Dropursides aberratus n. sp.

(Figures 29–34)

Material examined. Holotype female, stream Wasai, SW of Manokwari, West Papua province, New Guinea, Indonesia, 0° 55.563 S 133° 58.380 E, alt. 27 m asl, 12-xi-2011 (RMNH). Paratypes: two females, same data as holotype. (RMNH)

Diagnosis. As for genus. First and second leg modified, ventral margin of PIV with two closely located heavy setae.

Description. Female: Integument soft, without sclerotized plates on dorsal or posteroventral surface. Idiosoma 575 (591–842) long and 437 (454–591) wide. Anchoral process of capitulum and posterior apodemes of Cx-IV long. Cx-I and Cx-II fused on each side, but medially separate, posteriorly extending in long, pointed apodemes. Cxgl-4 lying on Cx-IV near suture line to Cx-III. Genital field with three pairs of acetabula lying on a slightly curved genital plates. Lengths of PI-PV: 26, 66, 64, 68, 26. Ventral margin of PIV with two heavy setae located close to each other. Lengths of I-leg-4–6: 132, 178, 124. I-leg-6 curved, with numerous fine setae on ventral margin. Ventral margin of I-leg-5 with eight heavy setae differing in length. A row of 16 short, hyaline setae parallel to the heavy setae only visible in ventral view. II-leg similar to I-leg, except in the longer anteroventral setae of the fourth segment. Lengths of II-leg-4–6: 128, 170, 126; of IV-leg-4–6: 216, 232, 150. Legs without swimming setae. Excretory pore not sclerotized.

Male: Unknown.

Etymology. Named for the aberrant second legs.

Remarks. Besides the modified second leg the heavy setae of PIV located close to each other is not found in other Dropursa species.