Physodeutera, Lacordaire, 1842

Moravec, Jiří & Trýzna, Miloš, 2021, New or rare Madagascar tiger beetles- 23. Physodeutera (Toxoma) lokobensis sp nov., a new species close to Ph. (T.) conturbata Moravec, Ph. (T.) sulcoprothoracica (W. Horn) and Ph. (T.) dubia (Mařan), with revised type designation of the latter (Coleoptera: Cicindelidae), Zootaxa 5060 (2), pp. 151-182 : 154

Physodeutera

subgenus Toxoma Rivalier, 1967

Physodeutera (Toxoma) Rivalier, 1967: 273 .

Type species. Megalomma sikorae W. Horn, 1896 (by original designation).

Differential diagnosis. Well-delimited subgenus. All species of Toxoma possess rather simple internal sac of the aedeagus lacking any distinct ventral spur, sclerites reduced to mostly thin arciform and satellite piece, basal plate, longitudinal sigmoid piece and in one species also an elongate-voluminous dorsal piece with apical tooth (the large, composed ventral arc piece and other sclerites, which are characteristic of the subgenus Diarrhiza Jeannel, 1946 , are absent). Body medium-sized, elytra with well-marked humeri, elytral punctation with usually coarser and more or less anastomosing punctures on anterior half, smaller and more spaced or nearly effaced on posterior area of elytral disc. Penultimate palpomeres of labial palpi moderately or more distinctly dilated (up to 0.40 mm wide) yet never so distinctly inflated as in the subgenus Diarrhiza ; mentum with indistinct, short and blunt central tooth. Mandibles almost symmetrical.