rays of anal fin of females elongated, anal fin shape nearly triangular.
nucleus is located at the midline of the rostral (superior) pole of the complex, with the Edinger Westphal nuclei adjoining it just caudally and laterally.
sulcus moderately deep, ovate; posteromedian sulcus narrow, shallow anteriorly, deep posteriorly; posterolateral sulci shallow, wide, curved; posteromarginal sulcus deep, narrow.
00): (0) robust, L-shaped, with a well-developed anteromedian
rim; (1) thin, Cshaped, with a reduced anteromedian
hudsonius is broad and a deep anteromedian
fold is present.
Mesonotum with polygonally reticulate sculpturing, anteromedian
campaniform sensilla (CPS) present, but no striations close to these (Fig.
10); the carapace has a well developed anteromedian eminence (Fig.
arcadioi the carapace has a well developed anteromedian eminence (Fig.
Two states have been identified for this character: i) straight or with a slight concavity; ii) not straight, with anteromedian eminence whose strength appears to also be useful.
Ocularium with single large anteromedian
complex denticle with small lateral projections and enlarged central projection.