. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. 388 Bulletin Museum of Comparative Zoology, Vol. 147, No. 8. Alpaida calix Map 7. Distribution of Alpaida calix (Walckenaer). ( Plate 6). It is unique, a similar but upside- down version of the web illustrated by Robinson (1972) of an unknown New Guinea Metinae. Distribution. From southern Georgia to Texas, south to northern Argentina (Map 6). Alpaida 0. P.-Cambridge Alpaida O. P.-Cambridge, 1889, Biologia Centrali- Americana, Araneidea, 1: 52. Type species by monotypy A. conica. The name is feminine. Parepeira Mello-
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. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. 388 Bulletin Museum of Comparative Zoology, Vol. 147, No. 8. Alpaida calix Map 7. Distribution of Alpaida calix (Walckenaer). ( Plate 6). It is unique, a similar but upside- down version of the web illustrated by Robinson (1972) of an unknown New Guinea Metinae. Distribution. From southern Georgia to Texas, south to northern Argentina (Map 6). Alpaida 0. P.-Cambridge Alpaida O. P.-Cambridge, 1889, Biologia Centrali- Americana, Araneidea, 1: 52. Type species by monotypy A. conica. The name is feminine. Parepeira Mello-Leitao, 1933, Arch. Escuela Sup. Agric. Med. Veter., 10(1): 3-63 (not seen). Type species Epeira albostriata Keyserling. NEW SYNONYMY. Subaraneus di Caporiacco, 1945, Proc. Zool. Soc. London, 118- 661. Type species by original designation Epeira veniliae Keyserling. NEW SYNONYMY. Lariniacantha Archer, 1951, Amer. Mus. Novitates, no. 1187: 15. Type species Epeira grayii Black- wall, 1863 by original designation. NEW SYNONYMY. Subedricus di Caporiacco, 1954, Comment. Ponti- ficia Acad. Scient., 16: 84. Type species Epeira nigropostulatus O. P.-Cambridge by original designation. NEW SYNONYMY. Note. This genus includes the majority of South and Central American species de- scribed in Epeira, Aranea, Araneus and Silica. Mello-Leitao placed species belong- ing to this genus in Wixia in the 1940s, Archer in Lariniacantha. Diagnosis. Alpaida differs from Araneus and Singa by the genitalia. The epigynum is a broad lobe without a scape (Figs. 140, 141). Unlike the palpi of Singa and Hijpso- singa, the palpus in Alpaida has the tegulum lateral, the sclerites facing mesally (Fig. 143). There is a terminal apophysis (a in Fig. 144), generally with two, usually heavily selerotized lobes, one of which may be the subterminal apophysis. The median apophysis (m) is bulky, variously shaped, and also heavily selerotized. Alpaida lacks the paramedian apophysis seen in Erio- phora, Verrucosa and Wix