124 
Psyche 
[March 
B. Gurney (Insect Identification and Parasite Introduction Research 
Branch, U.S.D.A.) has informed me that the specimens appear to be 
nymphs of Compsodes schwarzi (Caudell). Practically nothing is 
known of this insect although Ball et al. (1942) reported that a 
winged male was taken in an ant nest in the Santa Rita Mountains. 
Fifty- two syrphid larvae (4-15 mm. long) were taken near the 
center of the colony from Hereford. Of several larger larvae which 
were set aside, one eventually pupated and developed into an adult. 
Willis W. Wirth (Insect Identification and Parasite Introduction 
Research Branch, U.S.D.A.) kindly identified the specimen as 
Tenthredomyia tridens (Loew). At least one member of this genus 
has been recorded “breeding” in the wounds of large trees (Wirth, 
1964, in litt.). The presence of so many larvae, closely applied to the 
walls of the galleries containing the highest concentrations of the 
termites, is indeed puzzling. A few of the cockroaches and larvae 
were put into the large laboratory termite colonies, but it was im- 
possible to observe anything beyond the fact that all three insects 
appeared to be indifferent to each other. 
Additional collections of Z. laticeps are planned so that these 
associations can be studied further. In co-operation with Gordon B. 
Castle of Arizona State University, biological studies on laboratory 
colonies of the termite are also in progress. 
References Cited 
Ball, E. D., E. R. Tinkham, Robert Flock, and C. T. Vorhies. 
1942. The grasshoppers and other Orthoptera of Arizona. Univ. Ariz. 
Agric. Expt. Sta. Tech. Bull. No. 93, p. 266. 
Banks, N. 
1906. Two new termites. Ent. News, 17:336-337. 
Banks, N., and T. E. Snyder. 
1920. A revision of the nearctic termites (Banks) with notes on biology 
and geographic distribution (Snyder). U. S. Nat. Mus. Bull. 
No. 108, 228 pp. 
Castle, G. B. 
1934. The damp-wood termites of western United States, genus 
Zootermopsis. I. General biology and ecology, pp. 273-291. In 
Kofoid, C. A., et al. [eds.] Termites and Termite Control, 2nd 
Ed., Univ. Calif. Press, Berkeley. 
Cazier, M. A. 
1962. Personal communication. 
Emerson, A. E. 
1933. A revision of the genera of fossil and recent Termopsinae 
(Isoptera), Univ. Calif. Publ. Ent., 6: p. 187. 
Emerson, A. E. 
1960. Personal communication. 
