Tropidocephalini

Bartlett, Charles R. & Kennedy, Ashley C., 2018, A review of New World Malaxa (Hemiptera: Fulgoroidea: Delphacidae), Zootaxa 4441 (3), pp. 511-528: 513-514

publication ID

https://doi.org/10.11646/zootaxa.4441.3.5

publication LSID

lsid:zoobank.org:pub:D40D474F-A461-4F3C-967E-C833FFB342F3

persistent identifier

http://treatment.plazi.org/id/038ACF05-B343-FF92-FF1D-6C0AFA3C8E84

treatment provided by

Plazi

scientific name

Tropidocephalini
status

 

Key to Genera of New World Tropidocephalini  (revised from Bartlett 2009).

1 Body strongly dorsoventrally flattened ( Fig. 34 View Figure ); frons rather square, median carinae of frons forked ventrally near lower margin of eyes ( Fig. 35 View Figure ).................................................................. Procidelphax Bartlett 

- Body not flattened (e.g., Fig. 16 View Figure ), frons rectangular, median carinae not forked (e.g., Fig. 17 View Figure ), except dorsally near fastigium in some species......................................................................................... 2

2 Vertex much (ca. 1.5x) longer than broad, rounded anteriorly in dorsal view ( Fig. 30 View Figure ); median carina of vertex unbranched....................................................................................... Macrocorupha Muir  - Vertex shorter ( Figs. 31–32 View Figure ), more truncate anteriorly; median carina of vertex variable.............................. 3

3 Antennae very long ( Figs. 10, 12 View Figure ), exceeding posterior margin of mesothorax; both segments long (much longer than wide) with segment I nearly ½ length segment II........................................................ Lamaxa  n. g.

- Antennae not as long ( Figs 19–20 View Figure ), not exceeding mesothorax; generally segment I somewhat longer than wide and 1/3 or less length of II......................................................................................... 4

4 Lateral carinae of pronotum reaching hind margin ( Fig. 31 View Figure ); the Y-carina of vertex not distinct, sometimes forming a rounded areolet at apex of the median carina; anal tube with or without processes (a heterogeneous taxon, often strongly marked on body and wings)....................................................................... Columbisoga Muir 

- Lateral carinae of pronotum not attaining hind margin ( Fig. 32 View Figure ); the Y-carinae of vertex distinct, rounded areolet not present; anal tube without processes............................................................................. 5

5 Wings clear and unmarked (except fuscous at wing base in C. caresi  ); head and body uniformly colored ( Fig. 32 View Figure ); ventral margin of pygofer with broad forked process (also with a pair of lateral projections in the type species C. lloydi  ); aedeagus caudally directed or somewhat twisted, not strongly curved ventrad.................................. Columbiana Muir 

- Wings clear, strongly marked with fuscous ( Fig. 21 View Figure ); body dark, marked with pale (especially on head; Fig. 23 View Figure ); ventral margin of pygofer with broad scoop-like projection (not apically forked; Fig. 27 View Figure ) and a pair of lateral teeth; aedeagus strongly downcurved..................................................................................... Xalama  n. g.