Zabalius ophthalmicus (Walker, 1869)
indigenous LC

Morphological description

Walker (1869) described this species as follows: Female: Green or pale luteous. Head a little narrower than the fore border of the prothorax; fore part paler, shining; keel of the vertex lanceolate, furrowed, a little shorter and narrower than the first joint of the antennae; front lanceolate between the antennae. Eyes reddish, round, prominent, with several black stripes. Prothorax with a few tubercles and with two strongly impressed transverse lines, which converge on each side and have between them an indistinct longitudinal line; fore border rounded; sides with a conical outline; hind border hardly angular. Oviduct black towards the tips, a little more than half the length of the abdomen. Legs stout; four anterior femora and tibia-3 with very minute spines, those on the fore femora merely rudimentary; hind tibiae with a few small spines on each of the four keels of equal length. Forewings broad, subfusiform, shorter by three lines than the hindwings; costa rounded; hind border nearly straight; secondary areolets irregular, very small; space between the scapular vein and the costa as usual; scapular and externo-medial diverging from each other and including some small quadrate areolets; areolets between the externomedial and the interno-medial in two rows, very large; those between the latter and the anal smaller; those between the anal and the interior border very small. Hindwings pellucid; apical patch green or pale luteous; veins very pale green or straw-colour. Length of the body 19 lines; expansion of the fore wings 60 lines. (A British line is approx. 2.1 mm).

Diagnostic description

Unknown.

Type notes

Type locality: Africa, southern Africa, KwaZulu-Natal

Global distribution

This species is distributed throughout the eastern part of sub-Saharan Africa (Hemp 2013). In countries like the Democratic Republic of the Congo, Kenya; Mozambique; Namibia; South Africa, Tanzania and Zimbabwe (Bazelet & Naskrecki 2014).

SA distribution

Bazelet & Naskrecki (2014) reported that in South Africa, the species is common in the eastern part of the country. In recent years, a population of the species was established in Cape Town and surrounding urban areas.

Movement

When threatened, the Blue-legged Sylvan Katydid extend and display their brightly coloured hind legs (Bazelet & Naskrecki 2014).

Trophic level

Herbivore - Folivore (leaf-eating)

Trophic strategy

Katydids feed on leaves, fruits, seeds and flowers. They are also specialised to feed on nectar and pollen. Herbivorous species feed on a wide variety of grasses and foliage of shrubs and trees. Many species are opportunistic and feed on any food source available. Some even feed on the dead animals. It is common to find a katydid feeding on a roadkill of their own kind or other insects. Head structures usually indicate the feeding habits of these insects, with rounded heads as characteristic for leaf-eaters. The slanted heads either crack the seeds or eat tough fruits or chew on wood. Others with projecting mouthparts are flower feeders (Rentz 2010).

Reproduction

This species lays its eggs in bark and then spends its entire life in trees (Bazelet & Naskrecki 2014).

Biome

Savanna, Grassland, Indian Ocean Coastal Belt, Albany Thicket, Fynbos.

Occurrence records map

This map contains point-based occurrences at different locations

iNaturalist: Data partners records: DNA:

Residence status

Occurrence in African countries and South African provinces. Residence status indicates if a taxon is indigenous, endemic, or alien in a specific region. This data is based on specimen records and literature.

FSA

SA

BOT

NAM

ESW

LES

WC

EC

NC

FS

GA

KZN

LP

MP

NW

Absent

Indigenous

Endemic

Naturalised

Invasive

Peter Vos

Names and Sources

Common Name Language
Blue-legged Sylvan Katydid En

Classification

KINGDOM Animalia

PHYLUM Arthropoda

CLASS Insecta

No results found for Zabalius ophthalmicus (Walker, 1869)

Uses

This species is not utilised.

10 results for Zabalius ophthalmicus (Walker, 1869)

Observation records

Date: 3/1/2018 9:49:00 PM

KwaZulu-Natal, South Africa

Data Resource: iNaturalist View record

Date: 7/30/2011 5:11:00 PM

KwaZulu-Natal, South Africa

Data Resource: iNaturalist View record

Date: 3/31/2013 12:00:00 AM

Western Cape

Data Resource: iNaturalist View record

Date: 2/12/2018 10:13:00 PM

KwaZulu-Natal

Data Resource: iNaturalist View record

Date: 5/20/2013 12:00:00 AM

Limpopo, South Africa

Data Resource: iNaturalist View record

Date: 11/11/2020 12:00:00 AM

KwaZulu-Natal, South Africa

Data Resource: iNaturalist View record

Date: 1/21/2021 9:56:00 PM

KwaZulu-Natal

Data Resource: iNaturalist View record

Date: 10/24/2020 11:39:44 AM

Eastern Cape, South Africa

Data Resource: iNaturalist View record

Date: 1/15/2015 11:30:00 AM

Mpumalanga, South Africa

Data Resource: iNaturalist View record

Date: 2/24/2021 6:20:02 PM

KwaZulu-Natal, South Africa

Data Resource: iNaturalist View record

Animal occurrence records per dataset

Animal occurrence records per year

Occurrence records map

This map contains point-based occurrences at different locations

iNaturalist: Data partners records: DNA:

2013

JOURNAL ARTICLE

Annotated list of Ensifera (Orthoptera) and further records on Caelifera (Orthoptera) of Mt Kilimanjaro, Tanzania

Hemp, C.. 2013. Annotated list of Ensifera (Orthoptera) and further records on Caelifera (Orthoptera) of Mt Kilimanjaro, Tanzania Vol. 3613(4) pp.301-342.

1869

BOOK

Catalogue of the specimens of Dermaptera Saltatoria in the collection of the British Museum

Walker, F.. 1869. Catalogue of the specimens of Dermaptera Saltatoria in the collection of the British Museum Vol. 3. Trustees of the British Museum pp.562.

1891

JOURNAL ARTICLE

Orthopterologische Beiträge. IV. Beiträge zur Systematik der Pseudophylliden Afrika's

Karsch, F.. 1891. Orthopterologische Beiträge. IV. Beiträge zur Systematik der Pseudophylliden Afrika's Vol. 36 (1). Publisher Berlin :In Commission der Nicolai'schen Verlagsbuchhandlung,1881-1914 pp.71—114.

2010

BOOK

A Guide to the Katydids of Australia

Rentz, DCF. 2010. A Guide to the Katydids of Australia. CSIRO PUBLISHING pp.1-213.

2020

WEB ARTICLE

Orthoptera Species File Version 2020

Cigliano, MM, Braun, H, Eades, DC, Otte, D. 2020. Orthoptera Species File Version 2020.

Status

Status and criteria

LC

Assessor(s)

Corinna Bazelet

Reviewer(s)

Axel Hochkirch