Ctenus

Jäger, Peter & Minn, Myin Zu, 2015, New species in the family Ctenidae Keyserling, 1877 from high altitude habitats in Myanmar, with the first case of penetration of the female’s cuticle by a male in the RTA-clade (Arachnida: Araneae: Ctenidae), Zootaxa 3994 (2), pp. 235-252 : 245-247

Ctenus spec.

Figs 44–50

Material examined. MYANMAR: Chin State: 1 male, 1 female, above Kampetlet, above Oasis Mountain Resort, 21°11'54.14''N, 94°02'16.78''E, 1752 m, disturbed secondary forest, at night, by hand, P. Jäger leg. 18 May 2014 ( SMF).

Note. This male exhibited a different distal tip of RTA than the typical C. natmataung spec. nov. ( Figs 45–46 ). A malformation seems to be unlikely since both palps show the same shape of the RTA tip. Other palpal structures ( Figs 44–47 ) or copulatory organs of the female ( Figs 48–50 ) collected with the male as well as colouration of both sexes ( Figs 22–25 ) are absolutely congruent with those character states in C. natmataung spec. nov. So far, it cannot be decided whether these specimens (especially the male) are conspecific with C. natmataung spec. nov. and the RTA tip represents a strong intraspecific variation or whether it belongs to a different species. Body length: male 9.9, female 15.3.

Figures

FIGURES 44 – 47 Ctenus spec., male from Mt Victoria, Myanmar, palp (44 prolateral; 45 ventral; 46 retrolateral; 47 embolus tip, ventral).

FIGURES 48 – 50 Ctenus spec., female from Mt Victoria, Myanmar, copulatory organ (48 epigyne, ventral; 49 epigyne, posterior; 50 vulva, dorsal). I + II—two chambers of spermathecae, chamber II functionally between chamber I and fertilisation duct.

FIGURES 18 – 27. Ctenus spp. from Mt Victoria, Myanmar, habitus (18, 20, 22, 24, 26 – 27 dorsal; 19, 21, 23, 25 ventral). 18 – 21, 26 – 27 Ctenus natmataung spec. nov., holotype male (18 – 19) and female paratype (20 – 21) 22 – 25 Ctenus sp. from Mt Victoria, Myanmar (22 – 23, male; 24 – 25 female).