Sept., 1912.] Proceedings of the Society. 209 



or a few species, and this insect is an example of the conditions that necessi- 

 tate so large a number of genera. The number of antennal joints is twelve in 

 this species, eleven in other species of the genus. It also differs from the 

 other species in the form of its thorax. In some respects it is nearer to the 

 genus Purpuricenus but differs again in the form of the mesosternum and has 

 been transferred to the genus Crioprosopus on that account. 



Mr. Schaeffer referred to the suggestion of Bates that a division of the 

 genus be based on the punctuation of the thorax, and to the uncertainty of 

 divisions based on the visible margin of the elytra and stated finally that the 

 species could not properly be included in any known genus. 



Mr. Schaeffer also spoke of Temnochila virescens and allied form, stating 

 that on looking up the description of the synonyms he found that it would be 

 justifiable to restore some of the older names. It is difficult to say which form 

 is the true virescens of Fabricius, but assuming that the type was received 

 through Drury to have come from our Southern States, as is most probable, 

 the name virescens would apply to our eastern form in which the punctua- 

 tion of the abdomen does not dift'er materially in the sexes — -chlorodia Mann, is 

 a Pacific form which should rank as a variety, aerea Lee. is probably a dark 

 form of virescens, acuta Lee. is, however, a valid species and as pointed out 

 by Sharp differs by having the punctuation of the abdomen entirely different 

 in the sexes, $ sparsely, ($ closely punctate and is moreover a larger insect, 

 with more parallel form and with the sensitive spaces of the ninth and tenth 

 antennal joints much larger. As a variety of acuta the form from Arizona 

 called nyenta by Mr. Dow at a recent meeting may be placed, characterized 

 by the anterior groove of the head being obsolete. Mr. Schaeffer said that 

 specimens from Texas approached this form very closely, though a close study 

 of long series might support its claim. 



Dr. Lutz, under the title " West Indian Triplets " described the journey 

 made by Professor Crampton, Mr. Miner and himself to the West Indian 

 Islands last summer, illustrating his remarks with lantern slides and radiopti- 

 con views. He first, using the map and relief topograph as illustrations, 

 briefly outlined the geography and geology of the islands, especially empha- 

 sizing the three geologic groups into which they may be divided and the 

 mountainous character of all of the islands visited. Then St. Thomas, St. 

 Croix, St. Kitts, Antigua, Guadaloupe, Dominica and other islands were 

 each described in some detail, with numerous illustrations of the scenery, 

 collecting grounds, etc. St. Thomas, long cultivated and largely deforested, 

 did not impress him favorably as a locality of biological study, thovigh it 

 offered surprising opportunities for collecting caterpillars, the natives point- 

 ing out caterpillar trees, so-called from the abundance of larvae. St. Croix 

 in place of barren hillsides presented well-watered valleys to the view with 

 streams and fertile banks. Night sweeping here yielded good results, but 

 the shores though apparently well fitted to sustain tiger beetles were disap- 

 pointing. Antigua's shores were inhabited by two species of Cicindela. and 

 Tetracha was there found under stones. Rain interfered very seriously with 

 collecting, but good results were obtained in sweeping along the margin of 



