinct frontal rostrum, vertex with a distinct reversed U-shaped sulcus connecting nude foveae, temples rounded, eyes small; antennal clubs loosely assembled by apical three antennomeres. Pronotum roundly expanded laterally, narrowing at the apex and base, disc with three basolateral foveae, and five longitudinal sulci, lateral pair of sulci strongly sinuate, densely setose and broadening in basal half, overlapping small lateral antebasal foveae, transverse antebasal sulcus absent, lacking antebasal and discal tubercles, ventral surface of pronotal lateral expansion deeply sulcate. Elytra small, much narrower than abdomen, strongly constricted at the base, each elytron with single basal fovea, lacking discal striae; lacking metathoracic wings; abdomen large, all foveae densely setose; tergite 1 (IV) longest, much longer than tergite 2 (V), with thin, oblique inner and thick outer marginal carinae, tergite 1 (IV) with four, and sternite 2 (IV) with eight basal foveae which are connecting internally. Male has mesotibia spinose at the apex, sternite 2 (IV) decorated with arched median projection. Female has strongly sclerotized genital complex.
Description. Body length 2.93–3.26 mm; habitus ( Figs 1–2 View Fig View Fig ) stout, antennae relatively short, not reaching half elytral length when angled posteriorly.
Head ( Figs 3A, 3C, 3E View Fig , 4 View Fig A–C) rounded-triangular; lacking distinct frontal rostrum, antennal tubercles strongly raised; vertexal foveae ( Fig. 4A View Fig ; vf) nude and small, connected by complete reversed U or V-shaped sulcus ( Fig. 4A View Fig ; vs); with 11 antennomeres, clubs loosely formed by three apical antennomeres, antennomeres XI elongate and conical; ocular-mandibular carinae ( Fig. 4B View Fig ; omc) distinct; eyes small; maxillary palpus with trapezoid palpomeres III, palpomeres IV narrowed at apex and base; punctiform gular foveae ( Fig. 4C View Fig ; gf) in shared round opening.
Pronotum ( Figs 3A, 3C, 3E View Fig , 4D View Fig ) transverse, lateral margins roundly expanded near middle, narrowing at apex and base, anterior and posterior margins slightly curved; lateral antebasal foveae ( Fig. 5A View Fig ; laf) small, covered by dense setae and not visible in dry specimens, median antebasal fovea ( Fig. 4D View Fig ; maf) tiny and obscure, lacking discal or antebasal spines/tubercles; disc convex; with three pairs of basolateral foveae ( Figs 4D View Fig , 5A View Fig ; blf) and one pair of basolateral pits ( Fig. 5A; p View Fig ); median ( Figs 4D View Fig , 5A View Fig ; mls), discal ( Figs 4D View Fig , 5A View Fig ; dls), and lateral ( Figs 4D View Fig , 5A View Fig ; lls) longitudinal sulci present, lateral pair of sulci strongly sinuate, densely setose and broadening in basal half, lacking transverse antebasal sulcus; prosternite with distinct paranotal sulci ( Fig. 4E View Fig ; ps); ventral side of lateral expansion deeply sulcate; opening of lateral procoxal foveae ( Fig. 4E View Fig ; lpcf) at base of broad, setose sulci.
Elytra ( Figs 1–2 View Fig View Fig ) strongly constricted at base; each elytron ( Fig. 4F View Fig ) with one basal fovea ( Fig. 4F View Fig ; bef), lacking subbasal fovea, lacking discal stria, with complete sutural stria, thin marginal carina present in posterior half of lateral side.
Mesoventrite with median foveae ( Fig. 5B View Fig ; mmsf) in transverse opening, with large lateral mesoventral foveae unforked internally ( Fig. 5B View Fig ; lmsf), with oval mesoventral foveae, metaventrite with lateral foveae ( Fig. 5B View Fig ; lmtf), posterior margin with narrow notch at middle; metacoxae well-separated.
