Revision of the genera of Picrotini (Coleoptera: Cryptophagidae: Cryptophaginae) Author Gimmel, Matthew L. Santa Barbara Museum of Natural History, 2559 Puesta del Sol Rd, Santa Barbara, CA 93105 USA; e-mail: phalacrid @ gmail. com Author Leschen, Richard A. B. New Zealand Arthropod Collection, Manaaki - Whenua Landcare Research, Private Bag 92170, Auckland, New Zealand; text Acta Entomologica Musei Nationalis Pragae 2022 Acta. Ent. Mus. Natl. Pragae 2022-06-21 62 1 61 109 http://dx.doi.org/10.37520/aemnp.2022.006 journal article 10.37520/aemnp.2022.006 1804-6487 7161221 42A5070B-F287-4B14-84A1-A57F7E274CE6 Chimaerocryptus johnsoni sp. nov. ( Figs 18 , 77 ) Type material. Hඈඅඈඍඒඉൾ: female ( CMN ), labeled:“CHILE:40kmWAngol NahuelbutaNat. Pk. 9.XII.84-17.II.85 S&J. Peck, 1200-1500m FITS Nothofagus – Araucariafor”. Pൺඋൺඍඒඉൾ: CHILE : Mൺඅඅൾർඈ Pඋඈඏංඇർൾ: 40 km W Angol, Nahuelbuta NP, 1200–1500 m , Nothofagus / Araucaria forest, FIT, 9 December 1984 – 17 February 1985 , S. & J. Peck (1 slide mounted, CMN ). Diagnosis. This is the only known member of the genus; therefore, it may be recognized by the characters given in the generic diagnosis above. Description. Length 1.80–1.85 mm . Color of body ( Fig. 18 ) light brown, legs and mouthparts lighter. Dorsal setae uniformly golden, vestiture converging to midline of pronotum, strongly undulating subbasally on elytra, weakly undulating subapically, pronotum and elytra with decumbent setae long, appearing longer on the pronotum and base of the elytra. Ventral surfaces with recumbent setae, prosternal meso- and metaventral setae about as long as those on the dorsum, abdominal setae shorter; densely punctate on most ventral surfaces, more diffuse laterally on prothorax and lateral sclerites; prosternal process with suberect setae with large punctures; punctation of metaventrite slightly less dense than that of prosternum, uniform; abdominal ventrites 1 and 2 with punctures as dense as metaventrite, ventrites 3 and 4 less dense, ventrite 5 densely micropunctate, bearing a patch of centrally-directed setae. Head punctate with smooth and shiny interspaces. Antennomere 2 subconical with apex wider than base, longer than wide, antennomere 3 conical, longer than wide and as long as 2, antennomere 4 smaller and shorter than 3 and longer than 5; antennomere 11 longer than 10, distinctly shorter than 9 and 10 combined. Pronotal length/width ratio ~0.68 ( Fig. 77 ), widest at middle (or at tips of posterior angles), wider across posterior angles than across anterior angles; lateral edges subparallel, convergent apically, anterior angles not projecting, posterior angles strongly projecting and right, posterior margin weakly bisinuate, with truncate scutellar lobe; disc with a deep transverse basal impression; paralateral plicae absent; pronotal punctation similar to that of frons but slightly larger and more regular over much of the disc, punctures separated by less than one puncture diameter, with smooth and shiny interspaces, punctures more or less uniform, weakening laterally. Elytra about 1.53× longer than combined width, about 1.50× wider than pronotum at greatest width, about 3.36× longer than pronotum at greatest length; punctation dense to moderately dense, punctures separated by 0.5 to 4 puncture diameters, denser near basal margin, sparser on disc; sutural stria present; disc with distinct transverse subbasal impression. Etymology. Patronymic for the late Colin Johnson (1943–2021; Manchester Museum, England ), world renowned microcoleopterist and cryptophagid worker extraordinaire (Dൾඇඇංඌ 2022).