甘肃兴隆山国家级自然保护区粉蝶多样性研究

在甘肃兴隆山国家级自然保护区,选取5个林场:(a)官滩沟林场,(b)麻家寺林场,(c)兴隆山林场,(d)马坡林场,(e)上庄林场做为样地,共采集粉蝶标本306号,对粉蝶科(Pieridae)昆虫进行了多样性研究。结果表明,所采粉蝶隶属于3亚科6属12种。其中豆粉蝶属(Colias)4种133只,云粉蝶属(Pontia)1种28只,粉蝶属(Pieris)3种66只,绢粉蝶属(Aporia)1种4只,钩粉蝶属(Gonepteryx)2种74只,小粉蝶属(Leptidea)1种1只。即豆粉蝶属的种类和数量均为最多、粉蝶属次之。小粉蝶属和绢粉蝶属均只有1种,是该保护区的稀有属种。首次计算并分析了保护区5个林场中粉蝶科昆虫的多样性指数、物种丰富度、优势度指数、均匀度指数。不同林场之间各指数存在明显差异,说明生境的变化对粉蝶科昆虫乃至蝴蝶的多样性产生了明显的影响。     

沙棘木蠹蛾防治技术

吴起县的沙棘面积达到12.53万hm2,全县受沙棘木蠹蛾危害的面积4647.22hm2,分布于9个乡镇,以周湾、长城两乡镇最为严重,虫口密度平均单株达15头以上,危害最重的单株虫口近70多头,幼虫啃食根干,导致根干部腐烂直至死亡。沙棘木蠹蛾的防治技术主要包括平茬更新复壮、化学防治、林分结构调整、采用灯光诱杀和性引诱剂诱杀等方法。     

Notes on genus Eurydoxa Filipjev （Lepidoptera： Tortricidae） in China

Genus Eurydoxa Filipjev in China is reviewed and noted for the first time. Based on the present study, two species are recognized, including rhodopa Diakonoff and advena Filipjev. All available information for the species is reviewed and provided.     

Removing an exotic shrub from riparian forests increases butterfly abundance and diversity

Invasive plants are one of the greatest threats to endangered insect species and a major threat to Lepidoptera in eastern North America. We investigated the effects of the invasive shrub Chinese privet (Ligustrum sinense) and two methods (mulching or hand-felling) of removing it from riparian forests on butterfly communities and compared them to untreated, heavily invaded control plots and to “desired future condition” forests that never had extensive privet cover. Privet mulching resulted in nearly twice as many butterflies as privet felling and both treatments had more butterflies two years after privet removal than untreated control plots. Butterfly communities on control plots differed from those on the two treatments and the desired future condition forests. A number of forest characteristics were evaluated but only herbaceous plant cover (excluding privet) was positively correlated with butterfly abundance, diversity and evenness. The Carolina satyr, Hermeuptychia sosybius, was the best indicator of forests where privet had never invaded. Removing Chinese privet from riparian forests in the southeastern United States greatly improved forest habitats for butterflies and evidence suggests that butterfly communities in other temperate forests could benefit from removal of extensive shrub layers dominated by a single species.     

Does butterfly diversity predict moth diversity? Testing a popular indicator taxon at local scales

Indicator taxa are often proposed as efficient ways of identifying conservation priorities, but the correlation between putative indicators and other taxa has not been adequately tested. We examined whether a popular indicator taxon, the butterflies, could provide a useful surrogate measure of diversity in a closely related but relatively poorly known group, the moths, at a local scale relevant to many conservation decisions (10⁰-10¹ km²). We sampled butterflies and moths at 19 sites representing the three major terrestrial habitats in sub-alpine Colorado: meadows, aspen forests, and conifer forests. We found no correlation between moth and butterfly diversity across the 19 sites, using any of five different diversity measures. Correlations across only meadow sites (to test for correlation within a single, species-rich habitat) were also not significant. Butterflies were restricted largely to meadows, where their host plants occur and thermal environment is favorable. In contrast, all three habitats contained substantial moth diversity, and several moth species were restricted to each habitat. These findings suggest that (1) butterflies are unlikely to be useful indicators of moth diversity at a local scale; (2) phylogenetic relatedness is not a reliable criterion for selecting appropriate indicator taxa; and (3) a habitat-based approach would more effectively conserve moth diversity in this landscape and may be preferable in many situations where indicator taxa relationships are untested.     

中国柞树主要害虫名录(Ⅲ)

记述了鳞翅目(Lepidoptera)灯蛾科(Arctiidae)和夜蛾科(Noctuidae)的柞树主要害虫75种,分别介绍了害虫的中文名称、学名、寄主种类及在我国的主要分布区域,为有效控制灯蛾类、夜蛾类柞树主要害虫的发生与危害提供相关的基础信息。     

杂夜蛾亚科2种幼虫形态记述（鳞翅目：夜蛾科）

详细记述了中国甜菜夜蛾Spodoptera exigua（Hübner） 和稻蛀茎夜蛾Seasamia inferens （Walker） 幼虫的形态特征,并提供了形态特征图。图2参9