112 Psyche [October DESCRIPTIONS OF SOME NEW TROPICAL PACHYGASTRINvE. By Charles W. Johnson, Boston Society of Natural History. In describing a species of Psephiocera from Jamaica, my attention was called to two apparently new species, representing one Psephi-ocera and one Chalcidomorphina from British Guiana. The above genera by Dr. Enderlein cover these forms, while a paper by Dr. Kertesz enables us positively to determine Cynipimorpha. With the limited material at hand, it is with some misgivings that I offer this paper, but the difficulty of obtaining smaller species from that region is so great that years slip by and they remain unde-scribed. For instance, the specimens at hand have been in my possession over eighteen years. It is to be hoped that the following bibliography and table of species will aid future workers. Cynipimorpha bilimeki Brauer. Fig. 1. C. bilimeki Brauer, Denkschr. der K. Akad., Wien, XLIV, 75, 1882; Kertesz, Ann. Mus. Nat. Hung., VI, 343, Tab. 6, Figs. 1,2, 1908. In the latter paper Dr. K. Kertesz has carefully redescribed Brauer's type and figured the antenna, thus enabling one to readily identify this species which otherwise would have continued to cause confusion among the closely related genera and species. I herewith reproduce the figure given by Kertesz. The genus has been emended to Cijnipomorpha by Enderlein, but the original spelling will have to stand. Psephiocera Enderlein. Zoologischer Anzeiger, 1914, Band 43, p. 300. Type P. flavipes Enderlein. Table of Species. 1 . Tomentum forming lines on the disc of the thorax 3 Tomentum covering the entire thorax 2 2. Scutellum and part of the pleura with light tomentum (Mexico) minuta Will. Scutellum with black tomentum, pleura shining black without tomentum (S. Brazil) flavipes Enderl.