Calolydella is a genus of parasitoid flies in the family Tachinidae. This genus has been shown to primarily parasitize multiple species of caterpillars across a wide variety of families (Lepidoptera: Crambidae; Erebidae; Geometridae; Hesperiidae; Lycaenidae; Nymphalidae; Pieridae; Riodinidae; and Sphingidae).

Species: 

• Calolydella adelinamoralesae Fleming & Wood, 2018
• Calolydella alexanderjamesi Fleming & Wood, 2018
• Calolydella andinensis (Townsend, 1927)
• Calolydella argentea Fleming & Wood, 2018
• Calolydella aureofacies Fleming & Wood, 2018
• Calolydella bicolor Fleming & Wood, 2018
• Calolydella bifissus Fleming & Wood, 2018
• Calolydella blandita (Wulp, 1890)
• Calolydella cingulata (Schiner, 1868)
• Calolydella concinna (Wulp, 1890)
• Calolydella crocata Fleming & Wood, 2018
• Calolydella cylindriventris (Wulp, 1890)
• Calolydella destituta Fleming & Wood, 2018
• Calolydella discalis Fleming & Wood, 2018
• Calolydella erasmocoronadoi Fleming & Wood, 2018
• Calolydella felipechavarriai Fleming & Wood, 2018
• Calolydella fredriksjobergi Fleming & Wood, 2018
• Calolydella geminata Townsend, 1927
• Calolydella gentica (Walker, 1860)
• Calolydella inflatipalpis Fleming & Wood, 2018
• Calolydella interrupta Fleming & Wood, 2018
• Calolydella lathami (Curran, 1925)
• Calolydella leucophaea (Wulp, 1890)
• Calolydella nigripalpis Fleming & Wood, 2018
• Calolydella omissa Fleming & Wood, 2018
• Calolydella ordinalis Fleming & Wood, 2018
• Calolydella peruviana (Townsend, 1927)
• Calolydella renemalaisei Fleming & Wood, 2018
• Calolydella rufiventris (Townsend, 1927)
• Calolydella summatis Reinhard, 1975
• Calolydella susanaroibasae Fleming & Wood, 2018
• Calolydella tanyadapkeyae Fleming & Wood, 2018
• Calolydella tenebrosa Fleming & Wood, 2018
• Calolydella timjamesi Fleming & Wood, 2018
• Calolydella triangulifera (Bigot, 1889)
• Calolydella trifasciata (Walker, 1837)
• Calolydella virginiajamesae Fleming & Wood, 2018