1975] 
Forsyth — M etapolybia cingulata 
303 
Taylor, L. H. 
1939. Observations on social parasitism in the genus Vespula. Ann. 
Entomol. Soc. Amer. 32: 304-315. 
Wilson, E. O. 
1971. The Insect Societies. Belknap Press of Harvard Univ. Press, 
Cambridge, Mass. 548 pp. 
Yoshikawa, K. 
1955. A polistine colony usurped by a foreign queen: ecological studies 
of Polistes wasps II. Insectes Sociaux 2: 255-260. 
NOTE ON BITTACUS V A LI DUS IN BALTIC AMBER. 
In my reviews of Tertiary Mecoptera (1931, 1954), I expressed 
doubt that Bittacus validus , preserved in Baltic amber and described 
by Hagen in 1856, was actually a mecopteron. Recently, Dr. Her- 
mann Jaeger, of the Palaontologisches Museum ( Humboldt-Uni- 
versitat) in Berlin, sent me Hagen’s type specimen for study. It 
turns out to be a caddisfly, showing clearly the characteristic mouth- 
parts, hairy wings, and looped anal veins. Unfortunately, other 
structural features are so poorly preserved in the specimen that 
generic determination within the Trichoptera will probably prove 
impossible. For the present, at any rate, it seems advisable to list 
the insect as (Trichopteron) validus Hagen. [Reference: Carpenter, 
F. M., 1931, Journ. N. Y. Ent. Soc., 39: 412; 1954, Psyche, 61: 
36. Hagen, H. A., 1856, Berendt, Bernst. befindl. organ, reste vorw., 
2(1)19 1 J — F. M. Carpenter , Harvard University. 
