WERNER MARCHAND 57 



The full grown Goniops larva, on the other hand, is pyriform and 

 not at all pointed at the ends. Its skin, except on the head and pro- 

 thorax, is not shining, but everywhere opaque and wrinkled or tuber- 

 culate. The palpi have long slender joints; the basal joint of the 

 antenna is very long, much exceeding the two terminal joints, and the 

 hairs on the antennal flap are flexible and attached to the surface 

 of the head. The double second joint of the antenna of first stage 

 larvae is noteworthy. 



Of the tabanid pupa Hart says: 



"The mesothorax is one-half longer than the prothorax and the second to 

 seventh abdominal segments are encircled by continuous fringes of slender spines." 



In Goniops the pupal mesothorax is three times longer than the 

 prothorax, and the fringes of spines on the abdominal segments are 

 not continuous but interrupted and definitely grouped. 



Goniops chrysocoma Osten Sacken. — A North American species, 

 known from not very frequent captures, from New York, New 

 Jersey, Pennsylvania, Ohio, and Maryland. Taken in June and 

 July, usually on foliage. 



Goniops chrysocoma (Plate 2, Fig. 28) is the only representative of 

 the Pangoniinae of which we know anything of the early stages, but 

 in this species our knowledge is rather complete owing to the obser- 

 vations of Walton and McAtee. 



Walton was the first to observe oviposition accurately and to 

 describe the egg. However, Walton relates that the first fly seen by 

 him was presented to him by Mr. Warren S. Fisher, of Highspire, Pa., 

 who took a female in the act of ovipositing on a leaf of what proved 

 to be Angelica on July 4, 1907, near Highspire. The plant overhung 

 a small more or less permanent ditch of water, and it was naturally 

 inferred that the larva might be aquatic in habit, in common with 

 others of the family. 



However, on June 14, 1908, while collecting on a dry hillside, in a 

 brush patch, about five miles to the eastward of the former locality, 

 Walton found another female of this species in the act of oviposition 

 on the under side of one of the leaves of a small oak sapling, to which 

 his attention had been attracted by a peculiar buzzing sound. The 



