Juvenile Honduran curly hair tarantula (Brachypelma albopilosum) determined to be male
May 26, 2013 by allthingsbiological
Male curly hair tarantula (Brachypelma albopilosum, right) nine days after his most recent molt. Note the increase in size of his cephalothorax, which enlarges only during a several hour period immediately after each molt. Click/double click image to enlarge.
The lack of any discernable structures immediately above the vent make clear he is male. Females at this size have easily discernable spermathecae. Image captured May 17, 2013.
Waiting in line to be photographed. Click/double click image to enlarge.