Slant Faced Grasshopper

The grasshopper subfamily Acridinae, sometimes called silent slant-faced grasshoppers, belong of the large family Acrididae in the Orthoptera: Caelifera.

Description

In appearance, the species are often similar to those of the subfamily Gomphocerinae, with whom they share a slanted face. However Acridinae differ from Gomphocerinae in that they lack stridulatory pegs on their hind legs and thus, as the common name suggests, do not make sounds. The antennae of this species is flattened and sword-like, a trait also shared with some gomphocerines and also with the spurthroated grasshoppers (subfamily Cyrtacanthacridinae). They lack the posternal spine seen in the spurthroated grasshoppers and lubber grasshoppers (subfamily Romaleinae). Hind wings in this species range from nearly colorless to colorless.^[1]

Tribes and genera

The Orthoptera Species File lists the following:^[2]

Acridini

Auth.: MacLeay, 1821; distribution: widespread in warmer parts of the Old World & Australasia
(partial list):

• Acrida Linnaeus, 1758
• Acridarachnea Bolívar, I., 1908
• Cryptobothrus Rehn, 1907
• Keshava (insect) Gupta & Chandra, 2017

Calephorini

Calephorus compressicornis

Auth.: Yin, 1982; distribution: Africa, Europe, Indo-China; single genus:

• Calephorus Fieber, 1853

Gymnobothrini

Zacompsa pedestris

Auth.: Uvarov, 1953 - Africa

1. Brachybothrus Popov, 2019
2. Chirista Karsch, 1893
3. Comacris Bolívar, 1890
4. Coryphosima Karsch, 1893
5. Guichardippus Dirsh, 1959
6. Gymnobothrus Bolívar, 1889
7. Hulstaertia Ramme, 1931
8. Keya (insect) Uvarov, 1941
9. Malcolmburria Uvarov, 1953
10. Oxybothrus Uvarov, 1953
11. Rastafaria Ramme, 1931
12. Roduniella Bolívar, 1914
13. Tenuihippus Willemse, 1994
14. Zacompsa Karsch, 1893

Hyalopterygini

Auth.: Brunner von Wattenwyl, 1893; distribution: Americas

1. Allotruxalis Rehn, 1944
2. Cocytotettix Rehn, 1906
3. Eutryxalis Bruner, 1900
4. Guaranacris Rehn, 1944
5. Hyalopteryx Charpentier, 1845
6. Metaleptea Brunner von Wattenwyl, 1893
7. Neorphula Donato, 2004
8. Orphula Stål, 1873
9. Parorphula Bruner, 1900
10. Paulacris Rehn, 1944

Pargaini

Auth.: Uvarov, 1953 - Africa

1. Acteana Karsch, 1896
2. Machaeridia Stål, 1873
3. Odontomelus Bolívar, 1890
4. Parga (insect) Walker, 1870
5. Phryganomelus Jago, 1983

Phlaeobini

Phlaeoba sp.

Auth.: Brunner von Wattenwyl, 1893 - Africa, Middle East, Asia

Truxalini

Auth.: Serville, 1838

1. Acridarachnea - monotypic A. ophthalmica Bolívar, 1908
2. Chromotruxalis Dirsh, 1950
3. Oxytruxalis Dirsh, 1950
4. Truxalis Fabricius, 1775
5. Truxaloides Dirsh, 1950
6. Xenotruxalis Dirsh, 1950 - monotypic X. fenestrata (Ramme, 1929)

Genera incertae sedis

Genera sometimes or formerly placed here

• Achurum and Mermiria (otherwise in Gomphocerinae)
• Gastrimargus (otherwise in Oedipodinae).
• the tribe Parapleurini (containing Stethophyma) is now placed in Oedipodinae.^[3]

References