Occurrence: In Czechia, Gibbaranea ullrichi was found only once. This record of an adult female is dated 23/4/2023 and comes from Váté písky area in southern Moravia. According to the literature, the sand dunes with the gray clubawn grass are the typical habitat for this rare species. Description: The cephalothorax is brown with hairs. The coloration of the abdomen is grey-brown. The humps on the bottom point upwards and slightly backwards from each other. The folium is distinct and mostly brown in color. There is a possibility of confusion with the abundant Gibbaranea bituberculata, which is slightly larger and whose humps point diagonally away from each other. The legs are brown ringed. An adult female can grow to about 7.5 cm, a male 6 mm. Period of occurrence: Adults are seen in early spring, especially in April. Web: Gibbaranea ullrichi He probably builts it among the plants low above the ground. The biology of the species is not fully understood, but it is likely to be similar to Gibbaranea bituberculata. Food: Gibbaranea ullrichi hunts small flying insects.
The last three photos were kindly provided by Simeon Indzhov from Bulgaria.
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