Genus Horcoma Fennah, 1969
Compiler and date details
10 January 2014 - Murray J. Fletcher
- Horcoma Fennah, R.G. 1969. Fulgoroidea (Homoptera) from New Caledonia and the Loyalty Islands. Pacific Insects Monographs 21: 1-116 [36].
Type species:
Delphacodes lacteipennis Muir, 1917 by original designation.
Introduction
This small genus was first recorded in Australia by Bellis et al. (2013) with a single species recorded in the "top end" (=north) of both Northern Territory and Queensland.
Distribution
States
Northern Territory, Queensland
IBRA
NT, Qld: Cape York Peninsula (CYP), Darwin Coastal (DAC), Wet Tropics (WT)
Distribution References
- Bellis, G.A., Donaldson, J.F., Quintao, V., Rice, A., Tenakanai, D. & Tran-Nguyen, L. 2013. New records of Delphacini (Hemiptera: Delphacidae: Delphacinae) from Australia, Timor Leste and Papua New Guinea, and an updated checklist of Delphacini from Australia. Austral Entomology 1–8 [Pagination is from electronic version; print version Austral Entomology (2014) 53, 167–174] [4]
Diagnosis
Vertex as long as broad, basal compartment short, about 3 x as broad as long in middle, distal portion of vertex insensibly curving into frons, mediolateral carinae meeting on apparent frons and abundantly visible in anterior view; apparent frons about 2 x as long as broad, widest in basal 1/2, median carina forked basally, postclypeus strongly convex, about as broad as long, rostrum just surpassing mesotrochanters, ocelli distinct, blemmata present, antennae short and stout, reaching to frontoclypeal suture, basal segment as long as broad at apex, or a little longer than broad, 2nd segment not quite 2 x as long as 1st, eyes reniform, deeply excavate below. Pronotum with disc a little broader at anterior margin than long in middle line, lateral carinae strongly diverging posteriorly, not attaining hind margin; post-tibial spur not as long as basal metatarsal segment, thin with 15–20 teeth on margin, apically unarmed, only a very narrow strip of minute setae along margin. Anal segment of male ring-like, with apical angles each produced ventrad in a spinose process. Pygofer strongly rounded, with posterior opening relatively small, longer than broad, diaphragm narrow. Aedeagus rather short, tubular, ascending distad, orifice at apex. Genital styles relatively short and stout (Fennah 1969).
Diagnosis References
Fennah, R.G. 1969. Fulgoroidea (Homoptera) from New Caledonia and the Loyalty Islands. Pacific Insects Monographs 21: 1-116 [36]
History of changes
| Published | As part of group | Action Date | Action Type | Compiler(s) |
|---|---|---|---|---|
| DELPHACIDAE Leach, 1815 | 03-Jan-2014 | ADDED | Dr Murray Fletcher |