ENTOMOLOGICAL NEWS 



AND 



PROCEEDINGS OF THE ENTOMOLOGICAL SECTION 



ACADEMY OF NATURAL SCIENCES, PHILADELPHIA. 



Vol. XXIV. 



NOVEMBER, 1913. 



No. 9. 



CONTENTS 



Blaisdell— Variations in the Macula- 

 tion of Olla abdominalis Say (Col., 



Coccinellidae ) 385 



Rau and Rau— Some Observations on 



Mud Wasps (Hymen.) 392 



Alexander — The Neotropical Tipulidae 

 in the Hungarian National Museum 



( Diptera ) — 1 404 



A Hale and Hearty Entomologist 412 



Crawford— Mexico Gulf Coast Citrus 



Fruit Association 412 



Editorial — A Little Learning 413 



Overman— Cystineura amymone ( Lep. ) 415 

 King George's Interest in Entomology 416 

 The Largest Living Insects (Orthop. ) 416 



Notice of Public Hearing on the Alli- 

 gator Pear Weevil ( Coleop. ) 416 



Entomological Literature 417 



Review of Folsom's Entomology, Sec- 

 ond Revised Edition 423 



Review of Perkin's Introduction to the 

 Fauna Hawaiiensis 424 



Feldman Collecting Social (Lepid., 

 Coleop., Hym.) 427 



AmericanEntomological Society! Orth., 

 Lep., Dipt., Odon., Hym.) 43° 



Obituary— Herbert Druce 432 



Dr. Auguste Puton 432 



Prof. Fritz Wachtl 432 



Dr. Paolo Magretti 432 



Variations in the Maculation of Olla abdominalis Say 

 (Coleop., Coccinellidae). 



By Frank E. Blaisdell, Sr., San Francisco, Cal. 



(Plate XIII.) 



The present paper is based on a study of the variations in 

 the maculation found to be present in a series of 200 speci- 

 mens of Olla abdominalis. collected on November 26, 1910, 

 at Vine Hill, Contra Costa County, California. 



At Vine Hill the meteorological conditions are moderate and 

 "tully-fogs" are frequent. 



The large series was collected from beneath the bark on 

 eucalyptus trees. These coccinellids were there to hibernate 

 through the winter, and the individuals were congregated in 

 groups of from two to twelve. They never congregate in 

 such immense masses as do the Hippodamiae. Usually there 

 was one Olla plagiata Casey with each of the groups, irrespec- 



385 



