| Trichoptera is also known as caddisfly,its larvae occure in all kinds of fresh waters,with a high diversity of species and wide geographic distribution.As they are sensitive to pollutants in water,they are widely used as significant indicators of water quality.The larvae are an important component in the community structure of freshwater ecosystem and in aquatic food chains.The number of caddisflies in China is about 1300 species,approximately 8.9%of the world species.Compared to the numerous known adults,the number of known larvae is about 85 species,about 6.5%of the known adults.Among them,larvae of 48 species were described by foreign authors,larvae of 37 species were described by Chinese authors.The proportion of described larvae with respect to the known adults in China was much less than that in North America(about 47.0%),Japan(about 30.6%)and Russia(about 53.4%).The situation hinders the trichopteran taxonomy from its application in water biomonitoring.In addition,the male genitalia in some sibling species does not show obvious difference to distinguish them.Therefore,taxonomic study on caddisworm can help to diagnose the caddisflies,and can provide more morphological data for building the phylogenetic relationships within the order.The speciemen,which collected from Zhejiang(34 samples),Sichuan(3 samples)and Anhui Provinces(1 samples),are totally 4200 individuals.Based on DNA barcoding technology,286 COI genes(658 bp)were applied to make larval-adult association of Chinese Trichoptera.Of larvae of(how many)species successfully associated with the adults,larvae of 27 speices are described for the frist time,larvae of 5 species are re-described;Among them,2 families,4 genera and 13 species belong to Annulipalpia;8 families,10 genera and 12 species belong to Integripalpia;and 3 families,4 genera and 7 species belong to Spicipalpia.The general characters of Trichoptera larvae are presented,and descriptions and illustrationa of 32 species are provided in detail,including diagnostics characters,figures,distribution in China for each species.In total,112 species are recognized from China,approximately 8.6%of the Chinese adult species.The described larvae are listed as follows:Hydropsychidae,12 species:Hydropsyche:(1)Hydropsyche arion Malicky&Chantaramongkol,2000;(2)Hydropsyche columnata Martynov,1931;(3)Hydropsyche formosana Ulmer,1911:(4)Hydropsyche grahami Banks,1940;(5)Hydropsyche rhomboana Martynov,1909;(6)Hydropsyche simulata Mosely,1942;(7)Hydropsyche trifora Li&Tian,1990;Cheumatopsyche:(8)Cheumatopsyche sp.1;(9)Cheumatopsyche wangi sp.nov;(10)Cheumatopsyche sp.3;(11)Cheumatopsyche trifascia Li,1988;Parapsyche:(12)Parapsyche sp.1;Psychomyiidae,1 species:Paduniella:(13)Paduniella communis Li&Morse,1997;Apataniidae,1 species:Apatidelia:(14)Apatidelia acuminata Leng&Yang,1998;Brachycentridae,1 species:Micrasema:(15)Micrasema fanuel Malicky,2012;Goeridae,1 species:Goera:(16)Goera fissa Ulmer,1926;Leptoceridae,5 species:Ceraclea:(17)Ceraclea sp.1;Mystacides:(18)Mystacides elongata Yamamoto&Ross,1966;Setodes:(19)Setodes brevicaudatus Yang&Morse,1989;(20)Setodes schmidi Yang&Morse,1989;(21)Setodes sp.1;Limnephilidae,1 species:Pseudostenophylax:(22)Pseudostenophylax sp.1;Molannidae,1 species;Molanna:(23)Molanna moesta Banks,1906;Odontoceridae,1 species:Psilotreta:(24)Psilotreta sp.1;Uenoidae,1 species:Uenoa:(25)Uenoa lobata(Hwang,1957);Glossosomatidae,1 species:Agapetus:(26)Agapetus zniachtl;Hydroptilidae,2 species:Hydroptila:(27)Hydroptila thuna Olah,1989;(28)Hydroptila sp.1;Rhyacophilidae,4 species:Himalopsyche:(29)Himalopsyche sp.1;Rhyacophila:(30)Rhyacophila quadrifida Sun&L Yang,1995;(31)Rhyacophila triangularis Schmid,1970;(32)Rhyacophila sp.1. |
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