EPHEMEROPTERA OF THE WORLD
arb.sig. ABC

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stages

head

thorax

abdomen

 anatomy cells

egg & oogenesis

embryogenesis

larvula

larva

subimago

imago

head
eyes
antennae
mouthparts

thorax
protoptera

axillaria
wings
legs

abdomen

tergalii
genitals
genitals
caudalii

 aliment.syst.

Malpigh.tubes

 trach.system

 nerve system

sensilla

 reprod.system

other anatomy

cells

chromosomes

DNA & genetics

spermatozoid

 

parthenogenesis

viviparity

anomalies

REFERENCES ON CHROMOSOMES 

sources: subjects: taxa:
Katayama 1939 sex chromosomes Ameletus costalis
Wolf 1946* Chromosomenuntersuchungen Ephemera danica
Wolf 1960 Karyologie der Eireifung und Furchung Cloeon dipterum  
Kiauta & Mol 1977* behaviour of the spermatocyte chromosomes Cloeon dipterum
Mol 1978* chromosomes  
Sekine & Tojo 2007* umber of chromosomes, bisexual and parthenogenetic populations Ephoron shigae
Soldán & Putz (2000)2001* karyotypes S,B,H,O,L,Ell,E,Pot,C