Corinnomma javanum Simon, 1905

Sankaran, Pradeep M., 2023, An update on the ant-mimicking genus Corinnomma Karsch, 1880 (Araneae, Corinnidae, Castianeirinae), Zootaxa 5254 (4), pp. 534-544 : 535

Corinnomma javanum Simon, 1905

Figs 1 , 5A

Corinnomma severum javanum Simon, 1905: 68 (♁).

Corinnomma javanum Deeleman-Reinhold, 1993: 181 , figs 24–25, 28 (♁ ♀), 2001: 321, figs 477–479 (♁ ♀); Raven, 2015: 33, fig. 13a–g (♁).

Type material. Syntype ♁ from INDONESIA: Java (07°19′S, 109°54′E; 466 m a.s.l.), 1904, leg. K. Kraepelin, repository ZMH (no register number), examined based on photographs .

Diagnosis. Males of C. javanum can be easily distinguished from the males of all the known congeners by a very short embolus (vs. comparatively long in other males) (cf. Fig. 1C–D with Deeleman-Reinhold 1993: figs 22, 27; Sankaran 2021: fig. 8B; herein Figs 2D , 3C , 4D ). Females are closely related to the females of C. comulatum , as both share mediolaterally placed copulatory openings and wrinkled spermathecae, but can be separated from the latter species by copulatory openings with longitudinally oriented comma-shaped rims (vs. transversely oriented in C. comulatum ) and anterior spermathecae II without anterolateral extension (vs. present in C. comulatum ) (cf. Deeleman-Reinhold 1993: fig. 28 with Sankaran 2021: fig. 6C).

Supplementary description. Male (syntype, Fig. 1A–B ) in alcohol. AER moderately recurved, PER slightly procurved ( Fig. 1B ). Opisthosoma pear-shaped, with almost complete dorsal scutum ( Fig. 1A ). Pedipalp ( Figs 1C–D , 5A ): cymbium retrobasally with a paracymbial spine ( Fig. 1C ). Tegulum pear-shaped, with indistinct apical depression, with less coiled sperm duct with longitudinally oriented loop ( Fig. 1C ). Embolus minute, almost straight, directed at 12-o’clock in ventral view ( Figs 1C–D , 5A ).

Remarks. Simon (1905) described this species as a subspecies of C. severum . Deeleman-Reinhold (1993) elevated it to full species status.

Distribution. Indonesia (Borneo, Java), Singapore, Thailand ( Simon 1905; Deeleman-Reinhold 2001; Raven 2015).

Figures

FIGURE 1. Corinnomma javanum Simon, 1905, syntype male. A habitus, dorsal; B eye group, dorsal; C–D left pedipalp: C ventral, D retrolateral; E labels from type bottle. Scale bars: A, 1 mm; B, 0.1 mm; C–D, 0.5 mm.© ZMH, Germany.

FIGURE 2. Corinnomma moerens Thorell, 1890, holotype male. A habitus, dorsal; B eye group, dorsal; C–F left pedipalp: C prolateral, D ventral, E retrolateral, F dorsal; G labels from type bottle. Arrows indicate depression left after the loss of paracymbial spine (1) and spine-like embolar apophysis of embolus (2). All figures are not to scale. © MSNG, Genova, Italy.

FIGURE 3. Corinnomma plumosum (Thorell, 1881), holotype male. A habitus, dorsal; B eye group, dorsal; C–D left pedipalp: C ventral, D retrolateral; E labels from type bottle. All figures are not to scale. © MSNG, Genova, Italy.

FIGURE 4. Corinnomma severum (Thorell, 1877), holotype male.A habitus, dorsal; B eye group, dorsal; C–E left pedipalp: C prolateral, D ventral, E retrolateral; F labels from type bottle. All figures are not to scale. © MSNG, Genova, Italy.

FIGURE 5. Male emboli of Corinnomma spp., ventral. A C. javanum Simon, 1905 (syntype); B C. moerens Thorell, 1890 (holotype); C C. plumosum (Thorell, 1881) (holotype); D C. severum (Thorell, 1877) (holotype); E C. simplex Zhang, Jin & Zhang, 2022. All figures are not to scale. © MSNG, Genova, Italy (B–D), ZMH, Germany, (A), ADSH, India (E).