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Hindumanes karnatakaensis is a species of jumping spider which is endemic to India.

Description
H. karnatakaensis females can be distinguished from H. wayanadensis by having two mid-dorsal spines on the chelicerae and an epigyne with a posterior outgrowth overhanging the epigastric furrow. The spermathecae are nearly oblong and touching, unlike the kidney-shaped and widely separated spermathecae in H. wayanadensis. The copulatory ducts in H. karnatakaensis are moderately long with openings in the middle of the epigyne.

Males of H. karnatakaensis are similar to Lyssomanes anchikaya but have a highly elongated cymbium, a tibia with a distal process and retrolateral outgrowth, and a clam-shaped membranous conductor. The median apophysis is long with an apical finger-like projection, and the embolus is slightly elongated.

The male has a yellowish-orange carapace with reddish-brown markings and a greenish-yellow abdomen with black stripes. The female is similar but larger and lacks the distinct pattern on the carapace.

Distribution
Hindumanes karnatakaenis was previously thought to be limited to the southern Western Ghats in Karnataka. However, recent observations from citizen science platforms, such as iNaturalist, suggest a wider distribution, including regions in Tamil Nadu and Goa. While there's one record outside the Western Ghats (Specifically Yercaud, Tamil Nadu) it might be a stray individual. Most sightings occurred at altitudes between 866-956 meters above sea level, though this is based on a small sample size. More observations are needed to better understand the species ecological distribution.