AQUATIC INSECTS IN THE ADIRONDACKS 575 



c e r a, whose immature stages were not observed : T. b o s c i i Desv. 

 T. saratogensis Fitch, and T. c 1 a r a Loew. 



Ortalidae. All along the above mentioned creek the handsome fly, 

 Melieria (Ceroxys) similis Loew, was very common in the 

 grass ; it was always abundantly represented in sweepings. Its imma- 

 ture stages were not observed. 



Tabanidae. These should be mentioned if only for their abundance. 

 We collected quite a number of species from the hatchery windows ; we 

 obtained many larvae but did not undertake to rear them ; all these were 

 sent, undetermined, to the state collection. 



Conopidae and Bombyliidae. It may be worth while mentioning that 

 the splendid v/asp-mimicker, Physocephala furcillata Will, 

 was a very common insect on the flowers of thistle and goldenrod, and 

 that a number of species of bombyliids flitted in numbers along every 

 roadside and path through the forest. 



Tipula abdominalis Say 



Plate 35, figure 2 



1823 Tipula abdominalis Say, Acad. nat. sci. Phil. Jour. 3:18 (The 



original description is excellent.) 

 1828 C t en o phora abdominalis Wiedmann, Aus. zweifl. ins. 1:37 

 1848 Tipula albilatus Walker, List dipt. ins. Brit. mus. 1 : 65 

 1859 C ten opb ora abdominalis Leconte, Complete writings T. Say, 



2:45 

 1878 Tipula abdominalis Osten-Sacken, Cat. Dipt. N. Am. p. 37 (listed) 

 1900 Tipula abdominalis? larva, Johnson, Ent. news. 11 : 578 (note) 



This giant crane fly was not raised. It was common about the 

 hatchery during August, and the workmen, impressed by its great size 

 and sprawHng attitudes, frequently brought in specimens picked from the 

 sides of the building. In the borders of the creek back of the hatchery 

 were found numerous tipuline larvae so large they could hardly belong 

 to any of our species except this one. They certainly could not be the 

 larvae of any other species we found at Saranac Inn. Therefore, I have 

 referred them by supposition to this species, and give herewith a descrip- 

 tion and figures. 



These larvae were associated with Bittacomorpha clavipes 

 in shallow bays filled with red-rotten trash in the edges of the creek, 

 various sizes from half grown to full grown occurring together. Pupae 

 were not found. 



Larva. PI.-36, fig. i, 2. Length 5 1 mm ; diameter 6 mm. 

 Body cylindric except at ends, tapering anteriorly on the thoracic seg- 

 ments, a Httle less narrowed on the two posterior segments abdominal. 



