2 ENTOMOLOGICAL NEWS. [January, 



about eighteen inches, and the imago emerged at 5 p.m. In 

 the boggy spot where the nymph was collected, at that time 

 the only surface water was that which was retained in small 

 depressions, such as the tracks of cattle, among the roots of 

 the sedges and grasses. On July 15, 1900, Mr. J. L. Graf 

 observed another female ovipositing in this same swale. She 

 alighted among the dense grasses and placed the eggs among 

 the roots or in wet decaying vegetable matter above the surface 

 of the water. She would raise and lower her abdomen eight 

 or ten times in one place, then fly to another spot. The time 

 was between 10 and 11 a.m. On June 23, 1900, at Ohio Pyle, 

 Mr. Graf discovered still a third female of this species oviposit- 

 ing. A mere thread of water flowed along the railroad track 

 from several small springs. The bed of this small stream was 

 composed of cinders and sand. The dragonfl}^ alighted in the 

 grass near this stream and placed her eggs in a small depression 

 in the cinders. This depression contained not more than a table- 

 spoonful of water. Into this small basin she thrust her abdomen 

 a number of times at the rate of fifteen or twenty times a minute. 

 Mr. Graf caught her as she started to fly away. Held in the 

 fingers she could not be induced to exude any more eggs. This 

 was about i p.m. Neither Mr. Graf nor myself could discover 

 the eggs where she had been ovipositing. While the female 

 was resting in the grass a male was either fluttering about or 

 resting on a large boulder close at hand. 



Description of Nymph. — Length 38 mm., including abdominal append- 

 ages ; tarsi 3-3-3 ; antennae 7-jointed ; lateral lobe of labium bent dorsally 

 near its posterior edge to form a mask winch covers the labrum and a 

 portion of the clypeus ; impression of the vulvar lamina and genital valves 

 present on the sternum of the ninth abdominal segment. Color entirely 

 concealed by the mud which encrusts the specimen and which a thorough 

 washing failed to entirely remove. It is possible that structural f 'laracters 

 may be obscured by this mud and so omitted in the following description. 



Head wide, angular, square, convex in front, concave behmd, the eyes 

 placed in the outer anterior corners ; roughened, generally sparsely hairy, 

 edges and tubercles with dense bristle-like hairs ; on each side, back of 

 the eyes two prominent edges and a less developed one above ; face in 

 front of base of antennae vertical ; antennae 3.5 mm. long, hairy, flattened, 

 the basal joint largest, terete, with the external edge angular ; last joint 

 small, apex irregular ; other joints about equal in size, slightly larger 

 basally, about half as long as wide. Labium short and broad ; middle 



