Chaetacis necopinata ( Chickering, 1960 )

Magalhães, Ivan L. F. & Santos, Adalberto J., 2011, Two new species and taxonomic notes on the Neotropical spiny orb-weaving spiders Micrathena and Chaetacis (Araneae: Araneidae), with remarks on the development of Micrathena excavata, Zootaxa 2983, pp. 39-56 : 54

Chaetacis necopinata ( Chickering, 1960)

Figure 41

Micrathena necopinata Chickering, 1960: 84 , figs. 71–73. Male from Peru deposited in Hope Entomological Collections, Oxford, not examined.

Chaetacis necopinata, Levi 1985: 612 , figs. 853–861.

Remarks. C. necopinata was first described by Chickering (1960) based on specimens from Peru, although the exact type locality is unknown. All the records provided for this species by Levi (1985) are within this same country. Here, we present the first records of this species for Brazil, in the state of Amazonas ( Fig. 38 ).

New records. BRAZIL. Amazonas: Bom Sucesso, São Paulo de Olivença, Rio Camatiã (3º28’37’’S 69º02’60’’W), F.N.A.A. Rego & C.A. Rheims coll., 12/IX/2003, 1Ƥ (IBSP 81874); São Francisco do Capivara, Tefé, Lago Jatuarana (3º10’41’’S 64º36’53’’W), F.N.A.A. Rego & C.A. Rheims coll., 21/IX/2003, 1Ƥ (IBSP 81871); São Francisco do Laranjal, Coari, Lago Apaurá (3º53’31’’S 63º27’21’’W), F.N.A.A. Rego & C.A. Rheims coll., 24/IX/2003, 1Ƥ (IBSP 81872); São João do Catuá, Tefé, Guariba-Solimões (3º39’50’’S 64º10’12’’W), F.N.A.A. Rego & C.A. Rheims coll., 22/IX/2003, 1Ƥ (IBSP 81873).

Figures

FIGURE 41. Geographic distribution records for Micrathena yanomami new species and Chaetacis bandeirante new species, and new records for M. gaujoni, M. ruschii and C. necopinata.

FIGURES 33 – 38. Chaetacis bandeirante new species. 33 – 37, female paratype (UFMG 4889). 33, female carapace, dorsolateral view; 34, cephalic tubercle, dorsolateral view; 35, abdominal setal bases, ventral view; 36 – 37, epigynum: 36, ventral view; 37, posterior view; 38, female (IBSP 48980), spermathecae, dorsal view. Abbreviations: B = epigynal bulge, CT = cephalic tubercle, Di = dimple, FD = fertilization ducts, Fo = thoracic fovea, LK = epigynum lateral keels, MP = posterior median plate, PB = spermathecae posterior bend, S = spermathecae, SF = stridulating files of the booklung cover. Scale bars: 33, 1 mm; 34, 35, 38, 0.1 mm; 36, 37, 0.2 mm.