Cardiocondyla strigifrons Viehmeyer 1922

Seifert, Bernhard, Okita, Ichiro & Heinze, Jürgen, 2017, A taxonomic revision of the Cardiocondyla nuda group (Hymenoptera: Formicidae), Zootaxa 4290 (2), pp. 324-356 : 344

Cardiocondyla strigifrons Viehmeyer 1922

Tab. 1

Cardiocondyla nuda ssp. strigifrons Viehmeyer 1922: 211 . Lectotype worker (by present designation), Indonesia, Java, Malang (labels " Java ", " Cardiocondyla nuda Mayr strigifrons Viehm. " and "GBIF-D/ FoCol 1611 specimen + label data documented") [ ZMHB, antweb.org images of specimen FOCOL 1611 ] (examined). Raised to species: Seifert 2003: 255.

All material examined. A total of 16 nest samples with 44 workers were subject to NUMOBAT investigation. Indonesia: Java: Malang , type C. strigifrons , pre 1922 (coll. Viehmeyer), [-7.97, 112.63] . Japan: Iriomote, 2013.09.18, No 198, (GenBank LC199020 ),[24.272, 123.829]; Ishigaki, 2013.09.19, No 206 (GenBank LC199021 ), [24.424, 124.083]; Ishigaki, 2013.09.20, No 211, (GenBank LC199022 ), [24.342, 124.197]; Iwata, 2013.07.17, No 162, (GenBank LC199023 ), [34.740, 137.888]; Nago 2013.09.17, No 191 (GenBank LC199024 ), [26.513, 128.013]; Shimonoseki, 2013.08.26, No 172 (GenBank LC199025 ), [33.990, 130.996] . Malaysia: Lundu, 2007.05.31, No 60/1, [1.683, 109.850]; Sarawak: Gunung Mulu National Park, 1978.03, [4.07, 114.90]; Tioman, 2007.06.0 8, No 141, [2.779, 104.203]; Ulu Gombak , 2002.12.24, No M 3, (GenBank DQ 023080 ), No M 51, [3.30, 101.78] . Philippines: Luzon: Baguio-W, 1999.02.17, No 11, [16.39, 120.54]. Papua New Guinea: Malai Island , [- 5.896, 147.943] . Singapore: Singapore, pre 1920 (coll H. Overbeck), [1.31, 103.83].

Geographic range. The known range of C. strigifrons extends over 6100 km and goes from Thailand over the Indomalayan Archipelago to Papua New Guinea and north to the south Japanese islands. The absence of very isolated populations suggests that it has a lower tramp species potential.

Diagnosis. The basic morphology is similar to the condition described for C. itsukii sp. nov. There are no subjectively perceivable characters known allowing a reliable separation of this species from the next related species C. kagutsuchi . The reduction of dorsal mesosomal sculpture proposed by Seifert (2003) as a character on the basis of a much smaller sample size is also found in other species and is only a statistical difference. Therefore, we omit a lengthy verbal description and refer to combinations of NUMOBAT characters presented in the key or in Tab.1.

Biology. The only known social type is a combination of several ergatoid males, intranidal mating and polygyny (observations in the laboratory of J. Heinze).