Sunday, April 18, 2021

[Arachnida • 2020] Enna gloriae • The Unknown Enna (Araneae: Trechaleidae), New Species and First Record of Wrapped Nuptial Gifts in the Genus

Enna gloriae
Rengifo, Albo & Delgado-Santa, 2020

The spider family Trechaleidae includes 17 genera and 131 species distributed throughout the Neotropical region. Most of them are semiaquatic spiders living adjacent to streams and rivers. Very few species of the family have been studied for their natural history or behavior; however four genera (Paratrechalea Carico, 2005, Trechalea Thorell, 1869, Paradossenus F. O. Pickard-Cambridge, 1903 and Trechaleoides Carico, 2005) are already known to have males that offer wrapped nuptial gifts to females. Here we describe a new species from the genus Enna O. Pickard-Cambridge, 1897, namely Enna gloriae sp. nov. from Quindío, Colombia. We additionally report the presence of males of this species offering nuptial gifts to females during courtship, being the first record of this sexual trait for the genus.

Keywords: Gift-giving, RTA clade, spider taxonomy, trechaleid

Figure 5.—Enna gloriae sp. nov., male with a wrapped nuptial gift in the field.

Family Trechaleidae Simon, 1890 
Genus Enna O. Pickard-Cambridge, 1897 

Enna gloriae sp. nov.

Etymology.— This species is named in honor of the senior author’s mother, Gloria A. Gutiérrez

Laura Rengifo, Maria Jose Albo and Leonardo Delgado-Santa. 2020 "2021". The Unknown Enna (Araneae: Trechaleidae), New Species and First Record of Wrapped Nuptial Gifts in the Genus. The Journal of Arachnology. 48(3); 242-248.  DOI: 10.1636/JoA-S-20-022