Review of the Japanese Microtendipes (Diptera: Chironomidae: Chironominae), with description of a new species

Abstract

The distribution of M. umbrosus extends from Africa to the Russian Far East and East Asia (Japan, China), and Australia and Thailand (with new distributions reported here). Although no African type material is examined here, the morphological features of those populations are consistent with Freeman's concept.

New Color-Patterned Species of Microtendipes Kieffer, 1913 (Diptera: Chironomidae) and a Deep Intraspecific Divergence of Species by DNA Barcodes

“…Microtendipes Kieffer, 1915 (Diptera: Chironomidae) is a cosmopolitan genus of the tribe Chironomini in the subfamily Chironominae, comprising more than 60 described species globally [ 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 ]. The immature stages of Microtendipes can occur in littoral and sublittoral sediments of large bodies of water, with a few species occurring in running water [ 20 ].…”

“…For example, when Towns (1945) discussed the color varieties of the species Microtendipes pedellus (De Geer, 1776), in the key, he primarily paid attention to the colors of the legs, thorax, and abdomen to delimit the varieties [ 21 ]. Additionally, Tang et al (2017) proposed eleven synonymies with Microtendipes umbrosus Freeman, 1955, regarding color varieties as instances of conspecific variation [ 16 ]. However, they also doubted that such a morphologically defined but variable species with such a wide range might show geographically discrete populations or cryptic species, even if molecular data were considered.…”

A New Species of the Genus Microtendipes Kieffer (Diptera, Chironomidae) from Foothills of Eastern Himalaya, India

“…M. caducus Townes (1945) and M. diffinis (Edwards, 1929). The new species showed affinity with M. pedelus (De Geer, 1776), M. zhamensis (Qi and Wang, 2006) and M. parachloris (Tang and Niitsuma, 2017); but the presence of median volsella in M. pedelus (De Geer, 1776), M. zhamensis and M. parachloris ruled out the possible relationship. It also showed resemblance with M. zhejiangensis Qi et al (2012) and M. globosus Qi et al (2014) in the shape of anal point, but strongly differs in superior volsella, inferior volsella and gonostylus.…”

A new species of Polypedilum (Cerobregma) (Diptera, Chironomidae) from Oriental China

“…Adult males of the subgenus Cerobregma Saether & Sundal, 1999 are characterized by having extremely long and strong, split setae along the inner margin of the gonostylus and gonocoxite, with an apicolateral bulb-like extension with deep lateral incision between the bulb and the gonostylus. The subgenus Cerobregma includes 15 valid species recorded in the Afrotropical, Holarctic and Oriental regions (Tokunaga 1940;Saether and Sundal 1999;Kobayashi et al 2003;Zhang and Wang 2005;Zhang et al 2006;Moubayed-Breil 2007;Tang and Niitsuma 2017;Lin et al 2019).…”