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Leades Jacobi, 1928

(according to FLOW data updated on January 14 2025)
This synthesis is built dynamically and automatically from data in FLOW. They might be incomplete!
Help to make this synthesis more relevant by reporting and sending missing referenced data to FLOW.

1. Leades Jacobi, 1928 taxonomy

Leades Jacobi, 1928 is currently considered as a valid taxon of genus rank in the family Cixiidae Spinola, 1839 of the Fulgoromorpha. This genus was first described by Jacobi A. in 1928 in the following paper: Rhynchota Homoptera. 1. Fulgoridae und Cercopidae in Results of Dr. E. Mjöberg's Swedish Scientific Expeditions to Australia 1910-1913. Arkiv for Zoologi. Utgifvet af K. Svenska Vetenskaps-akademien. Stockholm, 19(28) : 1-50.

It is currently classified in order Hemiptera Linné, 1758, suborder Fulgoromorpha Evans, 1946, superfamily Delphacoidea Leach, 1815, family Cixiidae Spinola, 1839, subfamily Cixiinae Spinola, 1839, tribe Cixiini Spinola, 1839.

Currently 6 species have been described in Leades, as summarized in Table 1.


Table 1. Latest inner classification of Leades Jacobi, 1928.

The type species of the genus is Leades rufinus Jacobi, 1928.

Leades is an extant taxon.

2. Leades Jacobi, 1928 geographical distribution and bioregions

According to the geographical TDWG standard (2001), Leades Jacobi, 1928 are known from the Australasia biogeographical region as defined by Wallace (1876). More precisely, they are distributed in the Australian zoogeographic region as defined by Holt (2013). Figures 1 and 2 display dynamic graphs showcasing the longitudinal and latitudinal profiles of Leades Jacobi, 1928 arround the across the globe according to their species richness. A scroll on the histogram bars displays the species richness of the corresponding regions.



3. Leades Jacobi, 1928 biological interactions

As all planthoppers, Leades Jacobi, 1928 are obligatory phytophagous terrestrial insects; they mainly feed on host plants belonging to the following orders: Apiales (Pittosporaceae), Asterales (Asteraceae), Caryophyllales (Amaranthaceae), Dilleniales (), Ericales (Ericaceae), Fabales (Fabaceae), Lamiales (Scrophulariaceae), Laurales (Lauraceae), Malvales (Malvaceae, Thymelaeaceae), Myrtales (Myrtaceae), Proteales (Proteaceae), Rosales (Rosaceae) and Sapindales (Rutaceae, Sapindaceae).
Figure 3a depicts the orders of plants on which Leades Jacobi, 1928 feeds, and figure 3b the percentage they represent in the diet for the entire genus. Figures 4a and 4b do the same more precisely for the family level of these plants.

Figure 3. Information on plants orders used for feeding by Leades Jacobi, 1928.
Figure 4. Information on plants families used for feeding by Leades Jacobi, 1928

References:

  • Bourgoin Th. 2025 - FLOW (Fulgoromorpha Lists on The Web): a world knowledge base dedicated to Fulgoromorpha. Version 8, updated 14-January-2025. http://flow.hemiptera-databases.org/flow/
  • Brummitt R. K. 2001 - World geographical scheme for recording plant distributions. Edition 2. TDWG 136pp. updated 08-May-2007. http://www.tdwg.org/standards/109/
  • Holt B. G. et al. 2013 - An Update of Wallace's Zoogeographic Regions of the World. Science, 339: 74-78.
  • Jacobi A. 1928 - Rhynchota Homoptera. 1. Fulgoridae und Cercopidae in Results of Dr. E. Mjöberg's Swedish Scientific Expeditions to Australia 1910-1913. Arkiv for Zoologi. Utgifvet af K. Svenska Vetenskaps-akademien. Stockholm, 19(28) : 1-50
  • Linné C. 1758 - Systema Naturae. Editio Decima, reformata. 1: 824 pp.
  • Wallace A. R. 1876 - The Geographical Distribution of Animals. Cambridge University Press, Cambridge.