Crowsonium succinium Abdullah, 1964

Alekseev, Vitalii I., Kupryjanowicz, Janusz, Kairišs, Kristaps & Bukejs, Andris, 2020, The first described fossil species of Litargus Erichson (Coleoptera: Mycetophagidae) from Eocene Baltic amber examined with X-ray microtomography, and new records of Crowsonium succinium Abdullah, 1964, Zootaxa 4768 (3), pp. 405-414 : 412

Crowsonium succinium Abdullah, 1964

Material examined. One specimen with collection number AWI-032 [ CVIA], Baltic amber, Yantarny , Kaliningrad region, Russia. Complete beetle included in transparent, yellow amber piece with dimensions of 20×11× 3 mm without any further fixation. Syninclusions consist of minute particles of detritus. Body length of beetle is 2.3 mm, and preserved color is dark brown .

One specimen with collection number AWI-062 [ CVIA], Baltic amber, Yantarny , Kaliningrad region, Russia. Complete beetle included in transparent, yellow amber piece with dimensions of 19×14× 7 mm without any further fixation. The specimen forebody is covered by milky opacity. Syninclusions absent. Body length of beetle is 2.0 mm, and preserved color is black .

One specimen with collection number AWI-066 [ CVIA] ( Figs. 13–15 ), Baltic amber, Yantarny , Kaliningrad region, Russia. Complete beetle included in transparent, yellow amber piece with dimensions of 25×11× 4 mm without any further fixation. Syninclusions absent. Body length of beetle is 2.5 mm, maximum width is 1.0 mm, and preserved color is brown .

Figures

FIGURES 13–15. Photomicrograph of Crowsonium succinium Abdullah, collection number AWI-066 [CVIA]: 13—habitus, dorsal view; 14—habitus, ventral view; 15—apical portion of aedeagus, dorsal view. Total body length is 2.5 mm. Not reproduced to the same scale.