The thorax is also lined with many spiracles on both the mesothorax and metathorax, except for a few aquatic species, which instead have a form of gills.
32.
The thorax, which develops from segments 2, 3 and 4 of the larva, consists of three invisibly divided segments, namely prothorax, metathorax and mesothorax.
33.
Though a fracture does cross the specimen the bee is not harmed, with the fracture running along the bee from the head down the body to the mesothorax.
34.
The mesothorax and metathorax are fused into a rigid, box-like structure with internal bracing, and provides a robust attachment for the powerful wing muscles inside it.
35.
Its mandibles, ( most of ) clypeus, prothorax, mesothorax, posterolateral areas are all light red, while its abdomen and much of its head is black.
36.
In turn, the notum of the prothorax is called the pronotum, the notum for the mesothorax is called the mesonotum and the notum for the metathorax is called the metanotum.
37.
The mesothorax and metathorax have a pale grey medial band that continues onto the abdomen as a pair of thin lines, enclosing a darker olive-green or brown median line.
38.
When the thorax is pinched, the insect squirts a slimy yellow fluid from two slits on the dorsal surface of the mesothorax, with a range of three to four inches.
39.
The mesothorax has evolved to have more powerful muscles to propel the moth or butterfly through the air, with the wing of this segment ( forewing ) having a stronger vein structure.
40.
The "'split-level hogfish "', " Bodianus mesothorax ", is a species of wrasse native to the western Pacific Ocean and the eastern Indian Ocean.
