Photos of subfossil chironomid remains from SOS: A – Heterotrissocladius grimshawi-type; B, C – Pseudodiamesa nivosa-type; D – Micropsectra radialis-type; E − Zavrelimyia type A; F, G, H – Corynoneura arctica-type; I, J – Procladius (Holotanypus). A – mentum and mandibles; B, G – mentum; C – premandibles and pecten epipharyngis; D, E, F – head capsule, ventral view; H – strong net-like reticulation on head capsule; I – ligula and paraligulae; J – thoracic horn of pupa.