Family (Alpha): ACRIDIDAE GRYLLACRIDIDAE GRYLLIDAE GRYLLOTALPIDAE RHAPHIDOPHORIDAE ROMALEIDAE TETRIGIDAE TETTIGONIIDAE TRIDACTYLIDAE
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Conocephalus aigialus Conocephalus allardi Conocephalus brevipennis Conocephalus fasciatus Conocephalus nemoralis Conocephalus nigropleuroides Conocephalus saltans Conocephalus spartinae Conocephalus stictomerus Conocephalus strictus Conocephalus unidentified species Odontoxiphidium apterum Orchelimum agile Orchelimum bradleyi Orchelimum campestre Orchelimum carinatum Orchelimum concinnum Orchelimum erythrocephalum Orchelimum fidicinium Orchelimum militare Orchelimum minor Orchelimum nigripes Orchelimum pulchellum Orchelimum superbum Orchelimum vulgare Orchelimum unidentified species Belocephalus subapterus Bucrates malivolans Neoconocephalus bivocatus Neoconocephalus caudellianus Neoconocephalus ensiger Neoconocephalus exiliscanorus Neoconocephalus melanorhinus Neoconocephalus palustris Neoconocephalus retusus Neoconocephalus robustus Neoconocephalus triops Neoconocephalus velox Neoconocephalus unidentified species Pyrgocorypha uncinata Amblycorypha alexanderi Amblycorypha arenicola Amblycorypha bartrami Amblycorypha carinata Amblycorypha longinicta Amblycorypha oblongifolia Amblycorypha rotundifolia Amblycorypha unidentified species Microcentrum retinerve Microcentrum rhombifolium Montezumina modesta Inscudderia walkeri Scudderia unidentified species Scudderia cuneata Scudderia curvicauda Scudderia curvicauda laticauda Scudderia fasciata Scudderia furcata Scudderia septentrionalis Scudderia texensis Pterophylla camellifolia Atlanticus americanus Atlanticus gibbosus Atlanticus monticola Atlanticus pachymerus Atlanticus unidentified species Hubbellia marginifera Atlanticus davisi NC Records
Atlanticus pachymerus (Burmeister, 1838) - Southern Protean Shieldback
Taxonomy
Family: Tettigoniidae
Subfamily: TettigoniinaeTribe: DrymadusiniSpecies Status: This species appears to be closely related to A. testaceus, with which it has sometimes been combined (e.g., SINA, 2017). However, it is treated as a separate species in the Orthopteran Species File (OSF, 2017) and is distinct in several characters, including the tegmina of the males, which are much shorter than in testacea (Rehn and Hebard, 1916b). We follow OSF and Rehn and Hebard in treating the two as separate species and use their names for specimens Rehn and Hebard collected in North Carolina. While there is some possibility that both species could occur in North Carolina, Rehn and Hebard did not know of any specimens of testaceus from farther south than Arlington, VA and we have not seen any specimens -- particularly males -- that show the characteristics of testaceus. Genetic analysis would be helpful in resolving the taxonomy of this genus. However, too few specimens have currently been examined and BOLD does not provide any trees based on bar-coding that are available to the public.
Identification
Field Guide Descriptions: Online Photographs: BugGuide , Google Images ,
iNaturalist , GBIF Comments: Average body length: 24.4 mm, NC males (n=4); 24.0, NC females (n=7) (Rehn and Hebard, 1916b). Length of pronotum: 9.1, NC males; 10.1, NC females. Length of hind femur: 20.6, NC males; 22.8, NC females.Singing Behavior: Songs consist of high pitched buzzes that are either more-or-less continuous or regularly broken into short phrases; the separation between phrases is usually equal in length or shorter than the phrases themselves. The dominant pitch is about 15 kHz but the frequency range extends above 22 kHz. The lower portion of the song -- below 11 kHz -- sounds like a fluttery, pulsating buzz to human ears, if it can be heard at all.Recording playback at normal speed.
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"MP4"
Recording playback at half-speed. (Slower, lower-pitched, usually more audible version.)
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"MP4"
Distribution in North Carolina
County Map: Clicking on a county returns the records for the species in that county.
Adult Dates: Click on graph to enlarge
Habitats and Life History
Habitats: Diet: Observation Methods: Abundance/Frequency: Adult Phenology:
Status in North Carolina
Natural Heritage Program Status: Natural Heritage Program Ranks: State Protection: Comments:
Image Gallery for Atlanticus pachymerus - Southern Protean Shieldback Recorded by: T. Howard Recorded by: Steve Hall Recorded by: David L. Heavner Recorded by: David L. Heavner Recorded by: Steve Hall and Savannah Hall Recorded by: Steve Hall Recorded by: J. Oksnevad Recorded by: Julie Tuttle Recorded by: Stephen Hall Recorded by: Stephen Hall Recorded by: Stephen Hall Recorded by: Stephen Hall Recorded by: Stephen Hall Recorded by: E. Corey Recorded by: ASH Recorded by: Stephen Hall
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