A synopsis is provided for all scorpion species collected in French Guiana, including thorough diagnoses and additional distributional records for each documented species. Four new species are also described in this paper (one Ananteris from northeastern Guiana, two Auyantepuia from central and northeastern Guiana and one Hadrurochactas from western Guiana), raising the total number of species described from French Guiana to 30. Most of the species are illustrated, geographical distribution maps are presented, and a key to the species is proposed.
A new species of Tityus, subgenus Atreus (Scorpiones: Buthidae) is described from the Province of Pichincha in the Ecuadorian Andes. Ecuadorian scorpion fauna remains one of the less well studied among those of South America. Nevertheless, some comments are addressed about its remarkable diversity and high level of endemic elements.
A new species of scorpion belonging to the genus Androctonus Ehrenberg, 1828 (family Buthidae C. L. Koch, 1837), is described on the basis of one male and one female specimens collected at Sidi Smaïl in the Atlantic Coast of Morocco. With the description of Androctonus maroccanus sp. n., the total number of Androctonus species known to Morocco is raised to seven.
Biological observations on Chaerilus philippinus were based on specimens from the region of Appari, North of Luzon in the Philippines. The total duration of embryonic development was estimated as being between 110 to 136 days, while the moults between successive juvenile instars and adulthood took place at ages that averaged 7, 39, 73, 190 and 327 days. These developmental periods are shorter and different from those previously observed among species of non-buthid scorpions. They prove to be rather similar to those observed in buthid scorpions, however. Morphometric growth values of the different instars are similar or smaller than those of other species of scorpions that have been studied. Aspects of maternal care and social behaviour are also commented.
A new species of the endemic Malagasy genus Pseudouroplectes Lourenço, 1995 (family Buthidae) is described from spiny forests of the southwestern portion of the island. Th e holotype was obtained in the forests of Ifaty, north of Toliara. With the description of this species, the distributional pattern of this genus is confi ned to dry forest formations in the south and southwest. A key is proposed to the known species.
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