pterostigma उदाहरण वाक्य
उदाहरण वाक्य
- These snakeflies have long prothorax, hyaline wings with a distinct pterostigma and a long ovipositor in the females.
- In most families there is a structure on the leading edge near the tip of the wing called the pterostigma.
- Adults have the fore-and hindwings of equal length, barely petiolate and a long pterostigma that is broader in the hindwing.
- The pterostigma ( a single dark spot in the meshwork of the leading edge near the tip of each wing ) is noticeably elongated.
- Since the base of the pterostigma is not preserved it is not possible to firmly place the species into " Styporaphidia ".
- The functions of the pterostigma are not fully known, but it most probably has an aerodynamic effect and may also have a visual function.
- A pterostigma is present or absent, and the wing membrane is densely covered with microtrichia ( macrotrichia present in " Sylvicola " ).
- P�rez-de la Fuente and coauthors tentatively placed the species into " Styporaphidia " based on the presence of two crossveins in the pterostigma.
- The specimen possesses antennae placed far back on the head, lacks ocelli, a pterostigma without crossvein, all structures found in " Inocellia ".
- The head is longer than it is wide and is longer than the prothorax . " Styporaphidia " possesses the primitive feature of two crossveins in the pterostigma.