HomeFish encyclopediaRay-finned fishesScorpionfishes and FlatheadsWasp fishesWestern Blackspot Waspfish Western Blackspot Waspfish (Liocranium pleurostigma) Scientific name: Liocranium pleurostigma Weber, 1913 The Western Blackspot Waspfish (Liocranium pleurostigma) is a marine fish of the family Tetrarogidae. Native range: Indo-West Pacific, Australia to the Philippines, including eastern New Guinea on the basis of collected specimens. BiologyA species of waspfish with the following characters: gill rakers 14-17 (mode 15); posterior tip of depressed pelvic-fin spine often reaching the anus; relatively short length of upper-jaw, 16.7-18.9% of SL, mean 17.6%; depth of maxilla relatively low (5.1-7.2% of SL, mean 5.9%); longest anal-fin soft ray relatively long (23.8-30.9% of SL, mean 28.8%); relatively small, broad and horizontally oriented first blotch (mean width 12.5% of SL, mean height 10.0% of SL), lateral line running through upper one-third of blotch; extremely small, like a dot, second blotch, mean width 1.2% of SL, mean height 1.5% of SL, located at base of first dorsal-fin soft ray, not on fin membrane; no third blotch.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameLiocranium pleurostigmaFamilyTetrarogidae (Wasp fishes)OrderScorpaeniformes (Scorpionfishes and Flatheads)ClassActinopterygii (Ray-finned fishes)Maximum length3.4Depth range11–58 m (36–190 ft)EnvironmentMarine; benthopelagic; depth range 11 - 58 mClimateTropicalDistributionIndo-West Pacific: Australia to the Philippines, including eastern New Guinea on the basis of collected specimens.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries:ResilienceHigh, minimum population doubling time less than 15 months (Preliminary K or Fecundity.) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026