858 Pomona College Journal op Entomology 



UBER DIE KOFFDRLSEN EINIGER NIEDEREN ORTHOPTEREN 



SERGIUS SUSLOV 



Zool. Jahrb. Bd. XXXV, H. 1, 1912. 



This is not only a study of the glands in Orthoptera but a consideration 

 as well of the comparative anatomy of these organs in both insects and myria- 

 pods. It is illustrated by three plates. 



UBER DIE .MORPIIOLOGIE DER HETEROPTEREN UND 

 HOilOPTERENSTIGlMA 



HEINO MAMMEN 



Zool. Jahrb. Bd. XXXV, H. 1, 1912. 

 Diagrams are given .showing the anatomy and mechanism of these open- 

 ings, and the conditions in a large number of .species as figured and described. 

 Stigma were found with one, two and three muscles. 



ZUR BIOLOGIE UND MORPHOLIGIE EINIGER PERLA-ARTEN 



VON EDWARD SCHOENEMUND 



Zool. Jahrb. Bd. XXXV, H. 1, 1912. 



In this article is given first a short description of the life conditions of 

 Perla and then a more extended account of the morphology of each of the 

 three largest species, the Perla marginata, Perla maxima, and the Perla cepha- 

 lotes. The tracheal system is of special significance. It appears in six brush- 

 like appendages on the sides of the thorax and two on the inner side of the 

 base of the cerei. 



The writer believes Perla to be a very ancient insect group because of 

 the simple structure of the body, the equal development of the abdominal 

 segments and especially t)ecause of the long caudal appendages. 



Edith IVIcConnell. 



THE LACINIA IN THE MAXILLA OF THE HY.MENOPTERA 



ALEX. D. MAC GILLEVRAY 



Ann. Ent. Soc. of Am., September, 1912. Vol. V, No. 3. 

 The lacinia were found to be present in the maxilla' of practically all the 

 Ilymenoptera examined. The only exception found was in tiie short tongued 

 bee, Augochlora. 



ANATOMY OF TIIE TOiMATO-WORM LARVA. PUOTOPARCE 

 CAROLINA 



ALVAH PETERSON 



Ann. Ent. Soc Am. Vol. V, No. 3, 1912. 

 This is a consideration of the extci-nal and internal structure. It includes 

 three plates of line cuts illustrating: digestive, respiratory, nmscular and 

 nervous systems. 



