Hahnia michaelseni Simon, 1902

Duperre, Nadine & Harms, Danilo, 2018, Raising the Dead: Rediscovery and redescription of some lost spider types (Araneae) described by Eugene Simon, Evolutionary Systematics 2 (1), pp. 1-20 : 5

Hahnia michaelseni Simon, 1902 Fig. 8 A–D

Hahnia michaelseni Simon, 1902: 39 ( Hahnia Michaelseni n. sp. description female).

Hahnia michaelseni Vellard, 1958: 136, f. 18-25 (female, description male, doubtful identification).

Hahnia michaelseni Lehtinen, 1967: 455, f. 376 (female).

Hahnia michaelseni Schiapelli & Gerschman, 1974: 89, f. 34-35 (female, doubtful identification).

Type locality.

Coll. Mich. 187. Süd-Feuerland, Küstenstrich-Eben westlich von Kap San Pio; 27.XII.92.

Dimensions.

♀. long. 2 mm.

Determination label.

Hahnia Michaelseni n. sp., Nr. 61.

Locality label.

187. Feuerld.S.K. wstl.v. Kp. S. Pio. Coll. Michaelseni . 27.XII.92.

Remarks.

In 1958, Vellard described a female and a male based on specimens from Rusfin, that he believed was the species Hahnia michaelseni but he mentions (p.137) that he was not able to see the type and that there were some significant differences: "les différences de formule oculaires sont peut-être plus significatives. N’ayant pu comparer nos examplaires au type de Hambourg …. Il est bien difficile d’apprécier la valeur de ces différences”. Lethinen (1967: fig. 376) also illustrated a female but did not mention where the specimen came from. Finally, in 1974 Schiapelli and Gerschman redescribed the species based on a single female from Puerto San Carlos. Multiple authors (Vellard 1949, Lethinen 1967, Schiapelli and Gerschman 1974) have redrawn this species but nobody seems to have re-examined the type and the only illustration that matches with the specimens held at the ZMH is the illustration presented by Lethinen (1967). There is a possibility that the specimens examined by Vellard and Schiapelli and Gerschman (1974) are of another species. The specimen found at the ZMH matches the description in locality data and size. It is designated here as the lectotype.

Type material.

Lectotype ♀ designated here (ZMH-A0000763).

Description.

Female (lectotype). Total length: 2.26; cephalothorax length: 1.04; cephalothorax width: 0.78. COLORATION: (from original description, translated from Latin) "cephalothorax smooth, dark olive-brown, thoracic part with thin, barely distinct black border. Abdomen oval, dark gray, decorated anteriorly with longitudinal line, posteriorly with four transversal lines, slightly curved". CEPHALOTHORAX: Pear-shaped, fovea longitudinal (Fig. 8A); pars cephalica not elevated, pars thoracia slooping gradually. Cheliceral teeth not observed. Sternum narrowly truncated (Fig. 8B). EYES: AME smallest (Fig. 8C). ABDOMEN: Oval. Spinnerets in straight row (Fig. 8B). LEGS: Spines present. GENITALIA: Epigynum with central, longitudinal opening (Fig. 8D).

Male. Unknown.

Distribution.

Kap San Pio.

Current systematic position.

Hahniidae , Hahnia michaelseni Simon, 1902.