Grismadox Pett, Rubio & Perger, 2022
publication ID |
https://doi.org/10.11646/zootaxa.5706.2.1 |
publication LSID |
lsid:zoobank.org:pub:111119C4-6537-47BC-936C-F4BDCEE8AC8E |
persistent identifier |
https://treatment.plazi.org/id/03FA816D-FFB4-436A-FF50-FED2425991DE |
treatment provided by |
Plazi |
scientific name |
Grismadox Pett, Rubio & Perger, 2022 |
status |
|
Grismadox Pett, Rubio & Perger, 2022 View in CoL
Diagnosis. Grismadox resembles Myrmecotypus and Apochinomma by having a recurved PER and narrow carapace ( Fig. 1 D–F View FIGURE 1 ), but it differs from both by the spiniform second pair of anterior abdominal setae ( AS II) ( vs. thin and unmodified in Myrmecotypus and Apochinomma ) ( Figs 2A–B View FIGURE 2 , 13E View FIGURE 13 ). Grismadox resembles Mazax by having AS II spiniform but differs by the recurved PER ( vs. slightly recurved or straight in Mazax ), surface of the AS II serrated ( vs. smooth in Mazax ), and the pedicel collar shorter than the length of the epigastric scutum ( vs. longer in Mazax ) ( Figs 2B–D View FIGURE 2 , 8A View FIGURE 8 ; Silva-Junior et al. 2024: figs 4E, 5A, B). Additionally, Grismadox differs from these three genera by the presence of a branched retrolateral tibial apophysis with ventral and dorsal lobes (vRTA and dRTA), and CD fused anteriorly to the secondary spermatheca (ST II) ( vs. RTA absent or unbranched and CD fused laterally to ST II in Mazax, Myrmecotypu s and Apochinomma ) ( Fig. 3C–D View FIGURE 3 ).
Supplementary description. Small to medium-sized spiders, adults between 3.17 mm and 7.14 mm in total length. Carapace orange ( G. baueri , G. mboitui , and G. monai comb. nov.) or black (other species), feathery hairs and long hairs present over entire body, very slight dorsal depression distinguishing cephalic and thoracic region, truncated posteriorly in G. elsneri , G. mazaxoides , G. mboitui , and G. karugua ( Figs 11B, E View FIGURE 11 , 12B View FIGURE 12 , 13B, E View FIGURE 13 ), slightly convex in other species ( Figs 8B View FIGURE 8 , 9B, E View FIGURE 9 , 10B View FIGURE 10 ). Cephalic and thoracic regions having roughly same length. Posterior lateral margin of carapace with two slight depressions (absent in G. baueri and G. monai comb. nov.). Fovea always present. PER wider than AER, recurved and eyes equidistant; eyes subequal, AME larger than others, AER straight to slightly recurved ( Fig. 1E–F View FIGURE 1 ). Cheliceral promargin with two, three or four teeth; retromargin with two teeth, with several long erect setae on anterior surface of paturon; endites rectangular, longer than wide, with densely scopulate mesal margins; labium slightly trapezoid, wider than long. Sternum shield-shaped, precoxal triangles present, intercoxal sclerites present between coxae II and III, III and IV but absent in I and II, not fused to the sternum. Leg formula 4123; legs with short or medium-sized spines, tibia I ventral spination 2-2, 3-2 or 3-3. Abdomen elongate, usually with strong median constriction (slightly constricted in G. elsneri , G. baueri , G. monai comb. nov., and G. nazgul sp. nov.), dorsal scutum covering more than half of abdomen in males and up to half of abdomen in females, pedicel collar short, first anterior abdominal setae ( AS I) thin, second anterior abdominal setae ( AS II) spiniform ( Fig. 2A, B View FIGURE 2 ), dorsal and epigastric scutum fused anterolaterally, collar of squamose setae with brachia present in G. mazaxoides , G. mboitui , and G. karugua ( Figs 11A View FIGURE 11 , 12A, B View FIGURE 12 , 13A, B View FIGURE 13 ). Male palp with retrolateral tibial apophysis divided in two lobes (vRTA and dRTA; Fig. 5 View FIGURE 5 ) (vRTA absent in G. rubioi ), cymbium without spines, tegulum with globular base and narrow distal neck, without projections, sperm duct with only three folds, embolus with several keels, except in G. armatus comb. nov. ( Fig. 4 View FIGURE 4 ). Epigynum plate usually with groove above the copulatory opening (CO), CO situated anterior to ST, CD inserted anterior to ST II, which are larger than ST I ( Fig. 3 View FIGURE 3 ).
Composition. G. annatar sp. nov., G. armatus comb. nov., G. baueri , G. elsneri , G. karugua , G. mazaxoides , G. mboitui , G. monai comb. nov., G. nazgul sp. nov., and G. rubioi .
Distribution. South America.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.