Crathis ansata (Distant)

Weiler, L., Barão, K. R., Cassis, G. & Grazia, J., 2016, Morphology of the external scent efferent system of Neotropical shield bugs (Hemiptera: Scutelleridae: Pachycorinae), Zoomorphology 136, pp. 1-16 : 7

Crathis ansata (Distant)

Ostiole closer to metacoxal cavity than to lateral margin of metapleuron ( Fig. 9a ); ostiole guttiform, oriented ventrolaterally, visible in lateral view; lateral margin of ostiolar plate elevated; peritreme ruga-shaped, directed laterally reaching anterolateral margin of ostiolar plate ( Fig. 9b ), median furrow developed basally; peritremal surface with scattered, spike-like microsculptures and minute sensilla ( Fig. 9c ). Evaporatorium well developed on meso- and metapleuron; on metapleuron, evaporatorium completely covering ostiolar plate and reaching between coxal cavities, outer margin of metapleural evaporatorium straight; on mesopleuron, well developed on mesepimeron; evaporatorium with several minute sensilla ( Fig. 9d ); mushroom bodies irregular, alveoli with several trabeculae. Metathoracic spiracle wide; processes of the filter system of regular diameter, processes spiny ( Fig. 9e ).

Figures

Fig. 9 External scent efferent system of Crathis ansata. a Meso- and metapleuron. b Peritreme. c Peritremal surface. d Detail of evaporatorium. e Spiracular filter system. Bars a 500 µm; b 200 µm; c–e 10 µm