21. The clypeus differs in shape and size, such as species of Lepidoptera with a large clypeus with elongated mouthparts. 22. The clypeus differs in shape and size, such as species of Lepidoptera with a large clypeus with elongated mouthparts. 23. Their heads and gaster are in a blackish brown colour, and mandibles and clypeus are of a yellow colour. 24. The genus is characterised by the clypeus narrowing into a long and pointed tip ( a " snout " ). 25. Queens typically have a darker brown frons, clypeus , and mandible, while workers exhibit a light yellow coloring. 26. Queens have a lighter-colored body and a wider, brown spotted clypeus region compared to that of workers. 27. Instead, each has only one black mark on its clypeus which is usually anchor-shaped or a dagger-shaped. 28. In spiders, the clypeus is generally defined as the area between the anterior edge of the carapace and the anterior eyes. 29. The face of some species is entire; in others it is divided into two sections : the epistoma and the clypeus . 30. The colour of the head and gaster are black, shading into reddish brown on the clypeus and around the frontal carinae.
