Pseudochillus

Fouquè, René, 2015, A review of the genera Indostola, Tagenostola, Indochillus, Pseudethas, and Pseudochillus gen. nov. in South East Asia (Coleoptera: Tenebrionidae: Stenosini), Acta Entomologica Musei Nationalis Pragae 55 (1), pp. 217-242 : 240-241

publication ID	https://doi.org/ 10.5281/zenodo.5304649
publication LSID	lsid:zoobank.org:pub:A312F12F-AC13-4BA7-88B4-5CBA3AF18367
DOI	https://doi.org/10.5281/zenodo.6402592
persistent identifier	https://treatment.plazi.org/id/0B7387FB-FFA7-FF89-64AA-FF03FBB7FDB0
treatment provided by	Marcus
scientific name	Pseudochillus
status

Treatment

Key to Pseudochillus species and allied genera of the subtribe Dichillina

1 Tempora concave. Occiput with sharply bordered triangular impression with mid-longitudinal keel. Body length 6.1 mm. – Figs 5 View Figs 5–9 , 17 View Figs 17–26 , 29 View Figs 27–36 . ................. Indochillus Koch, 1941

– Tempora convex. Occiput without sharply bordered triangular impression and mid-longitudinal keel. ................................................................................................................. 2

2 Epipleura without punctures. Elytral intervals usually flat, interval 7 may form low carina, each elytron very rarely with 3 carinae but in this case humeral corners absent. ....... ...................................................................................... Dichillus Jacquelin du Val, 1861

– Epipleura with rows of punctures which sometimes join at the end in groove. Elytra usually with keeled intervals 3, 5, 7 and 9, sometimes all intervals only slightly convex, or rarely flat and only lateral intervals slightly convex. ................................................. 3

3 With suborbital keel on inner side of eye, sometimes slightly reduced. ........................ 4

– Suborbital keel completely absent. ............................................................................... 12

4 Clypeus concave with small tooth. ................................................................................. 5

– Clypeus convex or straight, without tooth. .................................................................... 9

5 Suborbital keel prominent. Tempora 1.5–2.0 times longer than eye length. Junction of elytral intervals 7 and 9 forming a small obliquely directed humeral corner. Pseudochillus (s. str.). ..................................................................................................................... 6

– Suborbital keel reduced. Tempora at most as long as eye length. Elytra without humeral corners. Pseudochillus (Micropseudochillus) . .............................................................. 7

6 Body black. Pronotum without mid-longitudinal impression. Punctures on epipleura very fine and hardly visible. Body length 6.2 mm. – Figs 6 View Figs 5–9 , 15, 16 View Figs 10–16. 10–12 , 18 View Figs 17–26 , 30 View Figs 27–36 , 39 View Figs 37–43 . .............. ....................................................................... P. (s. str.) bangaloreanus ( Kaszab, 1981)

– Body brown. Pronotum with mid-longitudinal impression. Punctures on epipleura somewhat smaller than in row 10. Body length 4.0– 4.5 mm. – Figs 7 View Figs 5–9 , 19 View Figs 17–26 , 31 View Figs 27–36 , 40 View Figs 37–43 . .................. ................................................................................................. P. (s. str.) aalbui sp. nov.

7 Elytral intervals 3, 5, 7 and 9 serrate. Setae on intervals long and erected. ................... 8

– Elytral intervals smooth. Setae on intervals short and close-fitting. Body length 3.9 mm. – Figs 12, 13 View Figs 10–16. 10–12 , 26 View Figs 17–26 , 36 View Figs 27–36 , 43 View Figs 37–43 . ................................................ P. (M.) indochinensis sp. nov.

8 Setae on elytral intervals thin and pointed. Punctures of elytral rows shallow with distances between punctures in row equal to puncture diameter. Occiput with mid-longitudinal impression. Body length 3.9 mm. – Figs 11 View Figs 10–16. 10–12 , 25 View Figs 17–26 , 35 View Figs 27–36 , 42 View Figs 37–43 . ... P. (M.) thailandicus sp. nov.

– Setae on elytral intervals thick, widest at truncate top. Punctures of elytral rows deep, with distances between punctures in row less than half of puncture diameter. Occiput without impression. Body length 3.1–3.8 mm. – Figs 10 View Figs 10–16. 10–12 , 24 View Figs 17–26 , 34 View Figs 27–36 , 41 View Figs 37–43 . .............................. ............................................................................................... P. (M.) palawanus sp. nov.

9 Elytral base narrower than pronotal base. Pseudochillus (Kaszabochillus) . .............. 10

– Elytral base wider than pronotal base. ......................................................................... 11

10 Pronotum with mid-longitudinal impression, lateral margins without punctures. Body length 3.9 mm. – Figs 9 View Figs 5–9 , 14 View Figs 10–16. 10–12 , 21 View Figs 17–26 , 33 View Figs 27–36 . ............................................ P. (K.) helferi sp. nov.

– Pronotum without mid-longitudinal impression, pronotum also laterally punctate. Body length 4.0–5.0 mm. – Figs 8 View Figs 5–9 , 20 View Figs 17–26 , 32 View Figs 27–36 . ....................... P. (K.) andamanus ( Kaszab, 1981)

11 Pronotum with mid-longitudinal impression (sometimes only slightly developed). Elytral base considerably wider than pronotal base. Elytra parallel-sided. Middle and posterior tibiae in males with apical tooth on inner side. ............ Pseudethas Fairmaire, 1896

– Pronotum without mid-longitudinal impression. Elytral base slightly wider than pronotal base. Elytra oval. Tibiae in both sexes without apical tooth on inner side ........................ ........................................................................................... Herbertfranzia Kaszab, 1973

12 Base of elytra wider than base of pronotum (sometimes only slightly); elytral interval 9 forming humeral corner. ............................................... Herbertfranziella Kaszab, 1973

– Base of elytra as wide as base of pronotum; elytral interval 9 not forming humeral corner. ................................................................................. Nepalofranziella Fouquè, 2013