120 BULLETIN 108, UNITED STATES NATIONAL MUSEUM. 



is a myrmecophile. It has never before been recorded as occurring 

 in termite colonies. 



A peculiar Neuropterous larva was found in a colony oi flavipes in 

 a decaying branch lying on the ground neaj a stream at Falls Church, 

 Virginia, on July 18. This was a fully developed first form larva of 

 Mantispa, according to Dr. A. Boving, and is probably predaceous. 

 It appears as if it might be luminous at the body segments. After 

 placing it in alcohol it changed to a second form larva. 



On April 29, 1918, a colony of Prorhinotermes simplex was collected 

 in a decaying red mangi'ove log at Miami Beach, Florida, and placed 

 in rearing at Falls Church, Virginia. Two termitophilous adult 

 Staphylinid beetles (Microcyptus testaceus LeConte) were found in 

 this colony on July 24. 



Other adults of this termitophilous beetle were found in colonies 

 of Prorliinotermes simplex on February 28, 1919, in decaying red 

 mangrove logs in a swamp at Miami Beach. 



On February 24, 1919, at Princeton (near Homestead), Florida, 

 nymphs and a dealated pigmented adult of Zorotypus were again found 

 under moist bark on the imderside of a decaying Cuban pine log. 

 This log was infested with the termite Prorhinotermes simplex. In 

 this pineland other nymphs of Zorotypus were found. 



At Miami Beach, Florida, on February 27, nymphs and dealated 

 pigmented adults of Zorotypus were found under bark on dead stand- 

 ing white and red mangrove trees and on decaying logs in a swamp 

 with this same termite. Some colonies had reproductive forms 

 (large, distended third form queens) of the termite present. 



Later at Ortega, Florida, near Jacksonville, on March 5, nymphs 

 of Zorotypus were found under bark on a log where no termites were 

 present. It is concluded therefore that this peculiar insect is not 

 necessarily a termitophile but requires similar conditions of moisture 

 to the termites Prorhinotermes and Reticulitermes. Not more than 

 two dealated adults have been found in the same colony. 



Association with Ants. 



Wliile termites and ants are commonly to be found inhabiting the 

 same log or stump, yet ants are the worst enemies of termites. Ordi- 

 narily the relations between termites and ants are peaceful, even 

 when they occupy contiguous galleries or actually intermingle. The 

 ants seem to be indifferent to the presence of the termites until man 

 breaks into the nests, when the ants soon attack the termites. 

 Wlieeler (1913) has discussed the relations of ants to termites. 



Species of Cremastogaster, Camponotus, and Formica are common 

 associates of termites in eastern United States and are among the 

 worst enemies of the soft-bodied termites. Living termites have been 

 found in the mounds of Formica in Pennsylvania and Virginia. 



