132 . Annals Entomological Society of America [Vol. VI, 



easily be separated by certain characters which we hope to 

 explain later. I noted with much interest the remarks on 

 oviposition habits of pratensis, and I would also add that we 

 have obtained the eggs of this species from ripe strawberries, 

 raspberries and blackberries, and for rearing the insect during 

 its various nymphal stages we have found nothing more satis- 

 factory than the berries of these different fruits. 



Victor E. Shelford, University of Chicago: The Ontogeny of 

 Elytral Pigmentation in Cicindela. 



The pigment develops in the form of a faint pattern, somewhat 

 variable but with certain lighter areas occurring in the same general 

 position in several species. These lighter areas lie between the trachea? 

 and in certain transverse bands: their positions correspond to those of 

 certain white markings of Ethiopian and Oriental species. 



Discussion: Miss Annette Braun — The question was raised 

 as to whether the position of the dark transverse bands on the 

 elytra of Cicindela is determined by structural characters of the 

 elytra, citing work on the ontogeny of wing pattern in certain 

 moths where the position of the tip of the veins decides the 

 position of markings, the tip of the vein remaining unpigmented. 



V. E. Shelford. The dark cross bands which separate the 

 spots are not correlated with any known elytral structures. 

 There is no evidence of metamerism in the wing. The pigment 

 develops throughout the elytron, the base does not appear 

 oldest. 



N. L. Partridge, University of Illinois: The Tracheation of 

 the Pupal Wings of some Saturnians. 



A method of preparing permanent mounts of lepidopterous pupal 

 wings was described. The pupal wings were removed in the customary 

 manner and the specimens secured, floated upon clean water to straighten 

 the wings and remove any dirt which might adhere to them. Then 

 they were placed on a clean, untreated, glass slide, smoothed, and allowed 

 to dry, without further treatment. The result was a transparent 

 mount showing all the tracheoles as well as the tracheae. Some of these 

 mounts were used as lantern slides giving clear images on the screen. 



It was shown that a greater amount of variation was found in the 

 pupal wings than in the adult wings. The homologies between the 

 tracheae and veins of the specimens shown was indicated. 



L. B. Walton, Kenyon College: Studies on the Month-parts 

 of Rhyparobia maderice (Blattidce) with a consideration of the 

 Homologies existing between the Appendages of the Hexapoda. 



The question as to the homologies existing among the paired append- 

 ages of the Hexapoda has received attention from various investigators. 



