Thienemanniella Kieffer, 1911

Namayandeh, Armin, Hudson, Patrick L., Bogan, Daniel L. & Hudson, John P., 2024, Chironomidae (Diptera: Insecta) of Alaska, USA, with descriptions of new species and a checklist, Zootaxa 5511 (1), pp. 1-95 : 74

Thienemanniella Kieffer, 1911

Until recently, no species were identified from Alaskan waters, except for Thienemanniella xena ( Roback, 1957) . We added five new faunistic records in this study. We collected Thienemanniella acuticornis (Kieffer, 1912) larvae in Little Sheep Creek in Juneau ( Fig. 11D–F ). We collected adults and pupae of Thienemanniella boltoni Hestenes & Saether, 2000 , in South Fork Chester Creek near Anchorage in mid-July and late August. We collected adults of Thienemanniella chuzeduodecima Sasa, 1984 ( Fig. 11H–I ) near Mendenhall Lake in late August. We collected the larvae of Thienemanniella lobapodema Hestenes & Saether, 2000 from Neck Lake on Prince of Wales Island. We collected the pupae of Thienemanniella similis ( Malloch, 1915) from a first-order stream on Lena Point in Juneau in mid-July. Additionally, we collected larvae of T. xena from a tributary to the South Fork Koktuli River and from the stomach of a Coho salmon collected on Revillagigedo Island. Thienemanniella larvae have been collected from the Indian River Basin in Sitka ( Smith 2006), a Karst ecosystem on Prince of Wales Island ( Carlson 1997), streams in Denali National Park ( Brabets & Ourso 2013), and from Arctic coastal streams (AWQMS 2005). Thienemanniella larvae inhabit mostly lotic habitats (Andersen et al. 2013).

Figures

FIGURE 11. The new Nearctic faunistic records of Alaskan Chironomidae II; Parorthocladius lazovskiensis Makarchenko & Makarchenko, 2015 male (A); Stilocladius kurobekeyakia (Sasa and Okazawa, 1992) male (B–C); Thienemanniella acuticornis (Kieffer, 1912) larva (D–F); Thienemanniella chuzeduodecima Sasa, 1984 male (H–I); Chironomus sp. 5X male (J); Stempellinella depilisa Guo & Wang, 2007 male (K–M). A. hypopygium. B. hypopygium. C. wing. D. abdominal segments. E. antenna. F. mentum. G. posterior parapod subbasal setae. H. antenna. I. hypopygium. J. hypopygium. K. hypopygium. L. anal point. M. wing. Scale bars are 50 µm.