Chelyschema trinotata (Walker)

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 : 6

Chelyschema trinotata (Walker)

Ostiole closer to metacoxal cavity than to lateral margin of metapleuron ( Fig. 7a ); ostiole guttiform, oriented ventrolaterally, visible in lateral view; lateral and posterior margins of ostiolar plate elevated; peritreme reduced, directed laterally ( Fig. 7b ), median furrow obsolete; peritremal surface smooth ( Fig. 7c ). Evaporatorium well developed on meso- and metapleuron; on metapleuron, evaporatorium covering most of ostiolarplateandreachingbetweencoxalcavities, outermargin of metapleural evaporatorium convex; on mesopleuron, well developed on mesepimeron; evaporatorium with several minute sensilla ( Fig. 7d ); mushroom bodies irregular, alveoli with several trabeculae. Metathoracicspiracle wide; metapleural margin of spiracle with several setae; processes of the filter system of irregular diameter, processes spiny ( Fig. 7e ).

Figures

Fig. 7 External scent efferent system of Chelyschema trinotata. a Meso- and metapleuron. b Peritreme. c Peritremal surface. d Detail of evaporatorium. e Spiracular filter system. Bars a 500 µm; b 100 µm; c–e 10 µm