Stenorhamphus mixtus ( Putshkov & Popov, 1995 ) Smith & Hwang & Weirauch, 2019

Smith, Samantha, Hwang, Wei Song & Weirauch, Christiane, 2019, Synonymy of Mangabea and Stenorhamphus, with the description of two new species (Hemiptera: Reduviidae: Emesinae: Collartidini), Raffles Bulletin Of Zoology 67, pp. 135-149 : 143

Stenorhamphus mixtus ( Putshkov & Popov, 1995) , new combination

Collarhamphus mixtus Putshkov & Popov, 1995 .

Holotype. Male, from Baltic amber, Coll. Geological- Paleontological Institute and Museum, University of Hamburg; Typ.Kat.Nr.3602. Locality used in Fig. 8 based on approximation of Baltic amber collection sites .

Discussion. Stenorhamphus mixtus was described as a fossil in the genus Collarhamphus due to apparently sharing similarities with all three extant Collartidini genera. As the three genera of Collartidini share many similarities, distinguishing between them can be extremely difficult. However, our morphological analyses placed Collarhamphus within the Mangabea + Stenorhamphus clade. Though not within Emesinae , previously described coleopteran Baltic amber fossils have been placed within extant genera ( Alekseev, 2013). We feel confident in synonymising Collarhamphus with Stenorhamphus . This further emphasises the age of this group to be between 36 to 54 million years old ( Wolfe et al., 2009) and that little morphological change appears to have occurred during this period.

Figures

Fig. 8. Map showing expanded range of Stenorhamphus Localities based on holotype collection. S. mixtus locality based on approximation of Baltic amber collection sites.