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