Redescription of Apomyelois cognata (Staudinger, 1871) (Lepidoptera, Pyralidae, Phycitinae) with first record from the South Urals

Until recently, Apomyelois cognata (Staudinger, 1871) was known only from the type series collected 150 years ago in the Lower Volga region, as well as old records from Iran and Cyprus (the latter unconfirmed). In 2011 and 2020, more specimens of this little-known species were collected in the South Urals (Russia), presenting a new record for the area. The species identity was confirmed via examination of syntypes preserved in the Museum für Naturkunde, Berlin. A lectotype designation for the species is made and a detailed redescription with illustrations of male and female genitalia is given.

Understanding Roman London

This chapter reviews the theoretical and methodological approaches that have been applied to the archaeological study of Roman London. It explores the role and relevancy of inductive and hypothetico-deductive research methodologies, contrasting the research directions taken by academics and professional fieldworkers. The chapter then describes the evolution of current approaches to stratigraphic excavation, including the pioneering approaches to open-area urban excavation developed by the archaeologists of the Museum of London. Attention is then given to how relative and absolute chronologies are established, giving emphasis to the exceptional importance of both dendrochronology and pottery type-series. A brief review of the research environment concludes by questioning the relevance of ‘Romanization’ as a concept for the study of Roman London. It is explained how the goal of this study is to use the wealth of descriptive documentation now available to understand how and why London changed through time. This justifies the adoption of a more traditional approach to the use of archaeological results to reconstruct historical narrative.

The definitive rediscovery of Telmatobius halli (Anura, Telmatobiidae) at its historic type locality and its synonymy with T. dankoi and T. vilamensis

Telmatobius halli was the first representative of its genus to be described exclusively for Chile, yet for 85 years no new individuals could be located due to the vagueness with which its type locality was described. The type series was collected by one of the members of the International High Altitude Expedition to Chile (IHAEC) of 1935. Recently, three studies successively claimed to have located the type locality in different places. The third study proved, according to the chronicles of the IHAEC, that the actual locality is Miño, at the origin of the Loa River, where currently there are no published records of Telmatobius. In this study, additional documentary antecedents and graphic material are provided that corroborate that Miño is indeed the type locality of T. halli. Additionally, the recently rediscovered Telmatobius population from Miño and the environment it inhabits are described. The external characteristics of the frogs are consistent with the description of T. halli. Furthermore, molecular phylogenetic analyses were performed that showed that T. halli, T. dankoi, and T. vilamensis, all known only from their type localities in Chile, comprise a clade without internal resolution. A detailed comparison of the diagnoses of the three species revealed that the few phenotypic differences between these taxa were based on characteristics that vary widely within and between populations of the genus, hence their conspecificity is proposed. The implications of this synonymy for the taxonomy, biogeography, and conservation of the Telmatobius from the extreme south of its distribution in Chile are discussed.

A Subclass of Janowski Starlike Functions Involving Mathieu-Type Series

To date, many interesting subclasses of analytic functions involving symmetrical points and other well celebrated domains have been investigated and studied. The aim of our present investigation is to make use of certain Janowski functions and a Mathieu-type series to define a new subclass of analytic (or invariant) functions. Our defined function class is symmetric under rotation. Some useful results like Fekete-Szegö functional, a number of sufficient conditions, radius problems, and results related to partial sums are derived.

Revalidation, synonymies, and notes in American Callichromatini (Coleoptera, Cerambycidae, Cerambycinae)

The unpublished formal synonymy of Callichroma chiriquina Bates, 1879, C. opiparum Bates, 1874, C. compressipes Casey, 1912, and C. regalis Casey, 1912 is commented. Schwarzerion carinatum Schmidt, 1924 is removed from the synonym of Callichroma holochlorum holochlorum Bates, 1872, and transferred to the synonymy of Callichroma euthalia Bates, 1879. The species group name “euthalium” is corrected. The type-localities of Schwarzerion carinatum are reported as Colombia and West Indies, and the institution where one of the syntypes is deposited is corrected. Callichroma collarti Fuchs, 1959 is revalidated, and Callichroma magnificum Napp & Martins, 2009 is considered its junior synonym. The status of the specimens of the type series of Callichroma collarti is commented. Additionally, the holotype of Callichroma opiparum Bates, 1874, and the lectotype of Callichroma chiriquina Bates, 1879 are illustrated for the first time.

Some BBP-type series for polylog integrals

An investigation into a family of definite integrals containing log-polylog functions will be undertaken in this paper. It will be shown that Euler sums play an important part in the solution of these integrals and may be represented as a BBP-type formula. In a special case we prove that the corresponding log integral can be represented as a linear combination of the product of zeta functions and the Dirichlet beta function.

A new species and a new record of the ant genus Ooceraea Roger, 1862 (Hymenoptera: Formicidae: Dorylinae) from Thailand

Currently, 16 species of the genus Ooceraea Roger, 1862 are known from the Oriental, Australian and Oceanian realms, but no identified species have ever been recorded from Thailand. Here Ooceraea siamensis sp. n. is described from Thailand based on the worker and dealate queen. The new species is most similar to O. biroi (Forel, 1907), a species widely distributed across tropical and subtropical regions of the world, but can be distinguished from the latter by postpetiole slightly longer than broad in dorsal view (clearly shorter than broad in O. biroi), by foveae on first gastral tergite and sternite denser and coarser (weak in O. biroi), and by smaller size (head width in new species 0.33–0.38 mm while in O. biroi 0.46–0.49 mm). The type series of the new species was collected from a colony in soil and partly in a coconut seed. Ooceraea duadridentata Yamada, Luong et Eguchi, 2018 is recorded from Thailand for the first time.