NEW AMERICAN CRYPTOPID GENUS — CRABILL 11 



Subtropical lands inchiding America south of the United States. Its 

 species can be expected at seaports, and probably one or more Mexican 

 forms presently undetected have estabHshed themselves in our extreme 

 Southwest. 



Rhysida: A common Neotropical genus, Rhysida is represented in 

 the United States by at least one possibly established species, longipes 

 (Newport), discovered recently in southern Florida (Chamberlin, 

 1958, p. 14). Others may eventually be found in the Southwest. 

 The report of celeris (Humboldt and Saussure) in Georgia given by 

 Kraepelin (1902, p. 150) and repeated by Attems (1930, p. 189) has 

 not been corroborated by subsequent collections. My own suspicion 

 is that the species is not established in inland Georgia at the present 



time. 



Cryptopidae 



Theatops: Four species are known to occur in North America : T- 

 calif orniensis ChamberHn {?=erythrocephala (Koch)), California and 

 Oregon; phana Chamberlin, Texas; spinicauda (Wood), Mexico and 

 California in the West, in the East from northern Missouri and 

 Illinois south to the Gulf States, north through the Carolinas, con- 

 tinuing up the coastal plain probably as far as extreme southern 

 Pennsylvania; and postica (Say), recorded sporadically from Utah 

 and Arizona, in the East a very common and widespread centipede, 

 viz, southern Illinois to Ohio, south to the Gulf States, and north to 

 northern Virginia. In general, the western distribution of the genus 

 is poorly known, but east of the Plains States postica and spinicauda 

 have been reported from numerous localities, viz, very common in 

 the Southeastern Atlantic States, both extending northward to south 

 of the Great Lakes and well up the Atlantic coastal plain; not known 

 to occur in New York and New England. 



Newportia: Abundantly represented in the American Tropics, this 

 genus is as yet unrecorded from the United States; however, its 

 presence in the Southwest near Mexico is a possibility. 



Dinocryptops (formerly Scolopocryptops, see Crabill, 1953, p. 96): 

 D. m.iersii (Newport), a common Neotropical species, has been linked 

 several times with areas in the United States, principally California 

 and the Southeastern Atlantic States (Attems, 1930, p. 256, and 

 Kraepelin, 1902, p. 78). Chamberlin (1911, p. 475), probably follow- 

 ing Kraepelin, reported: "Doubtfully recorded from California. 

 However it is widespread in the Southeastern States and through 

 Mexico." Despite these reports I have yet to see a single 

 North American specimen, so that everything considered, I am in- 

 clined to doubt the presence of established populations in the South- 

 eastern Atlantic States. At the same time it seems not unreasonable 

 to anticipate finding, say, miersii in the Southwest near Mexico. 



