瓦氏阿猎蝽--中国和越南的新记录属与种(半翅目:猎蝽科)

瓦氏阿猎蝽Agyrius watanabeorum为日本半翅目学者石川忠2002年根据采自泰国北部的标本所命名,其描记较为详细,配有正模的整体黑白照片和部分特征图,但对该种的阳茎结构没有提及。在研究中国和越南的猎蝽时,我们发现了该种。本文中我们重新描述了瓦氏阿猎蝽,绘制了较详细的整体图和局部特征图。阿猎蝽属Agyrius Stal,1863为中国和越南的新记录属,瓦氏阿猎蝽Agyrius watanabeorum Ishikawa,2002为中国和越南的新记录种;其在中国和越南的分布也是该属种最北的分布记录。     

中国盗猎蝽属一新记录种——红缘盗猎蝽(半翅目:猎蝽科:盗猎蝽亚科)

狭义的盗猎蝽属是猎蝽科盗猎蝽亚科中1个较大的属,已知约40个有效种,主要分布于古北区、东洋区和非洲区,中国已知6种.我们在对新疆半翅目多样性的研究过程中,发现了广布于古北区的红缘盗猎蝽Peirates hybridus(Scopoli,1763).本文重新描述了这一中国新记录种;该种体中型,体表大部分区域黑色,革片、侧...     

我国盲蝽科二新种及一新记录(半翅目：盲蝽科)

我国盲蝽科二新种及一新记录（半翅目：盲蝽科）能乃扎布,照日格图（内蒙古师范大学呼和浩特０１００２２）（内蒙古教育学院呼和浩特０１００１０）作者在整理甘（肃）、宁（夏）、蒙（内蒙古）盲蝽科Ｍｉｒｉｄａｅ标本时,发现植盲蝽属ＰｈｙｔｏｃｏｒｉｓＦａｌｌｌ...     

中国黄足猎蝽属厘订(半翅目:猎蝽科:盗猎蝽亚科)

本文记述黄足猎蝽属一新种——黑胸黄足猎蝽Sirthenea melanota sp.nov.,并与两个已知种——黄足猎蝽S.flavipes(Stal)及半黄足猎蝽S.dimidiata Horvath——进行了详细的比较。除黄足猎蝽外,其发音沟及雄性外生殖器构造均为首次记载。此外,指出S.clavata Miller可能是黄足猎蝽apicalis变型的同物异名。新种的鉴别特征是:黑色,光亮;头背面全为红黄褐色,前胸背板全为黑色;近似S.leonina Horvath,但其前翅色斑区别明显;体躯量度见表2;模式标本保存于西北农业大学昆虫博物馆。     

内蒙古长蝽科昆虫新种新记录记述(半翅目:长蝽科)

作者在研究内蒙古长蝽科标本时,发现长蝽科2个新种：阿拉善叶缘长蝽Emblethis alashanensissp.nov.,巴氏直缘长蝽Ortholomus batui sp.nov.,1个中国新记录属：弯齿长蝽属Raglius Stal,1872,3个中国新记录种：弯齿长蝽Raglius aboacuminatus(Goeze),蒙毛角长蝽Hyalocoris mongolicus Kerzhner,东方林长蝽Drymus orientalis Kerzhner。模式标本保存于内蒙古师范大学昆虫研究所标本馆。     

中国植盲蝽属四新种记述 (半翅目:盲蝽科)

记述半翅目盲蝽科盲蝽亚科Mirinae植盲蝽属Phytocoris Fallén 4新种.即卧龙植盲蝽Ph.wolongensissp.nov.,正模产地为四川理县卧龙;永平植盲蝽Ph.yongpinganus sp.nov.,正模产地为云南永平龙门;武定植盲蝽Ph.wudingensis sp.nov.,正模产地为云南武定万松山;角斑植盲蝽Ph.exohataensis sp.nov.,正模产地为云南景东哀牢山徐家坝.     

中国狄猎蝽族一新属──杨猎蝽属（半翅目：猎蝽科）

中国狄猎蝽族一新属──杨猎蝽属（半翅目：猎蝽科）彩万志（北京农业大学昆虫学系,北京市海淀区１０００９４）狄猎蝽族是真猎蝽亚科的１个小族;连同本文中的新属,目前该族共知１０属,均分布于东洋区;Ｍｉｌｌｅｒ（１９５４）曾对此族进行过比较详细的厘订。这里所...     

Evolutionary History of Assassin Bugs (Insecta: Hemiptera: Reduviidae): Insights from Divergence Dating and Ancestral State Reconstruction

Assassin bugs are one of the most successful clades of predatory animals based on their species numbers (∼6,800 spp.) and wide distribution in terrestrial ecosystems. Various novel prey capture strategies and remarkable prey specializations contribute to their appeal as a model to study evolutionary pathways involved in predation. Here, we reconstruct the most comprehensive reduviid phylogeny (178 taxa, 18 subfamilies) to date based on molecular data (5 markers). This phylogeny tests current hypotheses on reduviid relationships emphasizing the polyphyletic Reduviinae and the blood-feeding, disease-vectoring Triatominae, and allows us, for the first time in assassin bugs, to reconstruct ancestral states of prey associations and microhabitats. Using a fossil-calibrated molecular tree, we estimated divergence times for key events in the evolutionary history of Reduviidae. Our results indicate that the polyphyletic Reduviinae fall into 11–14 separate clades. Triatominae are paraphyletic with respect to the reduviine genus Opisthacidius in the maximum likelihood analyses; this result is in contrast to prior hypotheses that found Triatominae to be monophyletic or polyphyletic and may be due to the more comprehensive taxon and character sampling in this study. The evolution of blood-feeding may thus have occurred once or twice independently among predatory assassin bugs. All prey specialists evolved from generalist ancestors, with multiple evolutionary origins of termite and ant specializations. A bark-associated life style on tree trunks is ancestral for most of the lineages of Higher Reduviidae; living on foliage has evolved at least six times independently. Reduviidae originated in the Middle Jurassic (178 Ma), but significant lineage diversification only began in the Late Cretaceous (97 Ma). The integration of molecular phylogenetics with fossil and life history data as presented in this paper provides insights into the evolutionary history of reduviids and clears the way for in-depth evolutionary hypothesis testing in one of the most speciose clades of predators.     

