. British journal of entomology and natural history. Natural history; Entomology. BR. J. ENT. NAT. MIST., 7: 1994 ••> ADHESION MARKS ON THE ABDOMEN OF PUPAL CHIRONOMIDAE (DIPTKRA) Peter H. Langton 3 St Felix Road, Ramsey Forty Foot, Huntingdon, Cambridgeshire PE17 I VII. Smooth patches on the abdominal tergites and sternites (Fig. 1) of chironomid pupae have been called 'Fensterflecken' ('window marks') (Thienemann, 1944), and, more recently, 'Muskelmale' ('muscle marks') (Hirvenoja, 1973). Saether (1980), in his glossary of chironomid morphology terminology favours the term muscle marks. H
. British journal of entomology and natural history. Natural history; Entomology. BR. J. ENT. NAT. MIST., 7: 1994 ••> ADHESION MARKS ON THE ABDOMEN OF PUPAL CHIRONOMIDAE (DIPTKRA) Peter H. Langton 3 St Felix Road, Ramsey Forty Foot, Huntingdon, Cambridgeshire PE17 I VII. Smooth patches on the abdominal tergites and sternites (Fig. 1) of chironomid pupae have been called 'Fensterflecken' ('window marks') (Thienemann, 1944), and, more recently, 'Muskelmale' ('muscle marks') (Hirvenoja, 1973). Saether (1980), in his glossary of chironomid morphology terminology favours the term muscle marks. However, Dr M. Hirvenoja informs me that these are inaccurately called 'Muskelmale', and suggests a return to 'Fensterflecken', thereby prompting the following investigation. Material and methods Pupae and fourth instar larvae of Chironomus annularius auctt. were collected from a rain-water butt. Larvae showing different stages of pupal development within them were selected and killed in either 70% isopropanol or Bouin's solution (picric-formol-acetic). They were then cut longitudinally (either vertically or horizontally), or transversely. Some of the preparations were transferred to orcein acetic, until the musculature was stained reddish-purple. The pupae were prepared for examination in the same way. All the specimens were examined under the microscope in 70% isopropanol; the more revealing examples were further dehydrated in 100% isopropanol and slide-mounted in Euparal. Observations The lateral band of dorsoventral muscles in each abdominal segment of the pupa is attached to the cuticle beneath the lateral marks of tergum and sternum, but. Fig. 1. Segment III, dorsal view, of the pupal abdomen of Chironomus annularius. a: anterior adhesion marks; b: row of lateral adhesion marks: c: posterior adhesion marks. Scale line 1 Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appear
Size: 1637px × 1526px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, booksubjectentomology, booksubjectnaturalhistor
