Lamprochernes muscivorus Redikorzev 1949 is recorded for the first time from Iran accompanied by a redescription, illustrations, mensuration and a new habitat record. In addition, new provincial record and illustrations of Lamprochernes nodosus (Schrank 1803) are provided.
The present paper describes one new Clubiona trivialis-group species collected from Baishi Mountain, Hebei Province of China: Clubiona hooda sp. nov. (♀♂). Illustrations and photographs of somatic and genitalic morphology are provided.
We report the occurrence of a gynandromorph of the funnel-web spider Allagelena opulenta collected by a Malaise trap set in a Japanese cedar plantation on Mt. Aikodake, Yakushima Island, Japan. This specimen presents a transverse gynandry, with the anterior half of the body male and the posterior one female. The epigyne is abnormally developed, and the shape of the epigynal opening is deformed compared to that in normal females. This is the first case of gynandromorphy observed in this genus.
On the basis of literature review and material examination of seven arachnological collections, the geographic distributions of ten species of Lyssomanes inhabiting Argentina and neighboring countries are provided, extending the known range of the genus in southern South America. New generic and specific records are presented from Brazil, Uruguay and Argentina.
Prey capture and subsequent behaviors of Calommata signata (Araneae: Atypidae) were observed and video-documented in the laboratory Our observations indicated that the spider captures various soil animals by using only its chelicerae. Furthermore, when closing the entrance of the burrow, the spider made a provisional cover of the entrance by hooking and drawing the inner surface of the burrow before covering the entrance with silk webbing from its spinnerets.
Reproductive phenology of Japanese foliage spider Cheiracanthium lascivum was investigated on grasslands at Fujisawa City in Kanagawa Prefecture in order to reveal the parity of this species. The individuals overwintered in juvenile stage, made molting nests after April and became adulthood by the mid-June. The females laid their eggs in the breeding nests up to the mid-July. Subsequently, the females and the newborn juveniles dispersed from the breeding nests by the end of July. After the dispersal, we did not observe any type of newly made nest. Although the females' death after reproduction was not confirmed in the natural field, the results strongly indicate semelparous reproduction of this species.