Alpaida machala (Poeta, Maria Rita Muniz & Lise, Arno Antonio 2015)
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BibTeX: @article{Poeta2015Zootaxa4000, RIS/ Endnote: TY - JOUR Wikipedia/ Citizendium: <ref name="Poeta2015Zootaxa4000">{{Citation |
Ordo: Araneae
Familia: Araneidae
Genus: Alpaida
Name
Alpaida machala Levi, 1988 – Wikispecies link – Pensoft Profile
- Alpaida machala Poeta, Maria Rita Muniz, 2015, Zootaxa 4000: 397-398.
Materials Examined
Material examined.ECUADOR, Pichincha: Pedro Vicente (Road from Quito to Puerto Quito), 79 °07’W, 00°05’S, ♂, 09– 12.VII. 1988, W. Maddison (MCZ). Note. Male and female were considered conspecific for having the same color pattern.
Diagnosis
Diagnosis. The male of Alpaida machala is similar to those of A. truncata (Keyserling, 1865) and A. queremal Levi, 1988 (see Levi 1988, figures 569; 577) in having an elongate median apophysis, which contours the tegulum laterally. Males of A. machala differ from those of A. quaremal (see Levi 1988, figure 569) by the developed cylindrical projection in the basis of the median apophysis, by the rectangular-shaped conductor, and by a particularly short embolus that is almost totally hidden by the conductor (Fig. 3). A. machala can be easily distinguished from A. truncata by the median apophysis apex, which narrows abruptly in the latter species (see Levi 1988, figure 577) and also by the lack of a modified tibia II, diagnostic in A. truncata (see Levi 1988, figure 578).
Description
Description.Male (MCZ, Pichincha, Ecuador). Total length 3.70. Carapace length 1.75, width 1.40, height 0.60. Clypeus height 0.08. Sternum width 0.54. Abdomen length 2.15, width 1.25, height 1.30. Leg formula 1,4=2,3. Leg lengths (I/II/III/IV): femur 2.25 / 1.85 / 1.35 / 1.85; patella+tibia 2.45 /2.00/ 1.30 / 1.95; metatarsus 1.50 / 1.25 / 0.90 / 1.35; tarsus 0.70 / 0.60 / 0.50 / 0.55. Total leg 6.90 / 5.70 / 4.05 / 5.70. Eye diameters and interdistances: AME 0.12, ALE 0.10, PME 0.08, PLE 0.12; AME-ALE 0.12, PME-PLE 0.24, AME-AME 0.10, PME-PME 0.10. Median ocular area black, carapace and chelicerae pale yellow (see Levi 1988, figure 562). Sternum dark-brown. Labium and endites dark-brown with white apex. Legs I and II pale yellow, except by the tibiae, metatarsus, and tarsus that are light-orange; legs III and IV totally pale yellow. Abdomen longer than wide; dorsally, partially bordered by white pigment, with a discolored central area with longitudinal paired white marks and a transversal one posteriorly; also there are dusky rounded marks on shoulders, as in the female (see Levi 1988, figure 562). Venter with a dark-brown band from the spinnerets to the epigastric furrow, as the female (see Levi 1988, figure 563). Female: see Levi (1988: 470).
Distribution
Distribution.Ecuador: Pichincha and El Oro (Levi 1988).
Taxon Treatment
- Poeta, Maria Rita Muniz; Lise, Arno Antonio; 2015: On the males of the orb-weaving spiders Alpaida nigrofrenata (Simon, 1895), A. machala Levi, 1988, and A. cisneros Levi, 1988 (Araneae, Araneidae) and a new synonymy, Zootaxa 4000: 397-398. doi
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