THREE NEW SPECIES OF OSM YLIDAE (NEUROPTERA)FROM GUIZHOU

The neuropterous family Osmylidae is new to Guizhou Province, and three species of the genus Thyridosmylus Kruger are described as new to science. The type specimens are kept in the Insect Collection of Beijing Agricultural University.1.Thyridosmylus maolanus Yang, sp. nov. (Figs. 1,2)Holotype , allotype , Guizhou: Libo County (Yaozhai Maolan), (108.01E, 25.13N), 13- V -1990, leg. Yang Chi-kun. Paratype 1 , as holotype, but collected by the Guizhou Forestry Institute.Somewhat allied to T. medoganus Yang (1988) without hyaline patches on the fore-wings, but differs by the genitalia of both sexes.2.Thyridosmylus trifasciatus Yang, sp. nov. (Fig. 3)Holotype , Yaozhai Maolan, 13- V - 1990, leg. Yang Chi-kun.This new species was collected together with the above species T. maolanus Yang, but appears to be much smaller, fore-wing with three brown bands and a distinct black stripe at the tip of apex. The male genitalia is also different.3.Thyridosmylus qianus Yang,sp. nov. (Fig. 4)Holotype , Guizhou: Guiyang City (Mt. Qianlingshan) (106.7E, 26.6N), 3- V -1987, leg. Xie Xianglin.A pale species, allied to the new species T. trifasciatus Yang, but with only few brownish markings on the fore-wings. The genitalia of males can be compared in the text-figures.