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Psyche 
[Vol. 95 
Fig. 3 and 4. Mindazerius dominicanus n. sp. Fore wing (3) and hind wing (4). 
Scale 1 mm. 
Taxonomic and Phylogenetic Considerations 
The wing venation of the fossil is similar to that of Mindarus 
Koch (Mindaridae) and some species of Lizerius Blanchard, Pao- 
liella Theobald and Israelaphis Essig (Drepanosiphidae). A long, 
pointed pterostigma reaching the apex of the fore wing and a nearly 
straight radial sector leaving the proximal part of the pterostigma 
are regarded as archaic or plesiomorphous characters (Baker 1920, 
Quednau 1974) and were probably present in the common ancestor 
of the families Mindaridae and Drepanosiphidae, whereas the once- 
branched media is a derived or apomorphous character developed 
from a two-branched media in several aphid groups by parallel 
evolution or convergency. 
Other characters show that the fossil is closer related to Lizerius 
than to Mindarus. Some of the similarities to Lizerius are probably 
symplesiomorphies and consequently do not prove relationship, viz. 
the long cauda and the presence of siphunculi and low tubercles on 
head and margins of abdomen. Some others must be regarded as 
synapomorphies, viz. the saltatorial fore legs (thickened fore 
