A male tarantula collected under a stone near Lake Bafa on 10 April 1992 spent the next 34 years in a museum drawer in Frankfurt. It has just been identified as new to Türkiye's animal life, the first of its kind ever recorded in the country.
The spider is Ischnocolus valentinus, and this is the first time the genus Ischnocolus has been found within Türkiye's borders. The record was published this month in the peer-reviewed journal Invertebrate Zoology by Donard Geci, Kadir Boğaç Kunt, Ersen Aydın Yağmur of Manisa Celal Bayar University, and Danniella Sherwood, working from the specimen held at the Senckenberg Research Institute and Natural History Museum.
The collection point is a quiet one: the eastern shore of Lake Bafa in Muğla province, at the foot of the ancient city of Herakleia. That location is the interesting part, because Yağmur does not think the spider belongs there.
In years of fieldwork across Türkiye, he says, no other population of this genus has ever turned up. Ischnocolus valentinus is otherwise an animal of the western Mediterranean and the North African coast, from Spain and Sicily across to the Maghreb. A lone male at a single spot, with no population anywhere else in the country, reads to Yağmur as an animal that was brought in rather than one that grew up there.
Here is where the spider meets the archaeology. Lake Bafa was not always a lake. In antiquity it was the Latmian Gulf, an arm of the Aegean, and Herakleia stood on it as a working harbor. Over centuries the Meander river's silt sealed the gulf off from the sea and left the freshwater lake that sits there now. So around 500 BCE, a spider could have reached Herakleia the way cargo did: by ship.
That is Yağmur's hypothesis, and he is careful to call it that. A single specimen from 1992 is thin evidence for a 2,500-year-old crossing, and the spider could have come by some other route, or be the last trace of a population no one has found. What is settled is the smaller, stranger fact: a tarantula that sat unremarked in a German collection for a generation has quietly added a new name to the list of Türkiye's wildlife.