The present paper deals with ten new species and one new record species of the Genus Bibio Geoffroy from China. The type specimens are kept in the Insect Collections of Beijing Agricultural University. 1. Bibio parvis...The present paper deals with ten new species and one new record species of the Genus Bibio Geoffroy from China. The type specimens are kept in the Insect Collections of Beijing Agricultural University. 1. Bibio parvispinalis, sp. nov. (fig, 1) This new species is very similar to B. tenebrosus Coquilletti, but can be distinguished from the latter by the antenna 12-segmented, the last segment of palpi two times longe than wide, the spina of the front tibia rather sharp pointed, the tergum 9 of the展开更多
We show that a class of spectral problems are related to the spectral problem of the Volterra lattice through a gauge transformation. The transformation is given. We hope that our discussion can draw attention to the ...We show that a class of spectral problems are related to the spectral problem of the Volterra lattice through a gauge transformation. The transformation is given. We hope that our discussion can draw attention to the study of gauge transformation theory of differential-difference integrable systems.展开更多
We collected five specimens of threadfin bream from Beihai, Guangxi, China in March 2010. These were subsequently identified as red filament threadfin bream Nemipterus marginatus (Valenciennes, 1830), being the first ...We collected five specimens of threadfin bream from Beihai, Guangxi, China in March 2010. These were subsequently identified as red filament threadfin bream Nemipterus marginatus (Valenciennes, 1830), being the first record of this species from Chinese waters. N. marginatus is distinguished by the following characteristics: lower border of eye lies above a line from tip of snout to upper base of pectoral fin; mouth oblique, maxillary extending to lower anterior border of pupil; teeth in jaws in several rows, pointed; upper jaw with 3 to 5 pairs of small recurved canines; suborbital with straight lower edge and rounded posterior edge; pectoral fins extending to between level of anus and origin of anal fin; pelvic fins reaching to the first or second anal rays; caudal fin forked, upper lobe tails into a short reddish filament; dorsal fin bluish with a yellow margin distally and a broad yellow median band which subdivides posteriorly into 3 small bands.展开更多
The year 2012 is the one that carries far-reaching importance to China’s development course.Within the year,the Chinese people worked with concerted efforts,overcame obstacles and difficulties,and recorded outstandin...The year 2012 is the one that carries far-reaching importance to China’s development course.Within the year,the Chinese people worked with concerted efforts,overcame obstacles and difficulties,and recorded outstanding progress for the reform an opening-up as well as modernization,so that social and economic development presented a sound posture with some progress in the process of maintaining stability,and people’s livelihood was continuously improved.展开更多
文摘The present paper deals with ten new species and one new record species of the Genus Bibio Geoffroy from China. The type specimens are kept in the Insect Collections of Beijing Agricultural University. 1. Bibio parvispinalis, sp. nov. (fig, 1) This new species is very similar to B. tenebrosus Coquilletti, but can be distinguished from the latter by the antenna 12-segmented, the last segment of palpi two times longe than wide, the spina of the front tibia rather sharp pointed, the tergum 9 of the
基金Supported by the National Natural Science Foundation of China under Grant No 11371241
文摘We show that a class of spectral problems are related to the spectral problem of the Volterra lattice through a gauge transformation. The transformation is given. We hope that our discussion can draw attention to the study of gauge transformation theory of differential-difference integrable systems.
基金Supported by the National Natural Science Foundation of China(Nos.41006084,31172053,31061160187)the Natural Science Foundation of Guangdong Province of China(No.10152408801000013)
文摘We collected five specimens of threadfin bream from Beihai, Guangxi, China in March 2010. These were subsequently identified as red filament threadfin bream Nemipterus marginatus (Valenciennes, 1830), being the first record of this species from Chinese waters. N. marginatus is distinguished by the following characteristics: lower border of eye lies above a line from tip of snout to upper base of pectoral fin; mouth oblique, maxillary extending to lower anterior border of pupil; teeth in jaws in several rows, pointed; upper jaw with 3 to 5 pairs of small recurved canines; suborbital with straight lower edge and rounded posterior edge; pectoral fins extending to between level of anus and origin of anal fin; pelvic fins reaching to the first or second anal rays; caudal fin forked, upper lobe tails into a short reddish filament; dorsal fin bluish with a yellow margin distally and a broad yellow median band which subdivides posteriorly into 3 small bands.
文摘The year 2012 is the one that carries far-reaching importance to China’s development course.Within the year,the Chinese people worked with concerted efforts,overcame obstacles and difficulties,and recorded outstanding progress for the reform an opening-up as well as modernization,so that social and economic development presented a sound posture with some progress in the process of maintaining stability,and people’s livelihood was continuously improved.
