Valid Names Results

Thecatosoma verticale Takagi, 2022 (Diaspididae: Thecatosoma)

Thecatosoma verticale Takagi 2022: 33. Type data: MALAYSIA: Borneo, Sarawak, Taman Bako, on >Ormosia sp., 10/14/1991, by S. Takagi. Holotype, female, by original designation Type depository: Kepong: Forest Research Institute of Malaysia, Selandgor, Malaysia; accepted valid name Illustr.

Families: 1 | Genera: 1

Countries: 1

Systematics: Thecatosoma verticale is very similar to T. caudatum], but it is peculiar in having a pair of rounded protuberances or humps on the vertex. It seems that the humps are fairly stable in occurrence, and they are clearly visible especially in full-thecate individuals. This species differs from T. caudatum also in several other characters: the shorter antennal setae, the stable occurrence of lateral macroducts on the metathorax, and the wider interlobular space of the median trullae. These differences are subtle, but they may support the view that the two are different species. (These two species show a clear difference in the occurring pattern of submedian dorsal macroducts. (Takagi, 2022) in the second-instar males.)
Structure: Theca ca.3.6–5.0 times [n=10] as long as wide when fully formed; lateral margins subparallel, usually slightly curved outwards on one or both sides (sometimes curved on both sides and symmetrically, making the whole theca narrowly fusiform); vertex with a pair of rounded protuberances or ‘humps’ laterally; posterior end (posterior margin of abd I) rounded. (Takagi, 2022)
Biology: Males and females occurring on upper surface of leaves, females mainly along margin. (Takagi, 2022)
General Remarks: Detailed description and illustration in Takagi, 2022.

Takagi2022: description, diagnosis, distribution, host, illustration, taxonomy, 33-34, 44, 46