DIPLATYIDAE, Verhoeff, 1902

Popham, Edward J., 2000, The geographical distribution of the Dermaptera (Insecta) with reference to continental drift, Journal of Natural History 34 (10), pp. 2007-2027 : 2010

DIPLATYIDAE

( Map 3 )

The study of Haas (1995) was based upon several species of Diplatys , but in his gure 7 of for®culine phylogeny, he does not use the family name, but that of Diplatys jacobsoni . In this study, the name`Diplatyidae’ is used to include the subfamily Cylindrogastrinae , but not the genus Haplodiplatys .

The penis lobes of the Cylindrogastrinae possess a single virga, in contrast to the double virga of other diplatyid earwigs. The restricted occurrence of this subfamily

South America (table 2), along with some species of the Haplodiplatys , suggests a neotropical evolutionary centre for two of the three of these taxa. Figure 1 gives a possible tree for the Diplatyidae and Haplodiplatys . The occurrence of these taxa in South America, Africa, Madagascar and India suggests that both the Diplatyinae and Haplodiplatys were widely distributed in these land masses, before the disintegration

Gondwanaland. This means that those taxa present in the Oriental Region and East Indies could only have been derived from Gondwanaland taxa and that no means existed for migration in the opposite direction. If these Oriental species are not considered, the`diplatyid’ originally evolved in either South America or Africa .

Figures

MAP 3. Distribution of the Diplatyidae.

FIG. 1. A possible tree for the`Diplatyid’ taxa.