Abdomen with lateral margins of visible tergite 1 (IV) produced as thick, triangular ridge edged by thin inner and thick marginal carinae; tergites 2–3 (V–VI) with lateral margins similarly edged; tergite 4–5 (VII–VIII) lacking marginal carinae; tergite 1 (IV) longest, 2–3 (V–VI) distinctly shorter and subequal in length, 4 (VII) longer than 3 (VI); tergite 1 (IV) with one pair of mediobasal ( Fig. 5C View Fig ; mbf) and one pair of basolateral foveae ( Fig. 5C View Fig ; blf), lacking discal carinae and basal impression, tergites 2–4 (V–VII) each with one pair of basolateral foveae. Visible sternite 2 (IV) with one pair of mediobasal ( Fig. 5C View Fig ; mbf) and three pairs of basolateral foveae ( Fig. 5C View Fig ; blf) in broad, setose basolateral sulci, sternites 3–4 (V–VI) each with two pairs of basolateral foveae, and sternite 5 (VII) with one pair of basolateral foveae. All foveae of abdomen densely setose, those of tergite 1 (IV) and sternite 2 (IV) deep and connecting internally ( Fig. 5C View Fig ).
Legs relatively stout; tarsomeres II and III subequal in length.
Male has relatively longer antennae than female ( Fig. 1 View Fig ); mesotibia with one tubercle ( Fig. 4G View Fig ; at) and two small spines ( Fig. 4G View Fig ; as) at apex; sternite 2 (IV) ( Figs 3B, 3D, 3F View Fig ) modified with arched median projection ( Figs 3B, 3D, 3F View Fig , 5C View Fig ; mp); sternite 7 (IX) semi-membranous ( Figs 6A, 6D, 6G View Fig ); aedeagus ( Figs 6 View Fig B–C, 6E–F, 6H–I) with parameres fused to median lobe to form elongate ventral lobe, with large basal capsule and foramen, with well-developed basoventral projection. Female genital complex composed of strongly sclerotized structure ( Figs 5 View Fig D–E).
Etymology. The new genus is named in honor of Dr. Giulio Cuccodoro, who has offered support and help during my visits to Geneva. The gender is masculine.
Key to males of Cuccodorodes
Notes. The three new species described below are exceptionally similar in external morphology, and probably restricted to a small area in eastern Nepal and northern India ( Fig. 7 View Fig ). Reliable species identification of additional material from this region requires an examination of the aedeagus.
1 Vertexal sulcus evenly convergent anteriorly, more or less V-shaped ( Fig. 3C View Fig ); sternite 2 (IV) with area surrounded by median projection broadly triangular ( Fig. 3D View Fig ). ( Nepal: Koshi; Fig. 7 View Fig ). ............................... ................................................. C. koshiensis View in CoL sp. nov.
– Vertexal sulcus truncate anteriorly, more or less U-shaped ( Figs 3A, 3E View Fig ); sternite 2 (IV) with area surrounded by median projection narrowly triangular ( Figs 3B, 3F View Fig ). .......................................................... 2
2 Median area of sternite3 (V) distinctly microsculptured ( Fig. 3B View Fig ); membranous basal half of sternite 7 (IX) obliquely and lengthily elongate ( Fig. 6A View Fig ); aedeagus in ventral view lacking narrowly elongate sclerite at left side ( Fig. 6C View Fig ). ( India: Darjeeling; Fig. 7 View Fig ). ........... ........................................ C. darjeelingensis View in CoL sp. nov.
– Median area of sternite 3 (V) lacking microsculpture ( Fig. 3F View Fig ); membranous basal half of sternite 7 (IX) roundly expanded ( Fig. 6G View Fig ); aedeagus in ventral view with narrowly elongate sclerite at left side ( Fig. 6I View Fig ). ( Nepal: Mechi; Fig. 7 View Fig ). .............. C. weiperti View in CoL sp. nov.
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