Bambusananus Li & Xing, 2024, 2011

Bambusananus Li & Xing, 2024 View in CoL

Bambusananus Li & Xing, 2011 View in CoL in Li, Dai & Xing, 2011: 44; Zahniser & Dietrich, 2013: 40; Xing & Chen, 2013: 599. Genus unavailable and taxon invalid from 2011 to 2024. (see Remarks).

Bambusananus Li & Xing, 2024 View in CoL , in Dmitriev, Li, Dai & Xing, 2024: 271 View Cited Treatment .

Type species: Bambusananus furcatus Li & Xing, 2024 by subsequent designation.

Diagnosis. External features as in Fig. 1A–D View FIGURE 1 . Yellow with brown markings. Head as wide as pronotum; crown usually slightly longer medially than length next to eyes, rarely similar in length ( B. bispinosus ); ocelli located on anterior margin of crown approximately own diameter from corresponding eye; face wider than long, anteclypeus similar in width basally to apically, antennae situated at level approximately at mid-height of eye. Pronotum 1.5 times longer medially than crown. Male genitalia. Male pygofer lobe elongate, ventral margin at base of lobe with an internal process, directed medially and usually strongly recurved ventrally and sometimes apex protruding beyond margin (see Fig. 1F View FIGURE 1 ), rarely process curved anteriorly ( B. maculipennis ) or straight and directed dorsally ( B. bispinosus ). Valve elongate, triangular. Subgenital plate elongate, broad at base, gradually tapering towards tip. Style elongate, apical process short, curved outwards. Aedeagus with shaft usually laterally compressed with a pair of subapical processes and gonopore apical on ventral surface, rarely shaft tubular with gonopore apical and with either sub-basal processes ( B. yangeae ) or apical and sub-basal processes ( B. bispinosus ); region adjacent to atrial rim (socle) long; basal apodeme usually weakly developed, rarely strongly developed ( B. bispinosus ).

Distribution. Oriental region ( China).

Remarks. Bambusananus was established by Li & Xing (in Li et al. 2011), but the name was invalid because the taxon designated as type species ( B. furcatus ) was also invalid because the type repository was not mentioned in the original description. These shortcomings were subsequently rectified by Dmitriev et al. (2024) who validated the genus by fixing the type species as Bambusananus furcatus Li & Xing, 2024 with type information including depository. Xing & Chen (2013) also proposed changes to the nomenclature of B. lii (McKamey & Hicks) and B. yangae Xing & Chen (see species entries below).

Most species of Bambusananus are morphologically homogeneous but a few species differ from other congeners in the shape of the pygofer processes and structure of the aedeagus. A similar situation exists in the closely related genus Bambusana Anufriev. However , differences do exist between most species of the two genera in the male genitalia. For example, in most species of Bambusananus (except B. maculipennis ) the pygofer process is internal and recurved while in Bambusana the process is less curved and of variable position (see Figs 37, 41, 45 49 in Luo et al. 2019). Also, in Bambusananus the aedeagal shaft is usually laterally flattened with an apical gonopore on the ventral surface and with a pair of processes while in Bambusana the aedeagal shaft is usually tubular with an apical gonopore and without processes. However, two species currently placed in Bambusananus ( B. bispinosus and B. yangae ) have the aedeagus condition found in Bambusana , and one species of Bambusana ( B. biflaka ) has the aedeagus resembling those of Bambusananus species and almost identical to the aedeagus in B. maculipennis . From the above considerations it is clear that further research is needed to elucidate the difference between Bambusana and Bambusananus and to confirm whether they are separate monophyletic genera.

Checklist to species of Bambusananus Li & Xing, 2024

Note: see species entries below for further information on each species.

anhuiensis sp. nov.

binotatus ( Li & Dai, 2003, Sorhoanus ) see B. lii species entry below.

bipunctatus (Li, 1999: 334, Sorhoanus ).

bispinosus Xing & Li, 2016: 269 .

cuihuashanensis Yang & Chen, 2013: 110 .

furcatus Li & Xing, 2024: 45 .

lii ( McKamey & Hicks, 2007: 933, Sorhoanus ).

maculipennis ( Li & Wang, 1993: 54, Sorhoanus ).

yangae Xing & Chen, 2013: 599 .

Key to species of Bambusananus Li & Xing, 2024 View in CoL

Note. The key is modified from Xing & Li (2016).

1. Aedeagal shaft strongly sinuate in lateral view with a pair of apical lamellar processes and pair of small lateral spines present near base, directed apically ( Fig. 2M, N View FIGURE 2 )......................................................... B. bispinosus View in CoL

− Aedeagal shaft straight to slightly curved in lateral view with pair of basal or preapical processes...................... 2

2. Aedeagal shaft with processes arising subbasally ( Fig. 2K, L View FIGURE 2 )........................................... B. yangae View in CoL

− Aedeagal shaft with processes arising distad of midlength..................................................... 3

3. Processes of aedeagal shaft branched ( Fig. 2E, F View FIGURE 2 ).................................................... B. furcatus View in CoL

− Processes of aedeagal shaft not branched................................................................... 4

4. Ventral margin of aedeagal shaft with numerous small teeth ( Fig. 2G, I View FIGURE 2 ).......................................... 5

− Ventral margin of aedeagal shaft without numerous small teeth................................................. 6

5. Aedeagal shaft on ventral margin with single longitudinal row of teeth ( Fig. 2G, H View FIGURE 2 ).............................. B. lii View in CoL

− Aedeagal shaft on ventral margin with many scattered teeth ( Fig. 2I, J View FIGURE 2 )............................... B. maculipennis View in CoL

6. Aedeagal shaft with processes reaching to near base of shaft, base ovoid in posteroventral view ( Fig. 2C, D View FIGURE 2 )................................................................................................... B. cuihuashanensis View in CoL

− Aedeagal shaft with processes not reaching to near base of shaft, base quadrate in posteroventral view.................. 7

7. Aedeagal shaft narrow and attenuate apically in lateral view, apex rounded in posterior view, processes reaching to apical onequarter of shaft ( Fig. 2A, B View FIGURE 2 )................................................................... B. bipunctatus View in CoL

− Aedeagal shaft broad and rounded apically in lateral view, apex bifid in posterior view, processes reaching to midlength of shaft ( Fig. 1L View FIGURE 1 )........................................................................... B. anhuiensis sp. nov.