Results 141 to 150 of about 1,428 (180)

Gregarines: Their Effects on Damselflies (Odonata: Zygoptera)

Insect Systematics & Evolution, 1971
AbstractAdults of the damselfly Pyrrhosoma nymphula (Sulzer) were to a great extent found to have their midgut infected with a eugregarine Hoplorhynchus oligacanthus (Siebold). Heavy infestation seriously damaged the gut epithelium, and the viability of the host was estimated to be reduced.
openaire   +1 more source

Diagnostic Keys and Notes on the Damselflies (Zygoptera) of Florida

Bulletin of the Florida Museum of Natural History, 1970
This study presents a current species list and identification guide to the 45 species of damselflies (Zygoptera) occurring in Florida, a guide to morphological terms, and a short text improving accuracy of determinations. Illustrated characters of each species and sex accompany the keys.
Johnson, Clifford, Westfall, Minter J ( Minter Jackson )   +1 more
openaire   +1 more source

Chinese damselflies of the genus Coenagrion (Zygoptera: Coenagrionidae)

Zootaxa, 2011
We review and update species of Coenagrion recorded from China, including distributional information. A key to the males is provided including figures of the genital ligula and caudal appendages. A distributional record of Coenagrion armatum is excluded from China.
Yu, Xin, Bu, Wenjun
openaire   +2 more sources

The oldest Calopterygidae in the Eocene Baltic amber (Odonata: Zygoptera)

Zootaxa, 2009
A larva of the damselfly family Calopterygidae is described from Eocene Baltic amber. It is the oldest record of this family partially filling the gap between previous records from the Oligocene and the Mesozoic inferred from molecular analyses for this family.
GÜNTHER FLECK, ALAIN WALLER, JACEK SERAFIN, ANDRÉ NEL   +3 more
openaire   +1 more source

Chinese damselflies of the genus Coenagrion (Zygoptera: Coenagrionidae) (Erratum)

Zootaxa, 2012
Erratum
X. YU, W.-J. BU
openaire   +1 more source

Telosticta fugispinosa sp. nov. from Sabah (Odonata: Zygoptera: Platystictidae) 

Zootaxa, 2016
Telosticta fugispinosa sp. nov. (holotype male, from Borneo, Sabah, West Coast division, Crocker Range National Park, Inobong, Kimamabang waterfall stream system, 21 ix 2012, deposited in RMNH) is described from Kinabalu National Park and Crocker Range National Park in Sabah, Malaysian Borneo. It is distinguished from all other species of Telosticta by
Dow, Rory A., Afendy, Aqilah, Rahman, Homathevi   +2 more
openaire   +3 more sources

Zum Fortpflanzungsmodus fossiler Kleinlibellen (Insecta, Odonata, Zygoptera)

Paläontologische Zeitschrift, 1996
Fossil egg-sets of damselflies (Insecta, Odonata, Zygoptera) are recognized from well known localities such as Randecker Maar, Messel (both in Germany) and in an old record about sediments from the Upper Cretaceous of Bohemia (Czech Republic). Such finds bearing witness to the behaviour of certain fossil insects are extremely rare, especially in ...
Meinolf Hellmund, Winfried Hellmund
openaire   +1 more source

Roosting and related activities in some Australian Zygoptera

Journal of Entomology Series A, General Entomology, 1971
SYNOPSIS Perching, roosting and early morning activities in Austrolestes annulosus and A.leda (Sympecmatidae) and Ischnura heterosticta (Coenagrionidae) are described and discussed in relation to
openaire   +1 more source

?????????????????????????? ???????????????????? ???????????????????? ?????????????????? ?????????????????????? ?????????????? (Odonata, Zygoptera)

2009
Representatives of five Zygoptera families: Bayadera melanopteryx (Euphaeidae), Chalcolestes parvidens (Lestidae), Heteragrion alienum (Megapodagrionidae), Platycnemis pennipes (Platycnemididae), Pala-emnema domina (Platystictidae) were studied. Comparative study was aimed to reveal differences among species of these families.
openaire   +1 more source

Ultrastructural observation on the rectal gills of Zygoptera larva.

Zeitschrift fur mikroskopisch-anatomische Forschung, 1978
The zygoptera larvae have tracheal gills. Both outer and inner epicuticles of damselfly larvae (Zygoptera) are pierced by pores of about 200...250 A thickness. The pores are distributed at a distance of about 500...600 A apart. Their endings are noticed upto the lower portion of exocuticle.
openaire   +1 more source