Synonyms and other taxonomic changes
Pediodectes haldemanii (Girard)
Orig. Comb: Anabrus haldemanii Girard 1853
Fairly large Shieldback, and very stocky. Looks rather even and "smooth" in coloring, and is usually green (sometimes brownish). Top of pronotum usually dark toward the rear, especially at the "corners". Pronotum bordered pale with the rear margin edged very dark near black.
Great Plains: NM-LA-SD / Mex. - Map
- SINA, Map
Mostly found in grassland areas.
overwinters as eggs; adults from late spring to frost
Omnivorous, will eat plants, carrion, and will catch and eat smaller animals. Often come to lights at night to hunt.
Posted in correlation to photos:
"Haldeman's shield back katydid
Adult katydids seem to prefer a laid back hunting approach, allowing their prey to come within striking distance rather than pursuing it. They also showed little interest in non-moving prey. The shieldback's also exhibit no aggression when housed with the opposite gender though I have not yet tried housing the same gender together. They are strong jumpers but only seem to do so when they feel threatened. In my pair I also noticed that the male was more flighty and aggressive than the female, but that just might be the case with the individuals that I had. I fed them on a fairly steady diet of adult bearded dragon pelleted food and mealworms. The occasional cricket was also offered. Water was given by misting the sides of the tank which they drank the droplets from. I also provided hide boxes made of cardboard but would recommend something more sturdy and washable since I regularly had to replace these. The katydids remained on my back porch throughout the Texas hill country summer and were kept out of direct sunlight, dying off in the fall. My female left me roughly 80-100 eggs the size and shape of a grain of rice, which I transferred into a ventilated and lidded container of sand. The sand started off moist but was allowed to dry out over the winter before being moistened again in the spring as the temperature began to rise. The eggs did not begin to hatch until March but the substrate was kept moist throughout that time.
Nymphs are hatching in late March at temperatures in the low to mid seventies. Night temperatures are cool but remain above freezing in the forties. Conditions have been at thirty to forty percent humidity with the substrate the eggs are kept in (sand) being dry throughout the winter and moistened as conditions warmed. The eggs have been left in the shade but exposed to the heat with the number hatching being linked to increased temperature. Nymphs are small and frail, needing to be handled gently as they are transferred from the egg container to the nursery container. They also show a preference towards dark crevices and dim conditions greater than that of their parents. Although the parents were green and brown, all nymphs so far exhibit the same coloration of light brown with dark sidebars. The nymphs will eat recently killed mealworms as long as the internals are offered with easy access. Like their parents they seem to exhibit little or no interest in water crystals like those used for crickets but will drink water if it has been misted lightly on the sides of the container. The newly hatched nymphs vary slightly but noticeably in size but most appear to be slightly less than 1/2 centimeter long.
Eight eggs hatched on 3/28/16 when the temperature reached 73 degrees with a humidity of 65%.
Five eggs hatched 3/29/16 when the temperature was 66 degrees and the humidity was 93%.
The average length of a sample of eleven eggs was 5.364mm and the width averaged at 1.545mm. Nymph lengths also averaged at 5.273mm for eleven newly hatched nymphs."
Type locality: Barber County, Kansas
Girard, C. 1854. Pp. 230. In: R.B. Marcy and G.B. McClellan. Exploration of the Red River of Louisiana in the Year 1852.