中国云南省奇春蜓属一新种(蜻蜓目:春蜓科)

记述中国新记录属——奇春蜓属Perissogomphus Laidlaw,1922和1新种——朝氏奇春蜓P.asahinai,sp.nov.,模式标本保存在大理学院。     

云南亚春蜓属一新种(蜻蜓目,春蜓科)

记述亚春蜓属1新种,贡山亚春蜓Asiagomphus gongshanensis sp.nov.,模式标本存放云南大理学院生命科学与化学学院.     

中国小叶春蜓属研究(蜻蜓目,春蜓科)

记述了小叶春蜓属中国的4种及1亚种,描述了其中1新种.间纹小叶春蜓,新种Gomphidia interruptistria sp.nov.(图1～11)正模♂,云南省勐腊县瑶区,海拔1 000 m,2004-07-28,查岭生采.模式标本存放于陕西师范大学动物研究所.文中附有该属在我国的种检索表.新种与G.k.kruegeri及G.k.fukienensis相似,其主要区别见表1.词源:新种的背条纹和领条纹,以及背条纹和肩前上点均完全间断,故取名间纹小叶春蜓.     

陕西省环尾春蜓属一新种（蜻蜓目：春蜓科）

记述采自陕西省汉中市郊的环尾春蜓属1新种：汉中环尾春蜓Lamelligomphus hanzhongensis,sp.nov.,。模式标本存放于山西大学。     

云南钩尾春蜓亚科二新种(蜻蜓目:春蜓科)

记述采白云南省春蜒科2新种：卢氏奈春蜒Nychogomphus lui sp．nov．和文山刀春蜒Scalmogomphus wenshanensis,sp．nov．。模式标本保存于浙江自然博物馆昆虫标本室。     

中国云南奈春蜓属一新种(蜻蜓目,春蜓科)

记述奈春蜓属1新种,二齿奈春蜓Nychogomphus bidentatus sp.nov.,模式标本存放在云南大理学院生命科学与化学学院。     

Emergence pattern,site selection,and seasonal regulation of Onychogomphus costae Selys, 1885 (Odonata: Gomphidae) in northeastern Algeria

Emergence and seasonal regulation of the dragonfly Onychogomphus costae Selys, 1885, were surveyed thoroughly during two consecutive years from two nearby stretches upstream the Seybouse River, northeastern Algeria. The emergence season started in mid-May and lasted 68 and 58 days showing a peak in late May and early June in 2011 and 2012, respectively. During the two years 2011 and 2012, 50% of annual emergence occurred after 25 and 22 days, respectively. Sex ratio was slightly but not significantly male biased. Female exuviae were recorded at higher height than males. Height of the exuviae fixation was positively correlated to support height and head width. Percentage mortality at emergence was mainly due to deformity and predation counting from 7.9% to 9.15% of the total emergent population. The species seasonal regulation is inferred and discussed based on the emergence temporal pattern and larval development.