Striamea Raven, 1981

Passanha, Victor & Brescovit, Antonio D., 2018, On the Neotropical spider Subfamily Masteriinae (Araneae, Dipluridae), Zootaxa 4463 (1), pp. 1-73: 56

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Striamea Raven, 1981


Striamea Raven, 1981 

Striamea Raven, 1981: 57  . Type species by original designation, Striamea gertschi  .

Diagnosis. Species of Striamea  differ from the other genera of Masteriinae  in having a color pattern on carapace and abdomen ( Fig. 34BView FIGURE 34), elevated ocular tubercle ( Fig. 34AView FIGURE 34), one row of trichobothria on the metatarsi, teeth of inferior tarsal claw emerging from a projected base ( Fig. 35A –BView FIGURE 35) and australotheline crescent absent ( Fig. 35DView FIGURE 35).

Description. Complementary description of Raven (1981): Small sized mygalomorph spiders, total length (3.30–8.98). Carapace with thoracic and abdominal pattern, with stripes and spots ( Fig. 34A –BView FIGURE 34). Ocular tubercle wider than long, projected. Endites without cuspules, with linear serrula on apical border ( Fig. 36AView FIGURE 36). Three tarsal claws ( Fig. 35A –BView FIGURE 35). Trichobothria with corrugated bases ( Fig. 36DView FIGURE 36), one row on tarsi and metatarsi, and two rows on tibiae. Tarsal organ without elevation with low and concentric keels ( Fig. 36BView FIGURE 36). Metatarsus I with apical ventral megaspine ( Fig. 35CView FIGURE 35). Palpal tibia with apical retrolateral spines, short apical ventral depression ( Fig. 37A –CView FIGURE 37). Palpal bulb without paraembolic apophysis. Posterior median spinnerets without australotheline crescent ( Fig. 35DView FIGURE 35). Female genitalia with unilobed spermathecae and small glandular region ( Fig. 37F –GView FIGURE 37).

Note. After analysis of type material of Striamea gertschi  we found an apical megaspine on metatarsus I of the male, differing from the diagnosis proposed by Raven (1981). The leg I, endites and palp of the holotype were used by the author in SEM, we repeat the process for SEM, confirming the megaspine seen on stereomicroscope.

Species included. Striamea gertschi Raven, 1981  , S. magna Raven, 1981  .

Distribution. Only at Sierra Nevada de Santa Marta, Magdalena, Colombia.












Striamea Raven, 1981

Passanha, Victor & Brescovit, Antonio D. 2018


Raven, 1981 : 57