Descriptions of two interesting chironomid pupae collected in Yunnan Province, China (Chironomidae: Chironominae)

Hongqu Tang,Jinxing Wei

doi:10.5324/cjcr.v0i32.2996

Abstract

Descriptions of two Chironomini pupal types collected in Yunnan Province are given. Among known genera, both types closely resemble that of the North American Hyporhygma Reiss, 1982, but the spine and spinule pattern of the dorsal abdomen does not fit within the current taxonomic boundaries, and represent an endemic component in the Oriental region. A new genus description is expected when associated adults are available.

Highlights

Abdomen (Fig. 1d): T II–VI with extensive spinulation; T VII–VIII with anterolateral spinulation
Cephalothorax: Cephalic tubercles rounded apically, ca. 120 μm in outer diameter, central spine crown consisting of many spines 10–12 long; frontal seta weak, 20 μm long (Fig. 1a)
T III–VI each with anteromedian spine patch laterally accompanied by sparse spines

Summary

Introduction

Abdomen (Fig. 1d): T II–VI with extensive spinulation; T VII–VIII with anterolateral spinulation. 120 μm in outer diameter, central spine crown consisting of many spines 10–12 long; frontal seta weak, 20 μm long (Fig. 1a). Tracheal bundle simple; basal ring elliptical, longest diameter about twice as long as broad. T II with anteromedian and posteromedian transverse bands of strong spines, posterior band narrowly interrupted by posterior muscle marks.

Results

Conclusion