摘要
描述原哈格鸣螽科化石2新属:线哈格鸣螽属Grammohaglagen.nov.和奇哈格鸣螽属Aethehaglagen.nov.,3新种:条纹线哈格鸣螽Grammohaglastriatasp.nov.,洪氏奇哈格鸣螽Aethehaglahongisp.nov.及可爱赤峰鸣螽Chifengiaamanssp.nov.。所有化石标本均采于辽宁西部晚侏罗世义县组地层,现存于首都师范大学生命科学学院。
In this article, two new genera and three new species were described. All the specimens described were collected from Yixian formation, West Liaoning Province, China, and deposited in Capital Normal University.
Grammohagla gen. nov.
Type species： Grammohagla striata sp. nov.
Diagnosis. Female. Forewing Fc （False Costal） indistinct. Precostal area developed, veinlets radial.Sc straight, extending about 3/4 of the wing length,with more than 10 parallel branches leading to the anterior margin. R forked before reaching the midwing, with 4 terminal branches leading to the anterior margin. Rs with more than 6 branches, width of the basal part of M-Cu field equal to the basal part of Sc-R field. MP ＋ CuAl forked earlier than R. MP ＋ CuAl with 5 terminal branches.
Male unknown.
Discussion. This new genus Fc is strongly degenerated and is distinct from Ashanga Zherikhin,1985, Parahagla Sharov, 1968, Chifengia Hong,1982, Hebeihagla Hong, 1982. The new genus is similar to Habrohagla Ren, 1995. However, it could be distinguished from the latter by the following characters： Rs with 7 branches; width of the basal part of M-Cu field equal to the basal part of Sc-R field; MP ＋ CuAl forked earlier than R, and with 5 terminal branches.
Etymology. Gramm- （ from Greek. gramm-,means line） ＋ hagla （name of genus hagla）,feminine.
Grammohagla striata sp. nov. （Figs. 1-4）
Holotype, a specimen with whole body, forewing and hindwing, female, part and counterpart.registration No. ： CNU-O-LB-2005001-1, CNU-O-LB-2005001-2.
Locality and horizon. Late Jurassic, Yixian Formation, Beipiao City, Liaoning Province.
Description. Forewing length 47 mm, width 15 mm. Hindwing length 36 mm, width 19 mm （as preserved）. The details of wing venation are showing in Figs.3-4.
Etymology. Striata from Latin, means linear.
Aethehagla gen. nov.
Type species： Aethehagla hongi sp. nov.
Diagnosis. Female. The forewing slender, zonally spotted. Fc straight, somewhat short, terminated on the 2nd branch of Sc near the anterior margin. Sc with more than 10 branches. R1 with less than 4 branches. Rs with less than 6 branches. The basal part of M-Cu field narrower than the basal part of Sc-R field. MP ＋ CuA1 and R forked at the same level. MP ＋ CuA1 with 3 terminal branches.
Male unknown.
Discussion. The new genus is similar to Ashanga Zherikhin, 1985. However, the new genus MP＋ CuA1 and R forked at the same level, which is distinct from the later. The new genus is similar to Habrohagla Ren, 1995. Whereas the new genus could be distinguished from the later by Fc terminated on the branch of Sc, and the basal part of M-Cu field narrower than the basal part of Sc-R field.
Etymology. Aethe （ from Greek： aethe-, peculiar） ＋ hagla （name of Genus hagla）, feminine.
Aethehagla hongi sp. nov. （Figs.5-6）
Etymology. Secific name is dedicated to Mr. HONG You-Chong, The eminent Chinese paleoentomologist.
Holotype, a well preserved forewing, female, registration No. ： CNU-O-LB-2005002.
Locality and horizon. Late Jurassic, Yixian Formation, Beipiao City, Liaoning Province. The details of venation are showing in Fig. 6.
Description. Length 38 mm, width 11 mm （as preserved）. The details of venation are showing in Fig. 6.
Chifengia amans sp. nov. （Figs.7-8）
Etymology. Amans from Latin, means cute.
Holotype, A well preserved forewing of female insect, part and counterpart, registration No. ： CNU-O-LB-2005003-1, CNU-O-LB-2005003-2.
Locality and horizon. Late Jurassic, Yixian Formation, Beipiao City, Liaoning Province.
Description. Length 38 mm, width 11 mm （as preserved）. The details of venation are showing in Fig. 8.
Discussion. This new species is similar to Chifengia mosaica Hong, 1982. Whereas the new species could be distinguished from the later by MP ＋ CuA1 forked somewhat later than R, MA forked earlier than R.
出处
《动物分类学报》
CSCD
北大核心
2006年第2期282-288,共7页
Acta Zootaxonomica Sinica
基金
国家自然科学基金(30025006
30370184
30430100)
北京市自然科学基金(5032003)
北京市教育委员会科技发展计划重点项目(编号KZ200410028013)
北京市属市管高校人才强教计划共同资助.
