How to Tell Pselliopus cinctus from Pselliopus barberi
The base of the scutellum is straight across
Note the bisinuate base of the pronotum
Characteristic in Pselliopus barberi in Pselliopus cinctus Overall color Orange Less bright orange or brownish-yellow Base of pronotum Straight Bisinuate Black markings on anterior lobe of pronotum
Few to none
More black markings than P. barberi Black markings on head Less black than P. cinctus More black than P. barberi Black markings on scutellum Few to none; possibly 2 oblique streaks Present, and more than a couple of streaks Short spine before the rounded humeral angle Doesn't reach humerus. Blunt tip points out to sides Projects beyond humerus. Sharp tip points toward rear Elevation of pronotum Ridge or keel running lengthwise Essentially flat Egg clusters Linear Circular Duration of 5th instar 21-38 days 12-25 days Black marking on anteocular part of head, in 2nd to 5th instar nymph No V-shaped mark V shaped mark, from base of antenniferous tubercules, with the point of the V between the eyes
Nymph of Pselliopus barberi
No V-shaped mark in anteocular area
Nymph of Pselliopus cinctus with beetle prey
With V-shaped mark in anteocular area
See Davis (1912); Readio (1926); Blatchley (1926); Swadener and Yonke (1975).
See also our individual pages for Pselliopus barberi and Pselliopus cinctus
These two species have a largely similar, overlapping range (though there are more published records of P. cinctus).
Information about how to separate the two species has been hard to find for many years, and to prevent errors of earlier records from causing an erroneous map, we are combining the two species' records in this map:
A note about our maps
There are as yet no records outside the United States for Pselliopus cinctus or Pselliopus barberi.
American Insects site