SUSTAINING THE WORLD THROUGH SCIENCE AND TECHNOLOGY

Biogeography


Delphacid planthoppers are diverse in all biogeographic ecozones.

The current pattern appears to be that delphacids are most diverse in the Palearctic; however, this is probably an artifact.  The Palearctic region is also where the taxonomy of delphacids is most studied and best known. Delphacids probably are most species rich in the moist tropics, but they are also very poorly known in the tropics.

Below is a table (updated from Asche 1985) summarizing the biogeographic distribution of delphacid planthoppers.

 

Geographic distribution of Delphacini (from Asche, 1985: 336) based on 229 genera, 1403 species.

Faunal Region

# Genera

# Species

%

Paleartic

114

388

27.7

Nearctic

33

271

19.3

Pacific

42

268

19.1

Indomalayan

69

230

16.4

Afrotropical

52

206

14.7

Neotropical

29

181

12.9

Australian

29

51

3.7

S. Atlantic

4

9

0.6

Totals sum to greater than 100% due to species found in multiple regions.

 

In the U.S., the Delphacidae are more species rich in the south, with Florida exhibiting the highest species richness.  Delphacids are relatively species poor in the northwest; however, collecting effort and reporting is very uneven and incomplete.

Distribution of Delphacidae in the U.S.

Distribution of the Delphacidae in the U.S. (From Bartlett et al. in review)

 

Below are some tables from Bartlett et al. (in press) providing different views of the diversity of planthoppers in the United States.

Bartlett et al. Memoirs AES 50 Table 3

Bartlett et al. Memoirs AES 50 Figure 94Bartlett et al. Memoirs AES 50 Table 4Bartlett et al. Memoirs AES 50 Table 5Bartlett et al. Memoirs AES 50 Table 7

A simple assessment of New World diversity of Delphacini

All species assigned to a single geographic region, based on either the type locality or the predominant portion of its range

Total species North of Mexico Caribbean Mesoamerica South America Widespread
1 Abbrosoga Caldwell, 1951  1 1
2 Achorotile Fieber, 1866 11 11
3 Aethodelphax Bartlett & Hamilton, 2011 8 8
4 Akemetopon Weglarz and Bartlett, 2011 3 2 1
5 Anchidelphax Fennah, 1965  2 1 1
6 Bakerella Crawford, 1914  13 12 1
7 Bostaera Ball, 1902  2 2
8 Caenodelphax Fennah, 1965  1 + + + + 1
9 Calbodus Spinola, 1852  2 2
10 Chionomus Fennah, 1971  3 2 1
11 Chloriona Fieber, 1866  1 1
12 Conomelus Fieber, 1866  1 1
13 Criomorphus Curtis, 1833  3 3
14 Delphacodes Fieber, 1866  94 54 5 10 25
15 Delphax Fabricius, 1798 3 3
16 Dicranotropis Distant, 1906 4 1 3
17 Elachodelphax Vilbaste, 1965 8 8
18 Euidelloides Muir, 1926 1 1
19 Euides Fieber, 1866 13 1 1 11
20 Eurybregma Scott, 1875  4 4
21 Eurysa Fieber, 1866  2 1 1
22 Falcotoya Fennah, 1969  1 1
23 Flavoclypeus Kennedy and Bartlett, 2014 8 8
24 Hadropygos Gonzon and Bartlett, 2008  1 1
25 Harmalia Fennah, 1969  1 1
26 Isodelphax Fennah, 1963  1 1
27 Javesella Fennah, 1963 11 11
28 Kelisoidea Beamer, 1950 1 1
29 Keyflana Beamer, 1950  1 1
30 Kormus Fieber, 1866  2 1 1
31 Kosswigianella Wagner, 1963 5 5
32 Kusnezoviella Vilbaste, 1965 1 1
33 Laccocera Van Duzee, 1897  10 10
34 Lepidelphax Remes Lenicov & Walsh, 2013 1 1
35 Liburnia Stål, 1866  3 2 1
36 Liburniella Crawford, 1914  1 1
37 Macrotomella Van Duzee, 1907  1 1
38 Matutinus Distant, 1917  1 1
39 Megadelphax Wagner, 1963  1 1
40 Megamelanus Ball, 1902  1 1
41 Megamelus Fieber, 1866  25 19 6
42 Meristopsis Kennedy et al. 2012 2 1 1
43 Metadelphax Wagner, 1963 5 1 1 + 2 1
44 Muellerianella Wagner, 1963 2 2
45 Muiridelphax Wagner, 1963 4 4
46 Neomegamelanus McDermott, 1952 5 4 1
47 Neoperkinsiella Muir, 1926  2 2
48 Nesosydne Kirkaldy, 1907  7 7
49 Nicetor Fennah, 1963  2 2
50 Nilaparvata Distant, 1906  4 1 3
51 Nothodelphax Fennah, 1963  15 14 1
52 Opiconsiva Distant, 1917  0
53 Paradelphacodes Wagner, 1963  1 1
54 Paraliburnia Jensen-Haarup, 1917  3 3
55 Pareuidella Beamer, 1951  5 5
56 Parkana Beamer, 1950  1 1
57 Penepissonotus Beamer, 1950  1 1
58 Peregrinus Kirkaldy, 1904 1 + + + + 1
59 Perkinsiella Kirkaldy, 1903 1 + + + + 1
60 Phrictopyga Caldwell, 1951  10 3 7
61 Phyllodinus Van Duzee, 1897  1 1
62 Pissonotus Van Duzee, 1897 43 32 1 7 3
63 Prokelisia Osborn, 1902 5 5
64 Pygospina Caldwell, 1951  5 3 2
65 Pyrophagus Remes Lenicov & Varela, 2005 [nomen nudum] 0 0
66 Ribautodelphax Wagner, 1963  2 2
67 Rotundifronta Beamer, 1950  1 1
68 Scolopygos Bartlett, 2002  1 1
69 Sogatella Fennah, 1956 2 + + + + 2
70 Sparnia Stål, 1862 3 3
71 Stobaera Stål, 1859 11 8 3
72 Syndelphax Fennah, 1963 9 3 + 2 3 1
73 Synpteron Muir, 1926  1 1
74 Tagosodes Asche and Wilson, 1990  10 1 2 2 3 2
75 Toya Distant, 1906 7 1 2 4
76 Tumidagena McDermott, 1952 3 3
77 Unkanodes Fennah, 1956  1 1
78 Yukonodelphax Wilson, 1992  2 2
Total species 435 268 26 40 92 9
  Total genera 78 55 19 21 29 7

 

References

Asche, M. 1985. Zur Phylogenie der Delphacidae Leach, 1815 (Homoptera: Cicadina: Fulgoromorpha). Marburger Entomologische Publikationen 2(1), volume 1 pp. 1-398, volume 2 pp. 399-910.

Bartlett, C. R., L. B. O’Brien and S. W. Wilson. In press. A review of the planthoppers (Hemiptera: Fulgoroidea) of the United States. Memoirs of the American Entomological Society 50: 1-300.