part_of mesopectus HAO:0000557 The sclerite that is U-shaped in cross section, connected anteriorly with the pronotum and the propectus, dorsally with the basalare, the mesonotum, the second axillary sclerite and the subalare, posteriorly with the metapectus and bears the mesodiscrimenal lamella and the mesofurca. mesothorax sclerite