belongs to the "Coptosoma-group," defined by the following combination of characters:
ocellus situated near to eye (ratio of distance between eye and
ocellus to interocellar distance less than 0.
Frontal costa expanding between the antennae, slightly converging below medium
ocellus, then expanding again, flat with scattered impressed punctae from fastigium to clypeus and slightly convex between the lateral carina; a large subtriangular spot above the antennae and below lateral ocelli (Fig.
Frontal ridge smooth, nonsulcate, obsolete below median
ocellus.
has a broad frons, the distance of the vertical seta to lateral
ocellus being greater than the distance between the lateral ocelli (Fig.
Pekkarinen (1995) compared measurement data for seven parameters (oculo-malar length, distance between compound eyes on vertex, postocellar width, distance between posterior
ocellus and occipital margin, clypeal width, clypeal length and pronotal width), along with features of the male genitalia (upper inner margin of the paramere and tip of the aedeagus) and likewise concluded that D.
0 times diameter of the lateral
ocellus (Figure 4); 32 antennomeres.
Fine structure of the
ocellus of Sarsia tubulosa (Hydrozoa, Anthomedusae).
Forewing, upper side: ground color gray, with purplish iridescent scales covering most of the wing, except along the outer margin; one small black submarginal
ocellus surrounded by yellowish scales in each space between [R.
Frontal ridge above medial
ocellus with thickened carinae, widely but shallowly sulcate, interrupted just above the medial
ocellus by a transverse ridge; below the
ocellus, frontal ridge increasingly obsolete.
Vertex and gena very sparsely micropunctate, shining; frons, supraclypeal area, clypeus somewhat densely punctate, shining, malar space rugosely sculptured, dull; pubescence whitish, shorter than the diameter of lateral
ocellus.
6 of way to median
ocellus, tapered, strongly concave and with upper end truncate and free from frons (Figures 1, 4); frons with little median prominence; lateral
ocellus separated from eye by slightly less than its own maximum diameter.
01 mm distance between posterior and anterior
ocellus.
