Sphyrocoris obliquus (Germar)

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 : 12

Sphyrocoris obliquus (Germar)

Ostiole closer to metacoxal cavity than to lateral margin of metapleuron ( Fig. 19a ); ostiole elliptic, oriented ventrolaterally, not visible in lateral view; peritreme grooveshaped, smoking-pipe-like, directed laterally and apically ample and curved anteriorly, parallel to surrounding pleuron ( Fig. 19b ), median furrow well developed; peritremal surface smooth with spike-like microsculptures and setae along the median furrow ( Fig. 19c ). Evaporatorium well developed on meso- and metapleuron; on metapleuron, evaporatorium completely covering ostiolar plate and tapered toward coxal cavities; reduced on mesopleuron; evaporatorium punctate and setose ( Fig. 19d ); mushroom bodies irregular, alveoli with few trabeculae. Metathoracic spiracle narrow; metapleural margin of spiracle with several setae; processes of the filter system of irregular diameter, some bifurcate apically, processes spiny ( Fig. 19e ).

Figures

Fig. 19 External scent efferent system of Sphyrocoris obliquus. 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 20 µm