An ocellar "pupil" that does not change with light intensity, but with the insect age in Triatoma infestans
Mem. Inst. Oswaldo Cruz
; 95(5): 743-6, Sept.-Oct. 2000. ilus, graf
Article
in En
| LILACS
| ID: lil-267906
Responsible library:
BR1.1
ABSTRACT
The simple eyes (ocelli) of recently emerged adult Triatoma infestans exhibit a narrow elongated "pupil", surrounded by a ring of brown-reddish pigment, the "iris". This pupil does not respond to changes in the illumination, but varies in size after the imaginal ecdysis. This change corresponds, internally, with the growth of the corneal lens and the associated retina up to an age of about 20 days. This has not been previously observed in an insect. The use of this characteristic for recognising young adults of this species is suggested.
Full text:
1
Index:
LILACS
Main subject:
Triatoma
/
Lighting
/
Aging
/
Pupil
/
Insect Vectors
Limits:
Animals
Language:
En
Journal:
Mem. Inst. Oswaldo Cruz
Journal subject:
MEDICINA TROPICAL
/
PARASITOLOGIA
Year:
2000
Type:
Article