Other Common Names
Short-legged Shield-back Katydid (A. testacea), Eastern Shieldbacks. See SINA
for a list of species and common names.
Synonyms and other taxonomic changes
Explanation of Names
is from Greek Atlantikos
(Ατλαντικο'ς), pertaining to the Titan Atlas
, or the Atlas Mountains in North Africa (1)
ca. 25-35 mm body length, ♀♀ incl. ovipositor
up to 50 mm
Males have front wings (tegmina
) shorter than pronotum
. Female wings vestigial and covered by pronotum. Female has long, sword-like ovipositor
. Both male and female of all species are flightless.
Identification of species is challenging. For starters, refer to these illustrations from Rehn and Hebard (1916):
Note that the taxonomy used in that reference is not completely up-to-date.
e. NA; c. & e. Asia(3)
(apparently the only widespread genus of shield-backs in the east)
Dry deciduous and mixed woodlands: on ground and in low vegetation
June-October (adults, n. US); May-November (A. gibbosus, FL)
A. americanus--Piedmont, Sandhills, June-July; Mountains July-Sept.
A. gibbosus: Mountains?
A. monticola--Mountains, July-Sept.
A. pachymerus--Piedmont, Coastal Plain, June-August
Omnivorous, eat other insects (living and dead), fruits, leaves, flowers of a variety of vegetation.
Eggs overwinter in plant tissue or soil, one generation per year; males sing(5)
The Century Dictionary
--entry for Atlantic
, etc. (1)
illustrations of 2 spp. from MI
Rehn JAG, Hebard M. 1916. Studies in American Tettigoniidae (Orthoptera). VII. A revision of the species of the genus Atlanticus
(Decticinae). Trans. Am. Entomol. Soc. 42: 33-99. pl. 6-8. Full text
--several species accounts with photos, maps, songs