Studies on the Stenothemus harmandi species-group (Coleoptera, Cantharidae), with descriptions of two new species from China

The Stenothemus harmandi species-group has 10 species at present. They are S. harmandi (Bourgeois, 1902) (located in N. India, Nepal); S. holosericus Švihla, 2005, S. orbiculatus Švihla, 2005 and S. subnitidus Švihla, 2005 (N. India); S. distortirudis Y. Yang & X. Yang, 2014, S. laticollis Y. Yang & X. Yang, 2014, S. parallelus Y. Yang & X. Yang, 2014 and S. septimus Y. Yang & X. Yang, 2014 (China: Xizang); S. fugongensis Y. Yang & X. Yang, 2014 (China: Yunnan) and S. leishanensis Y. Yang & X. Yang, 2014 (China: Guizhou). In the present study, two previously-known species are classified into this species-group, S. dentatus Wittmer, 1974 and S. alexandrae Švihla, 2004, of which the latter as a subspecies of the former is upgraded to the specific level and another two new species are discovered and described. Two new species of the Stenothemus harmandi species-group are described, S. acuticollis sp. n. (China: Yunnan) and S. nigricolor sp. n. (China: Xizang), which are illustrated with habitus photos and aedeagi of males, abdominal sternites VIII and internal genitalia of females. S. alexandrae Švihla, 2004 stat. n. is upgraded from a subspecies of S. dentatus Wittmer, 1974 and the two species are classified into this species-group. Characters of the female reproductive system are described for the first time for the following species: S. distortirudis Y. Yang & X. Yang, 2014; S. laticollis Y. Yang & X. Yang, 2014; S. leishanensis Y. Yang & X. Yang, 2014; S. orbiculatus Švihla, 2005; S. septimus Y. Yang & X. Yang, 2014 and S. subnitidus Švihla, 2005. Meanwhile, some additional distribution information is added for previously-described species. A key for the identification of all species is updated.

Non-vanishing of class group L-functions for number fields with a small regulator

Let $E/\mathbb {Q}$ be a number field of degree $n$. We show that if $\operatorname {Reg}(E)\ll _n |\!\operatorname{Disc}(E)|^{1/4}$ then the fraction of class group characters for which the Hecke $L$-function does not vanish at the central point is $\gg _{n,\varepsilon } |\!\operatorname{Disc}(E)|^{-1/4-\varepsilon }$. The proof is an interplay between almost equidistribution of Eisenstein periods over the toral packet in $\mathbf {PGL}_n(\mathbb {Z})\backslash \mathbf {PGL}_n(\mathbb {R})$ associated to the maximal order of $E$, and the escape of mass of the torus orbit associated to the trivial ideal class.

The Effect of Ethnicity and Number of Co-Viewers on Affective and Cognitive Identification With Media Characters

This research examines the distinctiveness of two components of identification with media characters: cognitive and affective. It also explores how these components are differentially affected by the viewing environment. In an experiment, Jewish and Arab Israelis watched a clip depicting the Israeli–Palestinian conflict with either one or two Jewish or Arab co-viewers. As hypothesized, these components of identification loaded on different factors and showed different relationships when referring to in-group and out-group characters. Moreover, the Jewish participants showed more affective identification with the Jewish protagonist when watching with two Arabs, which, in turn, affected their attitudes about the in-group.

Children’s and Adults’ Affectionate Generosity Toward Members of Different Religious Groups

This article examines children’s and adults’ willingness to give a nonmonetary resource—affection—to in-group versus out-group members. In a study of attitudes toward Christian, Jewish, and non-religious people, religious participants—children as well as adults—reported that the religious out-group member was more like them and more likeable than the non-religious character, despite the fact that both characters were members of an out-group. Non-religious participants did not distinguish between out-group characters in response to these questions. Although these patterns emerged among both children and adults, we also found that children reported more affection toward Christian characters than did adults. We discuss implications of the results for the study of generosity as well as for intergroup attitudes, religious cognition, and development.