Agalenocosa is a genus of spiders in the family Lycosidae. It was first described in 1944 by Mello-Leitão. , it contains 18 species with a wide distribution.

Species: Agalenocosa comprises the following species:

• Agalenocosa bryantae (Roewer, 1951)
• Agalenocosa chacoensis (Mello-Leitão, 1942)
• Agalenocosa denisi (Caporiacco, 1947)
• Agalenocosa fallax (L. Koch, 1877)
• Agalenocosa gamas Piacentini, 2014
• Agalenocosa gentilis Mello-Leitão, 1944
• Agalenocosa grismadoi Piacentini, 2014
• Agalenocosa helvola (C. L. Koch, 1847)
• Agalenocosa kolbei (Dahl, 1908)
• Agalenocosa luteonigra (Mello-Leitão, 1945)
• Agalenocosa melanotaenia (Mello-Leitão, 1941)
• Agalenocosa pickeli (Mello-Leitão, 1937)
• Agalenocosa pirity Piacentini, 2014
• Agalenocosa punctata Mello-Leitão, 1944
• Agalenocosa subinermis (Simon, 1897)
• Agalenocosa tricuspidata (Tullgren, 1905)
• Agalenocosa velox (Keyserling, 1891)
• Agalenocosa yaucensis (Petrunkevitch, 1929)