Microscopic identification
Less spiny centipede powder characteristics: yellow-green or gray-yellow.
1. The body wall (chitin) fragments are yellow-brown, yellow-green, brown or reddish-brown, and the chloral hydrate solution appears pale yellow or nearly colorless after permeabilization. The surface of the outer skin is polygonal grid-like texture, 5-14 μm in diameter, neatly arranged, with small round holes scattered underneath, some (in the abdomen) small round holes with micro-arched edges, single scattered or 2-4 integrated groups, different sizes, irregular arrangement; The cross-sectional view is brown, shiny, and some are faintly visible in longitudinal textures. The inner epidermis is colorless and has transverse stripes; The inner and outer skins have many fine pores of different lengths and lengths.
2. The striated muscle fibers are light brown or colorless, more broken, the side view is thin flakes, the chiaroscuro texture is faintly visible, some are more obvious, the texture is after-shaped, curved, water ripple-shaped or slightly straight, the dark band is narrow, and there are dense short longitudinal stripes; Cross-sectional views are grouped or scattered, polygonal, flattened, and striped, and the surface is relatively flat.
3. The fragments of the tracheal wall have brown or dark brown spiral filaments, the spiral filaments are 1-5 μm wide, arranged in a grid or arc circle, and there are nearly colorless or light gray small spots between the filaments. Sometimes it can be thinner, branched, and the spiral filament is smaller. Fat oil drops pale yellow and scattered in.
4. The bristles are colorless and transparent or brownish yellow. The base is 8-17 μm in diameter and has a medullary cavity. A few bristles are 3-4 in clusters, resembling star-like hairs, with a diagonal texture on the surface. A few bristles lie on fragments of the body wall.
Physicochemical identification
The water immersion solution of this product is bright green fluorescence under ultraviolet light (254 nm). (Image source: cfp)