Allocladius nanseni (Ferrington Jr & Saether, 2011)

Ferrington Jr, Leonard C. & Saether, Ole A., 2011, A revision of the genera Pseudosmittia Edwards, 1932, Allocladius Kieffer, 1913, and Hydrosmittia gen. n. (Diptera: Chironomidae, Orthocladiinae) 2849, Zootaxa 2849 (1), pp. 1-314 : 63

nanseni group

Pars ventralis absent, no false vein, superior volsella bulge-like, inferior volsella with accessory lobe. Tergite IX of females divided, with caudal cavity or notch except in A. soemmei . Frontal apotome of pupa without warts, spinules or tubercles; tergal conjunctives II/III at most with 22 spinules; tergal conjunctives VII/VIII and sternal conjunctives III/IV with spinules; male genital sac with apical papilla. Larval premandible with brush, mandible with 4 inner teeth., mentum with 5 pair of teeth, posterior parapods with 7-12 claws.