What do fleas from dampness look like? - briefly
Fleas thriving in humid conditions are 2–4 mm long, dark brown to reddish, laterally flattened, wingless, and equipped with elongated hind legs for jumping. After a blood meal their abdomen expands and becomes noticeably lighter.
What do fleas from dampness look like? - in detail
Fleas that proliferate in humid conditions possess several distinctive physical traits. Adults measure 2–4 mm in length, slightly larger than dry‑environment species, and exhibit a more robust, rounded abdomen that often appears engorged due to increased fluid retention. The exoskeleton takes on a matte, brown‑to‑dark brown hue; the surface may look slightly glossy because moisture reduces the typical matte texture. Their thorax is broader, supporting six strong legs with elongated tarsi that end in hooked claws adapted for gripping damp fur or fabric. Antennae remain short, but the sensory setae are thicker, aiding detection of moisture gradients.
Key morphological details include:
- Body shape: compact, oval, with a swollen posterior segment.
- Coloration: dark brown to black, occasionally showing a faint reddish tint when engorged with blood.
- Cuticle condition: semi‑translucent in areas where moisture accumulates, giving a subtle sheen.
- Legs: longer than those of fleas from arid habitats, with more pronounced spines for traction on wet surfaces.
- Respiratory openings (spiracles): slightly enlarged, facilitating gas exchange in humid air.
These characteristics enable the insects to navigate and survive in environments where carpets, bedding, or animal coats retain moisture, distinguishing them from their drier‑adapted counterparts.