What does Cryptocercus kyebangensis, n.sp. (Dictyoptera: Blattaria: Polyphagidae) from Korea reveal about Cryptocercus evolution? A study in morphology, molecular phylogeny, and chemistry of tergal glands

Morphological differences of immature stages between males and females in a Korean wood‐feeding cockroach (cryptocercus kyebangensis)

“…In addition to xylophagy, Cryptocercus spp. live as family groups within complex galleries of rotten logs, and in mountainous forests (Cleveland et al, 1934;Seelinger and Seelinger, 1983;Nalepa, 1984;Grandcolas et al, 2001;Park, 2002). They live in prolonged pair bonding of a single male and female and provide proctodeal trophallaxis to their young (Cleveland etal., 1934;Seelinger and Seelinger, 1983;Nalepa, 1984;.…”

“…They occur in temperate forest mountains of western North America (C. Cleveland}), eastern North America (C. punctulatus), west China (C. matilei and C. primarius) and northeast Asia (C. kyebangensis and C. relictus) (Scudder, 1862;Bey-Bienko, 1950;Nalepa etal., 2001;Grandcolas, 2000;Grandcolas et al, 2001;Park 2002). In an American species, C. punctulatus, however, Burnside et al (1999) have Sexual Dimorphism of Cryptocercus kyebangensis separated the species into four different species including C punctulatus, including C. wrighti, C. darwini, and C. garciai.…”

“…It includes descriptions of full nymphal stages and morphological characteristics of immature stages in a Korean wood-feeding cockroach, C. kyebangensis, recently described by Grandcolas et al (2001).…”

Evolutionary trend of the small subunit nuclear ribosomal DNAs (SSU rDNAs) of wood-feedingCryptocercuscockroaches (Blattaria:Cryptocercus)

“…Cryptocercus species have been found only in a few forests of the Palearctic and Nearctic regions (Scudder 1862;Bey-Bienko 1950;Nalepa et al 1997Nalepa et al , 2001Burnside et al 1999;Grandcolas 1999aGrandcolas , 1999bGrandcolas , 2000Grandcolas et al 2001;Park et al 2004). In Nearctic regions, they show a disjunct distribution in the USA; Cryptocercus clevelandi is distributed in the Coast and Cascade Mountains of northern California and southwestern Oregon (Nalepa et al 1997), while Cryptocercus punctulatus species complex, also described as Cryptocercus darwini, Cryptocercus garciai, Cryptocercus punctulatus and Cryptocercus wrighti by Burnside et al (1999), is reported to occur along the Appalachian and Allegheny Mountains (Burnside et al 1999;Nalepa et al 2002).…”

“…In Nearctic regions, they show a disjunct distribution in the USA; Cryptocercus clevelandi is distributed in the Coast and Cascade Mountains of northern California and southwestern Oregon (Nalepa et al 1997), while Cryptocercus punctulatus species complex, also described as Cryptocercus darwini, Cryptocercus garciai, Cryptocercus punctulatus and Cryptocercus wrighti by Burnside et al (1999), is reported to occur along the Appalachian and Allegheny Mountains (Burnside et al 1999;Nalepa et al 2002). In Palearctic regions, Cryptocercus has been reported in only a few forests of Southwest China and Northeast Asia including Korea, Manchuria and Siberia (Bey-Bienko 1950;Grandcolas 2000;Grandcolas et al 2001;Nalepa et al 2001;Park et al 2004). …”