The global e-waste problem is becoming increasingly serious. China, as one of the largest producers and consumers of electronic products, still has a low formal recycling rate. Consumers, as the owners of waste electronics, are the key to successful reverse logistics. However, many choose to store or dispose of e-waste at home rather than use official recycling channels. While many previous studies focus on factors that encourage recycling, fewer examine what stops people from taking part. This study applies Valence Theory to identify the factors that increase consumers’ psychological resistance to recycling small e-waste in China’s first-tier cities. It also examines how these factors influence social value and resistance behavior. The research model includes perceived price unfairness, perceived inconvenience, perceived benefits, and information publicity, with social value as a mediator. Data were collected through an online survey of 303 residents in Beijing, Shanghai, Guangzhou, and Shenzhen. Structural equation modeling (SEM) was used for analysis. The results show that perceived inconvenience and perceived benefits significantly influence social value. Perceived price unfairness, perceived inconvenience, and social value significantly affect consumer resistance. These findings expand the application of Valence Theory in e-waste research and address gaps in the Theory of Planned Behavior by considering both perceived risks and benefits. Practically, this study suggests that manufacturers, recyclers, and policymakers should improve recycling facilities, make the process more convenient, ensure fair and transparent pricing, and create targeted measures to reduce consumer resistance and encourage participation in formal recycling systems.

The aphid genus Macromyzus Takahashi is a small East-Asia genus of the tribe Macrosiphini (Hemiptera: Aphidinae). Globally, there are five recognized species: Macromyzus (Anthracosiphoniella) maculatus (Basu), Macromyzus (Macromyzus) indicus David & Narayanan, M. (M.) manoji Raha & Raychaudhuri, M. (M.) spinosus Su & Qiao, and M. (M.) woodwardiae (Takahashi). In this study, we report the first record of the aphid genus Macromyzus Takahashi in Laos. We present a decription of a new species of this genus associated with Diplazium esculentum (Retz.) Sw. (Athyriaceae). Additionally, for the first time, we conducted scanning electron microscopy research on the morphology and sensilla of representative of this genus.

Anoplophora horsfieldii (Hope, 1843), 국명 노랑알락하늘소(가칭)는 아열대 지역에 주로 분포하는 종으로 2019 년에 제주도 용연계곡에서 처음 발견되었으며, 2023년에 국내 정착이 보고되었다. 국내에서는 팽나무에서 발생 하는 것으로 알려졌으나, 섭식방식, 산란 선호성 등 생태적 특성에 대해서는 국내외 연구가 전무하다. 따라서 본 연구에서는 노랑알락하늘소의 기초적인 생태정보를 제공하고자 실내 산란 선호성 조사 및 야외조사를 진행 했다. 산란 선호성 실험은 기주식물로 알려진 팽나무, 멀구슬나무와 제주도내 대표 수종인 동백나무, 종가시나무 을 대상으로 했다. 이 중 팽나무에서만 산란이 확인었으며, 상대적으로 굵은 팽나무에서 더 많은 산란이 확인되었 다. 야외조사에서는 최대 발생지인 용연계곡을 기준으로 반경 3 km 내에서 노랑알락하늘소의 탈출공이 확인된 32 그루의 팽나무를 대상으로 피해를 조사하였다. 나무의 굵기는 흉고직경이 20-40 cm인 팽나무에서 탈출공이 많이 확인되었고, 높이는 지면으로 부터 0-100 cm 구간에서 가장 많은 탈출공이 발견되었다.

The aphid genus Tuberaphis Takahashi belongs to the tribe Cerataphdini (Hemiptera: Hormaphidinae) and comprises 17 valid species. Generally, its species are distributed in East and South East Asia, where they primarily feed on Styrax spp. (Styracaceae) and utilize species within the Loranthaceae family as their secondary hosts. They form various shapes of galls on Styrax, looking coral and broccoli etc. Currently, the only aphid species reported to exclusively produce gall forms resembling broccoli head-shaped is Tuberaphis takeouchii (Takahashi). For the first time in Korea, an aphid species forming gall structures with a broccoli-head-like appearance has been discovered. We confirmed that the species discovered in Korea is a new species through morphological and molecular comparisons with T. takenouchii (Takahashi). To comprehend the life cycle of this new species, we conducted a year-long study investigating how the gall forms change and examined aphid polymorphism across different seasons. The results of this study additionally include as followings: 1) Species identification, 2) DNA barcoding, 3) population genetic analyses, and 4) morphological comparison using SEM