Diacamma rugosum hortense Karavaiev, 1925 valid
Diacamma rugosum subsp. hortensis Karavaiev, 1925b: 119 (w.) INDONESIA (Java). Indomalaya.
Primary type information: Type-material: syntype workers (number not stated). Type-locality: Indonesia: Java, Buitenzorg (= Bogor) (H. v. Buttel-Reepen). Type-depository: MHNG.
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