3D face registration based on principal axis analysis and labeled regions orientation

A novel multi-view 3D face registration method based on principal axis analysis and labeled regions orientation called local orientation registration is proposed.The pre-registration is achieved by transforming the multi-pose models to the standard frontal model＇s reference frame using the principal axis analysis algorithm.Some significant feature regions, such as inner and outer canthus, nose tip vertices, are then located by using geometrical distribution characteristics.These regions are subsequently employed to compute the conversion parameters using the improved iterative closest point algorithm, and the optimal parameters are applied to complete the final registration.Experimental results implemented on the proper database demonstrate that the proposed method significantly outperforms others by achieving 1.249 and 1.910 mean root-mean-square measure with slight and large view variation models, respectively.

A new species of the genus Panorpa L. (Mecoptera: Panorpidae) from the Daba Mountains of central China

Panorpa biclada, a new species of Panorpidae （Mecoptera）, is described and illustrated from the Daba Mountains of central China. It can be readily distinguished by the blackish thoracic nota with a light median stripe; forewings with only a prominent pterostigmal band at most in female, and no markings in male; the dorsal valve of aedeagus bifurcated medially into a short ventral branch and a long curved dorsal branch; the female genital plate with the main plate recurved ventrad into an arc-shaped lobe at the base, and the axis divergent broadly at the basal half.

A new species of Thysanarthria Orchymont from China,with the first record T.bifida(Coleoptera:Hydrophilidae)in Vietnam

A new species,Thysanarthria rara sp.nov.,is described from China(Hunan,Guangdong).A photo of male genitalia of the new species is provided.This is the third known species in this genus from China.A key to all species known from China is given.T.bifida Fikáček,2019 is recorded for the first time from Vietnam(Tonkin,Hoa-Binh).

Review of the genus Panorpa Linnaeus from the Nanling Mountains with descriptions of three new species(Mecoptera:Panorpidae)

The scorpionfly fauna of the genus Panorpa Linnaeus,1758 in the Nanling Mountains,southern China is reviewed,including three new species:Panorpa filititilana sp.nov.from Mangshan,Panorpa muricata sp.nov.from Jintongshan and Mao’ershan,and Panorpa yuechenglingensis sp.nov.from Mao’ershan.The species number of Panorpa is raised to 13 in the Nanling Mountains region.A key to species of Panorpa in the Nanling Mountains is provided.

Eleven new species in the genus Amiota(Diptera:Drosophilidae)from Southwest China

Based on morphological and molecular evidences,eleven new species in the genus Amiota(Diptera:Drosophilidae)from Southwest China are described:Amiota gigantomelania sp.nov.,A.medidehiscentia sp.nov.,A.multiprocessa sp.nov.,A.nigripes sp.nov.,A.semiannulata sp.nov.,A.brevifoliacea sp.nov.,A.uncinata sp.nov.,A.bifoliacea sp.nov.,A.geisson sp.nov.,A.nulliseta sp.nov.and A.policladia sp.nov.The Automatic Barcode Gap Discovery(ABGD)method was employed to assess the limits of closely related species.In addition,A.dilatifemorata Cao&Chen,2008 from Sichuan and Yunnan is recognized as a junior synonym of A.atomia Máca&Lin,1993 from Taiwan.

Strategic Path for the Development of Live Pig Healthy Breeding Industry in China

The objective of study in the paper was to analyze advantages, disadvantages, opportunities and threats of development of pig healthy agriculture in China, using systematic analysis and SWOT strategic analysis, as well as to show severe diseases, abnormal fluctuation, misplaced way and versatile environment confronted by pig breeding in China. The paper establishes ＂double-hug mode＂, from which pig breeding industry transforms and upgrades to modern breeding industry. Combing with the designed multi-party cooperation mechanism of advantageous regions, urban sale areas and group corporations, it sets up three paths for development of pig healthy agriculture in China, i.e., strategic paths of advantageous regions, urban sale areas and group corporations oriented, with an attempt to provide strategic path reference for transformation and upgrading of pig breeding in China and mode reference for breakthrough of development strategy for pig healthy industry.

Two newly recorded species of the genus Sora(Coleoptera:Tenebrionidae:Lagriinae),with redescription of two known species from China

Two species,Sora barapanica Merkl,2019 and Sora marmoreipennis Merkl,2019,are newly recorded from China.Sora mimica(Pic,1912)and Sora thibetana(Pic,1914)are redescribed with illustrations of type specimens provided for the first time.Sora mimica var.testaceipennis(Pic,1912)is proposed as a synonym of Sora mimica.

A new species of Drosophila obscura species group(Diptera: Drosophilidae) from China

A new species of the Drosophila obscura species group is described here, namely Drosophila glabra sp. nov. It was recently found from the Maoershan National Nature Reserve, Guangxi, China. The characteristics of the new species are based not only on morphological characters but also on DNA sequences of the mitochondrial C0II （cytochrome c oxidase subunit II） gene.

A spectacular new antlion species of the subfamily Dendroleontinae(Neuroptera:Myrmeleontidae)from Malaysia

A new species of the antlion subfamily Dendroleontinae,namely Layahima weiweii sp.nov.,is described.The new species appears to be closely related to L.wuzhishana(Yang,2002),which is herein re-described in detail.These two closely related species are compared based on morphological and molecular data.

Radiation of the Oriental phlebotomine sand flies （Diptera： Psychodidae）

The historical biogeography ofphlebotomine sand fly taxa Hertigia, Warileya, Phlebotomus （Idiophlebotomus）, R （Spelaeophlebotomus）, P. （Anaphlebotomus）, and P. （Euphlebotomus） and the Phlebotomus （Euphlebotomus） argentipes species complex was investigated using phylogenetic inference from comparative genital morphology, distribution of ancestral taxa, fossil evidence and geological age. Idiophlebotomus and Euphlebotomus occur in the Oriental region with one species from northeast Australia, whereas Anaphlebotomus occurs both in the Afro-tropical and Oriental regions. These disjunct distribution patterns across the Oriental region and the present day distribution are likely to be vicariance due to break of Gondwanaland. Fossil records, extant taxa distribution, phylogenetic analysis of the Old World Phlebotominae and paleogeography suggest that ancestors ofldiophlebotomus and Euphlebotomus originated apparently in the Cimmerian continent of northern margin of Gondwanaland in the early Permian （290 million years ago, MYA） and subsequently radiated in the Mesozoic by tectonic vicariance. The Phlebotomus argentipes species complex occurs in the South and South-east Asian countries and transmits the protozoan parasite Leishmania donovani that causes visceral leishmaniasis （Kala-azar） in India, Bangladesh and Nepal. The phylogeography ofP. argentipes was caused through vicariance followed by dispersal events from 50 MYA （the Eocene） until the Recent era.