A. N. CAUDELL 135 



in fresh material, though the prouotum is very hkely proportionately broader 

 than in huhbnnli. 



Holotrjpe, female, Kokee, Kauai, Hawaii, August 19, 1921, 

 collected by Swezey in decayed log. Paratypes a, b, c and d, 

 females, same data as tj^pe except the last, which was collected 

 on August 21. 



Holotype and paratype a in collection United States National 

 Museum; paratypes b, c, and d in collections of Bernice Pauahi 

 Bishop Aluseum and Academy of Natural Sciences of Phila- 

 delphia. Catalogue No. 2.5416, U. S. N. M. 



Mr. Swezey writes that the region where this insect occurs is 

 a forested plateau, at an elevation of 3500 feet. It was found 

 quite common in decayed logs. 



The following key, based on that given by Silvestri,- maj- be 

 found useful in distinguishing the seven species of Zorotypus 

 now known: 



Key to the Species of the Genus Zorotypus 



1. Second and third segments of the antennae noticeably unequal in length. 2 

 Second and third segments of the antenna of about the same length .5 



2. Second segment of the antenna longer than the third . . guineensis Silvestri 

 Second segment of the antenna shorter than the third 3 



3. Second segment of the antenna no more than one-half as long as the third. 4 

 Second segment of the antenna more than one-half as long as the third. 



ceylonicus Silvestri 



4. Cerci with some lateral setae fully twice as long as the cercus; habitat, 



Java javanicus Silvestri 



Cerci with lateral setae noticeably less than twice as long as the cercus; 

 habitat, North America snyderi CaudcU 



5. Posterior femora armed beneath with but two stout chitinized s])in(>s: 



habitat. United States hubbardi C'audell 



Posterior femora armed beneath with six or more chitinized s])ines: habi- 

 tat, Central America or Hawaii tj 



6. Spines on ventral margin of posterior femora rather robust; habitat, 



Hawaii (introduced?) swezeyi Caudell 



Spines on ventral margin of posterior femora scarcely robust; habitat, 

 Costa Rica neotropicus Silvestri 



2 Boll. Lab. Zool. Portici, vii, p. 20.5, (1913). 



TRAXS. A.M. EXT. SOC, XLVHI. 