甘肃南部异蝽科昆虫调查及区系初步研究(半翅目:异蝽科)

本文报道了2007～2010年间采自甘肃南部的半翅目异蝽科标本,经鉴定共有3属20种。本次调查所得的种类中,以东亚分布型为最多,约占全部种属的2/3,东洋分布型约占1/4,古北分布型本次调查所得的种类最少,只占1/10左右。说明甘肃南部具有较强的东亚区系特色,反映了此地区地处生物地理学中极具中国固有特色的东亚区系发祥地——中国中部和中西部地区的地理特点。其中有甘肃省新纪录7种,分别是光华异蝽Tessaromerus licenti Yang,亮壮异蝽Urochela distincta Distant,短壮异蝽Urochela falloui Reuter,黑足壮异蝽Urochela rubra Yang,褐壮异蝽Uroechla punctata Hsiaoet Ching,绿娇异蝽Urostylis genevae Maa和匙突娇异蝽Urostylis striicornis Scott。     

First record of the genus Adelphocorisella Miyamoto and Yasunaga (Hemiptera: Miridae) from Korea

Adelphocorisella lespedezae Miyamoto and Yasunaga, 1993 , which was previously known only from Japan, is reported from Korea for the first time and diagnosed. An image of its dorsal habitus as well as illustrations of the male genitalia are provided. The discovery of the mirid species also represents the first distributional record in Korea as well as the continental Palaearctic Region for the genus Adelphocorisella Miyamoto and Yasunaga, 1993 .     

Aggression and risk assessment during predatory interactions between first-instarSinea diadema (Fabricius) (Hemiptera: Reduviidae)

The behaviors exhibited by first-instarSinea diadema (F.) (Hemiptera: Reduviidae) during intraspecific interactions are described. Five distinct behaviors were characterized: posturing, striking, stalking, stridulating, and beaking. Distinct bouts of grappling were also noted. Interactions between unfed 2-day-old nymphs, unfed 3-day-old nymphs, and unfed 5-day-old nymphs were recorded and analyzed. The behavior of the nymphs changed with the duration of food deprivation. As the period of food deprivation increased from 2 to 5 days, the frequency of posturing decreased as the frequency of beaking increased. During noncannibalistic interactions, posturing or striking by one nymph was most frequently followed by posturing by the other nymph. In contrast, during cannibalistic interactions, posturing or striking was usually followed by beaking. The incidence of grappling increased with the duration of food deprivation. Moreover, grappling always preceded cannibalism. Although first instars were capable of capturing and killing conspecifics of the same age, cannibalism occurred only after 4 days of food deprivation. These results suggest that a decision-making process is involved. During interactions the nymphs can assess the vulnerability of the opponent. Whereas recently emerged nymphs usually forego the risk of attacking conspecifics, the attacks made by nymphs deprived of food are more persistent despite the danger of predation by their opponent.     

The effect of hunger on intraspecific interactions between first-instarSinea diadema (Hemiptera: Reduviidae)

Fed and unfed first instars of the spined assassin bugSinea diadema were paired to evaluate the effects of food deprivation on their behaviour during encounters. Fed nymphs encountering starved 5-day-old nymphs retreated from 69% of the encounters after contacting the starved nymph. In contrast, starved nymphs initiated grappling during 30% of the encounters with fed nymphs and retreated significantly less often than the fed nymphs. When a single fed nymph was placed together with two unfed 3-day-old nymphs in a closed arena, the fed nymphs generally were not the first nymph cannibalized and were the final survivors in 67% of 24 replicates. These results are discussed in the context of the relative costs and benefits of escalating or retreating from encounters.     

A new species and a new record of the genus Balanococcus Williams(Hemiptera:Coccoidea:Pseudococcidae) from China

A new species and a new record of the genus Balanococcus Williams are described from China.They are B.zhejiangensis sp.nov.and B.kwoni Pellizzari Danzig,2007.The new species,collected from Zhejiang,China under leaf sheath of Phyllostachys praecox,is similar to B.kwoni Pellizzari Danzig,but can be distinguished by its hind coxa inflated,and only small type of oral collar tubular ducts present on dorsal surface.A key to Chinese species of Balanococcus is given.All specimens examined are deposited in the Insect Collection of Beijing Forestry University.     

New record of Trisuloides rotundipennis Sugi (Lepidoptera: Noctuidae: Pantheinae) from Korea

In the present study, a noctuid species, Trisuloides rotundipennis Sugi, is reported for the first time from Korea. External characteristics and female genitalia and habitus of this species are illustrated, and information on host plant and distributional range is provided.