Chinecallicerus, ASSING, 2004

Assing, Volker, 2015, Two new species of Chinecallicerus (Coleoptera: Staphylinidae: Aleocharinae: Geostibini), Linzer biologische Beiträge 47 (1), pp. 249-256 : 250-251

Key to the species of Chinecallicerus

1 Large species, length of body 6.5-7.0 mm. Antennae gradually incrassate, antennomere V distinctly narrower than X ( ASSING 2006: figure 15). Punctation of abdomen conspicuously sparse ( ASSING 2006: figure 19). Male tergites III and IV with distinct tubercle ( ASSING 2006: figures 18-19); tergite VII with U-shaped elevation ( ASSING 2006: figure 20); median lobe of aedeagus approximately 0.7 mm long ( ASSING 2006: figures 23-24). Spermatheca as in ASSING (2006: figure 27). Northwest Yunnan ( Map 1 ).......................................................................................................... wrasei ASSING

- Smaller species, lenth of body <5.8 mm. Antennomeres V-X of subequal width, V not distinctly narrower than X. Punctation of anterior abdominal tergites moderately dense. Male tergites III and IV unmodified; tergite VII with tubercle of different shape; median lobe of aedeagus much smaller, <0.6 mm (note that the males of C. schuelkei and C. reticulatus are unknown).........................................................................................2

2 Whole forebody with pronounced microsculpture, practically matt ( Figs 1-2, 4 , 10-11, 13 ). Head and pronotum with barely noticeable punctation. East Yunnan .........................3

- Forebody with some shine; at least head or elytra with superficial microculpture. Head and/or pronotum mostly with more distinct punctation. West Yunnan ..............................4

3 Maxillary palpi blackish-brown, except for the needle-shaped palpomere IV. Body smaller; length of forebody 2.0 mm. Head approximately as long as broad ( Fig. 1 ). Eyes smaller, approximately as long as distance from posterior margin of eye to posterior constriction of head ( Fig. 1 ). Antenna much shorter, approximately 1.75 mm long; antennomeres V-X approximately as broad as long and IV weakly transverse ( Fig. 3 ). Pronotum more transverse, 1.1 times as broad as long ( Fig. 1 ). Posterior margin of male tergite VIII truncate in the middle ( Fig. 6 ). Median lobe of aedeagus as in Figs 8-9 . Northeast Yunnan ( Map 1 )........................................................ subater nov.sp.

- Maxillary palpi yellowish. Body larger; length of forebody 2.4 mm. Head 1.15 times as broad as long ( Fig. 10 ). Eyes larger, longer that distance from posterior margin of eye to posterior constriction of head ( Fig. 10 ). Antennae longer, approximately 2.4 mm long; all antennomeres distinctly oblong ( Fig. 12 ). Pronotum 1.06 times as broad as long ( Fig. 10 ). Spermatheca as in Fig. 15 . Southeast Yunnan ( Map 1 )......... reticulatus nov.sp.

4 Coloration paler: anterior abdominal segments, abdominal apex, and antennae yellowish brown to reddish brown. Eyes weakly bulging and smaller, distinctly shorter than postocular region in dorsal view. Elytra with granulose punctation and weak longitudinal elevation on either side of suture ( ASSING 2004: figure 8). Spermatheca as in ASSING (2004: figure 13). Northwest Yunnan ( Map 1 )......................... schuelkei ASSING

- Coloration darker: abdomen and antennae blackish brown to blackish. Eyes bulging and larger, approximately as long as postocular region in dorsal view. Elytra with fine, not distinctly granulose punctation.....................................................................................5

5 Antennae longer, antennomere IV approximately as long as wide, V-X oblong ( ASSING 2006: figure 3). Elytra at suture distinctly longer than pronotum. Coloration of legs dark yellowish. Abdominal tergite VII with sparse punctation also in anterior half. Posterior margin of male tergite VIII produced in the middle and somewhat truncate, but not distinctly serrate ( ASSING 2006: figure 8). Median lobe of aedeagus 0.53 mm long, shaped as in ASSING (2006: figures 10-11). West Yunnan ( Map 1 ). ............................. .............................................................................................................. laevigatus ASSING

- Antennae shorter, antennomere IV wider than long, V-X approximately as long as wide ( ASSING 2009: figure 3). Elytra approximately as long as pronotum ( ASSING 2009: figure 2). Coloration of legs brown. Abdominal tergite VII virtually impunctate in anterior half ( ASSING 2009: figure 4). Posterior margin of tergite VIII serrate ( ASSING 2009: figure 5); median lobe of aedeagus smaller, 0.44 mm long, and shaped as in ASSING (2006: figure 7). West Yunnan ( Map 1 )................................. serratus ASSING

Figures

Map 1: Distribution of Chinecallicerus in Yunnan: C. wrasei (filled diamond); C. schuelkei (open circle); C. laevigatus and C. serratus (both filled circle); C. subater (open diamond); C. reticulatus (star).

Figs 1-9: Chinecallicerus subater nov.sp.: forebody (1); median portion of head (2); antenna (3); postero-median portion of pronotum (4); abdomen (5); male tergite VIII (6); male sternite VIII (7); median lobe of aedeagus in lateral view (8); median lobe of aedeagus in ventral view (9). Scale bars: 1, 3, 5: 0.5 mm; 6-9: 0.2 mm; 2, 4: 0.1 mm.

Figs 10-15: Chinecallicerus reticulatus nov.sp.: forebody (10); median portion of head (11); antenna (12); postero-median portion of pronotum (13); abdomen (14); spermatheca (15). Scale bars: 10, 12, 14: 0.5 mm; 15: 0.2 mm; 11, 13: 0.1 mm.