92 ENTOMOLOGICAL NEWS. [Feb., 'l2 



esting observations on the variations in the maculation of Olla 

 abdominalis. 



Mr. J. C. Bridwell gave an interesting talk on the habits, 

 characters and distribution of an interesting group of Hymen- 

 optera, with exhibition of the species. 



Mr. Chas. Fuchs made remarks on his generic collection of 

 Cicindelidae and Carabidae, with exhibition of his generic ser- 

 ies. 



Mr. J. E. Cottle exhibited and made remarks upon an inter- 

 esting specimen of Pyrameis near nuilleri. 



Mr. F. W. Nunenmacher then referred to his studies on 

 Scymnus with exhibition of the following species of Coccin- 

 ellidae: Axion incompletus Nunenmacher, Psyllobora 

 koebelei, Hyperaspis wolcotti. Hyp. wellmani, Hyperaspis 

 -floribunda, Hyp. lateralis var. flammula; with Schaeffer's new 

 species and co-types of Rhysscniatus oculatus, Otidocephalns 

 basalis, Brachytarsus nigromacnlatus, Tychius sittiiralis, 

 Bruchus crenatus, Laccophilus insignis, Xylotrechus quercits. 

 Pogonocherus negundo, ChauliognatJins obscurus, Ch. vittatus, 

 Onthophagus arizonensis, Cymatodera antennata and Hydno- 

 cera fuchsi. 



Dr. C. Wellman exhibited specimens of the new Hornia 

 gigantea collected by F. X. Williams in Kansas, together with 

 other representatives of the Lyttid Tribe Sitarini, arranged so 

 as to show the relations of the genera. He pointed out that 

 through the palaeartic Hapalus, Stenoria, Sitaris, etc., the 

 elytral reduction led by degrees to such strange forms as the 

 Australian Sitarida and Goctyincs, and that these in turn 

 were replaced by the Asian Sitarobrachys and American Leon- 

 idia and Hornia, the last having the wings as well as the 

 elytra almost wanting and the tarsal claws simple ; in other 

 words, the degradation had become complete. 



In referring to Dr. Blaisdell's paper, he remarked, among 

 other things, that the embryology and metamorphosis of ani- 

 mals were valuable as interpretative side lights on phylo- 

 genetic descent and that the pale forms were as a rule (which 

 has many exceptions both from physical and selectional causes) 

 primitive, pigmentation being a comparatively late phenom- 



