452 ENTOMOLOGICAL NEWS [Dec., 'l2 



Studies of Some Pipunculidae from the Eastern 

 United States (Diptera). 



By E. T. CRESSON, JR., Academy of Natural Sciences, 

 Philadelphia, Pa. 



This paper is the results of a study of a small collection 

 sent to me by Mr. C. W. Johnson, of the Boston Society of 

 Natural History, for determination. It is rarely the case when 

 a collection of this family is studied, that there are not some 

 new forms brought to light. So we find, even in this small 

 amount of material, a new species and several of the oppo- 

 site sex of those heretofore described. This paper should be 

 used in conjunction with my monograph of this family (i) 

 to which I often refer. I wish here to acknowledge my indebt- 

 edness to Mr. C. W. Johnson for the loan of his type of P. 

 / allipes and other specimens, and especially to Dr. P. P. 

 Culvert for his kindness in examining the type of lateraUs 

 Walker in the British Museum of Natural History, and to 

 Mr. E. E. Austen for granting Dr. Calvert the privilege to 

 examine this type for me. 



Mr. Nathan Banks, while in London during his attendance 

 at the Second International Entomological Congress, made a 

 few notes on Walker's types of lateraUs, rcipnblicae and trans- 

 latus, but not having made an especial study of this group 

 and having no specimens along for comparison, he unfortu- 

 nately did not consider many of the most important characters 

 ii\ his notes and sketches. However, they give some new 

 b'ght upon these species, especially lateral-is, and as he kindly 

 tarned over these notes to me, I am indebted to him mainly 

 for the results here obtained relative to these species. 



I'ipunculus affinis Cresson. 



One male, Buena Vista, N. J., July loth. 



Agrees with the description but the stigma is less than one- 

 half as long as the following section. 



In my typical description of this species (2) the " ;" after 



(1) Trans. Amer. Ent. Soc. XXXVI, 267-329. pis. v-ix, 1911. 



(2) Trans. Amer. Ent. Soc. XXXVI, 283. 



