A new species of \u3ci\u3ePhilacelota\u3c/i\u3e Heller (Scarabaeidae: Melolonthinae: Melolonthini) from Flores Island, Indonesia

Philacelota jakli sp. n. (Scarabaeidae: Melolonthinae: Melolonthini) is described, illustrated and compared with the other two known congeners, P. submaculata Heller and P. sulana Heller. Philacelota sub maculata is here designated the type species for the genus

Addendum and update to Zidek (2020):Catalogue of species-group names assigned to \u3ci\u3eCopris\u3c/i\u3e Geoffroy, \u3ci\u3eCoptodactyla\u3c/i\u3e Burmeister, \u3ci\u3eLitocopris\u3c/i\u3e Waterhouse, \u3ci\u3eMicrocopris\u3c/i\u3e Balthasar, \u3ci\u3eParacopris\u3c/i\u3e Balthasar, \u3ci\u3ePseudocopris\u3c/i\u3e Ferreira, \u3ci\u3ePseudopedaria\u3c/i\u3e Felsche, \u3ci\u3eSinocopris\u3c/i\u3e Ochi, Kon and Bai, and \u3ci\u3eThyregis\u3c/i\u3e Blackburn (Coleoptera: Scarabaeidae: Scarabaeinae: Coprini)

The catalogue of species-group names of nine coprine genera (Coleoptera: Scarabaeidae: Scarabaeinae: Coprini), published earlier this year, is updated and revised. Presented are species-group taxa overlooked in compiling the catalogue and new species-group taxa described in 2020, i.e. after the cut-off date of the catalogue

Kansas Hamilton Quarry (Upper Pennsylvanian) Acanthodes, with remarks on the previously reported North American occurrences of the genus

48 p., 7 pl., 15 fig.http://paleo.ku.edu/contributions.htm

A new species of \u3ci\u3ePhilacelota\u3c/i\u3e Heller (Scarabaeidae: Melolonthinae: Melolonthini) from Flores Island, Indonesia

Philacelota jakli sp. n. (Scarabaeidae: Melolonthinae: Melolonthini) is described, illustrated and compared with the other two known congeners, P. submaculata Heller and P. sulana Heller. Philacelota sub maculata is here designated the type species for the genus

Nanosecond compressive fluorescence lifetime microscopy imaging via the RATS method with a direct reconstruction of lifetime maps

RAndom Temporal Signals (RATS) method has proven to be a useful and versatile method for measuring photoluminescence (PL) dynamics and fluorescence lifetime imaging (FLIM). Here, we present two fundamental development steps in the method. First, we demonstrate that by using random digital laser modulation in RATS, it is possible to implement the measurement of PL dynamics with temporal resolution in units of nanoseconds. Secondly, we propose an alternative approach to evaluating the FLIM measurements based on a single-pixel camera experiment. In contrast to the standard evaluation, which requires a lengthy iterative reconstruction of PL maps for each timepoint, here we use a limited set of predetermined PL lifetimes and calculate the amplitude maps corresponding to each lifetime. The alternative approach significantly saves post-processing time and, in addition, in a system with noise present, it shows better stability in terms of the accuracy of the FLIM spectrogram. Besides simulations that confirmed the functionality of the extension, we implemented the new advancements into a microscope optical setup for mapping PL dynamics on the micrometer scale. The presented principles were also verified experimentally by mapping a LuAG:Ce crystal surface

Review of the Gymnopleurini (Coleoptera: Scarabaeidae: Scarabaeinae). III. Asian species of Garreta Janssens

The genus Garreta Janssens (Coleoptera: Scarabaeidae: Scarabaeinae) is defi ned and a checklist of and a key to the Asian species-group taxa are presented

Review of the Gymnopleurini (Coleoptera: Scarabaeidae: Scarabaeinae). III. Asian species of Garreta Janssens

The genus Garreta Janssens (Coleoptera: Scarabaeidae: Scarabaeinae) is defi ned and a checklist of and a key to the Asian species-group taxa are presented

Review of Synapsis Bates (Scarabaeidae: Scarabaeinae: Coprini), with description of a new species

Presented are a checklist, a discussion of and keys to species groups and their constituent species, and a description of one new species: Synapsis horaki. The species Synapsis cambeforti Krikken and S. thoas Sharp are synonymized with S. ritsemae Lansberge, Balthasar’s synonymy of S. yunnana Arrow with S. tridens Sharp is revived, and the status of six recently described species is left unresolved because of insufficient data

Random temporal laser speckles for robust measurement of sub-microsecond photoluminescence decay

Time-resolved photoluminescence (PL) is commonly used to track dynamics in a broad range of materials. Thus, the search for simplification of the acquisition of PL kinetics attracts continuous attention. This paper presents a new robust and straightforward approach to the measurement of PL decay, which is based on randomly fluctuating excitation intensity. The random excitation waveform is attained by using laser speckles generated on a rotating diffuser. Owing to this, the presented technique is able to utilize any coherent excitation source without the necessity to generate short pulses or to controllably modulate the light. PL decay can be computationally reconstructed from the Fourier image of the PL trace. The paper demonstrates the performance of the method, which is able to acquire sub-microsecond dynamics as the impulse response function reaches 300 ns. The reconstructed PL decays were compared to streak camera measurements to verify the method. Finally, potential limitations and applications of the technique are discussed