338 ENTOMOLOGICAL NEWS [Oct., '14 



1900, however, he was able to state that this insect belonged 

 to the New World, as M. Martin possessed a specimen from 

 Chiriqui, in Panama. 



About 1903 Mr. C. F. Underwood collected at Carrillo, 

 Costa Rica, six males of Thaumatoneura and sent them to 

 London, where they were acquired by Dr. F. D. God- 

 man, and sent to me for study. Four of the six were the 

 inopinata of McLachlan with the middle of each wing crossed 

 by a broad, dark brown band. The other two had the wings 

 uncolored, wherefore they received the name Thawna- 

 toneura pellucida (Calvert, 1904). 



On June 23, 1909, the first day of our first stay at Juan 

 Viiias, Costa Rica, our lepidopterological friends, Messrs. 

 William Schaus and J. Barnes, gave us some Odonata which 

 they had taken there for us, including some males of both 

 inopinata and pellucida and two female Thaumatoneurae, so 

 different from the males that it was impossible to determine 

 to which of the two species they should be referred ; they had 

 the tips of all the wings dark brown. Thereafter, Thauma- 

 toneura became for us one of the principal attractions of Juan 

 Vifias, that delightful spot which, as readers of the NEWS are 

 already aware, furnished us with the remarkable larvae of 

 Cora, of Mecistogaster modestus, and of other species still 

 to be described. 



HABITATS AND HABITS. 



Of all the localities in Costa Rica which we visited, Juan 

 Vinas was the only one where we ever saw Thaumatoneura. 

 We were not at Carrillo, but in many respects the Odonate 

 fauna of this place, judging from Mr. Underwood's collection 

 recorded in the Biologia Centrali- Americana, is very similar 

 to that of Juan Vifias. The former is on the northern, the 

 latter on the southeastern slope of the volcano Irazu and their 

 respective altitudes are 300 and 1040 metres (980 and 3400 

 feet). Thaumatoneura must surely live in still other places 

 in Costa Rica. 



In our experience Thaumatoneura, as adult or as larva, 

 was never more than a few yards distant from a waterfall and 

 was most abundant within its spray. The sides of the canyon 



