New chironomid pupal types from Norway, one with a male pharate adult: Pseudosmittia paraspinispinata n.sp.

Peter H Langton,Vít Syrovátka

doi:10.5324/cjcr.v0i26.1612

Abstract

Three new pupal types from Norway are described, one with an associated male: Pseudosmittia parspinispinata n.sp.

Highlights

Following the International Symposium on Chironomidae in Trondheim, VS collected some pupal exuviae for PHL in lakes and streams around Stugudalen, many hitherto unrepresented in PHL’s reference collection, two pupal types of Orthocladiinae not represented in Langton (1991) or Langton and Visser (2003) and a Micropsectra (Chironominae, Tanytarsini) not keyed in Stur and Ekrem (2006)
Terminology for pupae is as in Langton (1991), except that T is the abbreviation for taeniae instead of S, and terminology for adults as in Sæther 1980. (Note: In conformity with Langton (1991) the apical transverse band of a tergite, though in many cases separated from the tergite by a narrow band of unsclerotized integument, so that it can be tucked under the tergite, is not considered to be conjunctival in origin
A detailed description of this form is unnecessary as it keys to C. (C.) annulator in Langton (1991) and Langton and Visser (2003). Closely does it resemble the exuviae of C.(C.) annulator, that routine inspection could overlook the strong, thumb-shaped projection, often pointed at tip, on the posterior thoracic mound (Figure 1)

Summary

Introduction

Following the International Symposium on Chironomidae in Trondheim, VS collected some pupal exuviae for PHL in lakes and streams around Stugudalen, many hitherto unrepresented in PHL’s reference collection, two pupal types of Orthocladiinae not represented in Langton (1991) or Langton and Visser (2003) and a Micropsectra (Chironominae, Tanytarsini) not keyed in Stur and Ekrem (2006). Closely does it resemble the exuviae of C.(C.) annulator, that routine inspection could overlook the strong, thumb-shaped projection, often pointed at tip, on the posterior thoracic mound (Figure 1).

Results

Conclusion