The strongly dimorphic bark beetle genus Pseudomicracis (Coleoptera, Scolytinae) in Madagascar-an integrated taxonomic revision Author Jordal, Bjarte H. text Zootaxa 2022 2022-04-11 5125 3 325 343 journal article 56069 10.11646/zootaxa.5125.3.5 da274829-479f-4ea1-8f2e-1e598de786b8 1175-5326 6443876 4645A035-17E6-488C-8F10-DA66E146487D Key to the Malagasy species of Pseudomicracis 1 Antennal scapus small, rounded, with few setae; most species with interstrial setae truncated, many species with rugose to granulated interstriae on posterior part of elytra, some of these with larger tubercles (males).......................... 2 - Scapus triangularly extended dorsally, sometimes more strongly elongated into a spike; interstrial setae spatulate, rarely truncated; elytral cuticle generally smooth (females)........................................................... 11 Males 2 Posterolateral margin of declivity with a series of large tubercles, each much larger than antennal club, declivity flattened; antennal club>1.5 × longer than wide, sutures obscure....................................................... 3 - Elytral declivity smooth or at most with posterolateral rim of small granules; antennal club <1.3× as long as wide........ 5 3 One pair of tall, narrow ridges on lower two thirds of declivity located on interstriae 4–5.................... P. pennata - Posterolateral margin of declivity with a series of nodules..................................................... 4 4 Declivital margin with 6–7 subequal nodules..................................................... P. tomicoides - Declivital margin with 2–3 much larger nodules on interstriae 4–6........................................ P. dispar 5 Elytral interstriae coarsely granulated or tuberculate, interstrial setae curved and spatulate; stout species, <2.5 × as long as wide.............................................................................. P. verrucosa , sp. nov. - Elytral interstriae at most only finely granulated and rugose, setae erect, truncated; body>2.6 × as long as wide.......... 6 6 Posterolateral margin of declivity with a granulated rim; elytral apex very broadly mucronate........ P. coronata , sp. nov. - Declivital margin smooth; elytral apex narrowly mucronate................................................... 7 7 Anterior margin of pronotum with 4–6 narrowly separated raised teeth.......................................... 8 - Anterior margin of pronotum smooth or with scant irregular granules........................................... 10 8 Antennal club with only weakly procurved sutures.............................................. P. atra , sp. nov. - Antennal club with strongly procurved sutures.............................................................. 9 9 Interstrial setae uniseriate, interstriae 1 with only broad scale-like setae; eyes separated above by 2.5 × their width............................................................................................ P. lauricola , sp. nov. - Interstrial setae slightly confused, interstriae 1 with broad scale-like setae and fine setae along the suture which are similar to those in striae; eyes separated above by <2× their width........................................ P. pilosa , sp. nov. 10 Eyes normal, separated above by about 3 × their width; all interstriae with uniseriate setae........... P. madagascariensis - Eyes large, separated above by <1.5 × their width; interstria 1 with confused setae, other interstriae uniseriate............................................................................................. P. vitrioculata , sp. nov. Females 11 Antennal club elongated, sutures obscure; body <2.6 × as long as wide......................................... 12 - Antennal club only slightly longer than broad, with two distinctly procurved sutures marked by setae; body>2.7 × as long as wide.............................................................................................. 14 12 Setae on elytral interstriae and posterior part of pronotum dagger-shaped; mucro on elytral apex in lateral view taller than long....................................................................................... P. pennata - Setae either bristle-like or spatulate; mucro longer than tall................................................... 13 13 Frons densely setose, setae long; sutures on antennal club not visible; setae on declivital interstriae confused.. P. tomicoides - Frons with short and well separated setae; sutures on club obscurely marked, procurved; setae on declivital interstriae uniseriate.......................................................................................... P. dispar 14 Frons lightly concave, along dorsal margin with a broad projecting tuft of setae................... P. madagascariensis - Frons flattened or convex, vestiture scant................................................................. 15 15 Interstrial and strial setae confused on and near interstriae 1..................................... P. pilosa , sp. nov. - All strial and interstrial setae in uniseriate rows............................................................ 16 16 Elytral apex (mucro) extended, base of mucro very broad, almost half the with of elytra............. P. coronata , sp. nov. - Elytral apex not extended, base of mucro about one-quarter as wide as elytra..................................... 17 17 Scapus extended dorsally into a short spike; interstrial setae equally distributed from base to apex of elytra..... P. lauricola , sp. nov. - Scapus triangular, not taller than long; interstrial setae mainly on declivity................................ P. difficilis