Myrmarachne exasperans (Peckham & Peckham, 1892)

Hurni-Cranston, Tiziano & Hill, David E., 2019, Notes on the jumping spider Myrmarachne exasperans (Araneae: Salticidae: Astioida: Myrmarachnini) in Bali, a possible mimic of parasitoid wasps (Hymenoptera: Ichneumonidae: Cryptini: Goryphus), Peckhamia 176 (2), pp. 1-28 : 26

The exasperans group in Sunda

Spiders that we group into the exasperans (or Emertonius ) sub-clade of Myrmarachne are listed in Table 1. With the exception of koomeni (for which no data is available), these species construct nests covered with debris under leaves ( Figure 29 ; Yamasaki, pers. comm.). Two projections of the RTA distinguish M. exasperans from other members of the group ( Figure 6 ; Yamasaki 2016).

* Emertonius exasperans Peckham & Peckham 1892 Java east to Bali

Emertonius koomeni Prószyński 2018 Sabah, Borneo (one ♀ only), may be synonym of M. exasperans

* Myrmarachne malayana Edmunds & Prószyński 2003 Sunda (Malay Peninsula to Borneo)

* Myrmarachne shelfordi Peckham & Peckham 1907 Borneo

* Myrmarachne thaii Żabka 1985 Vietnam

* Associated with this clade by Yamasaki (2016).

Figures

Figure 6. Pedipalps of adult male Myrmarachne exasperans. 1-5, Ventral to ventrolateral views of left pedipalp. 6-7, Detail of (3). Note the two (proximal and distal) processes of the retrolateral tibial apophysis (RTA) at lower right. 5, 8, Tips of the distal setae of the pedipalp are aligned in a plane (arrows). 9, Extended right pedipalp. 10, Flexed left pedipalp.

Figure 29. Adult male Myrmarachne malayana in nest, Danum Valley, Borneo (20 JUL 2017). 1, Two nests on the underside of a large leaf. 2, Detail of male emerging from one of these nests. Note the presence of cottony silk tufts and the covering of debris in the construction of each nest. Photographs © Nicky Bay, used with permission.