ENTOMOLOGICAL NEWS. 271 



smaller than indicated in our original description and figure, 

 while in several others it agrees with that account. The spot 

 on the side of 9 sometimes lacks the tail. 



Russell Stream, excepting near the mouth, has numerous 

 sandy beaches, bars and low grassy islands just above low 

 water mark. On these the Scuddcri alight close to the water's 

 edge, in the middle of the day, but, toward evening, they settle- 

 on the low bushes on the sunny side of the stream. The}' are 

 wary and hard to approach. By scaring them away, crouch- 

 ing near their favorite alighting place and waiting, they would 

 return and were taken by dropping the net over them. The 

 females were scarce ; those seen were ovipositing in swift 

 shallow water \vith a pebbly bottom, or flying over the stream. 

 They would dart out of the bushes, make a dive for the water, 

 dip the abdomen down two or three times in quick succession, 

 then fly into the bushes usually out of reach. One female 

 came buzzing about our head and was captured and the pair 

 hi coif n came in reach of the net while flying by. Associated 

 with the above were O. rupinsulensis, Boyeria venosa andAesc/itia 

 constricta, the latter in great numbers. 



72. Dromogomphus spinosus Selys. 



A single male taken August 16, 1899, at Pushaw Pond, Old 

 Town, Maine. Some alighted on a large rock by a sandy beach 



(Harvey). 



Subfamily 4, CORDULEGASTERHSLSJ. 



73. Cordulegaster (Taeniogaster) obliqua Say. 



$ Total length 70 mm., abdomen 54 mm., hind wing 44 mm., alar ex- 

 panse 93 mm. Occiput yellow, quadrangular, one of the angles making 

 the highest central point ; a dark cluster of black hairs at the base next 

 the eye, at the base behind a median dark spot. Frons yellow, bordered 

 with brown near the post-clypeus and at the sides near the eyes. Post- 

 clypeus yellow, ante-clypeus pale brown with a small yellow spot on each 

 side near the outer edge. Labrum yellow, bordered narrowly with brown 

 and a narrow line of brown extending nearly to the middle from above. 

 Base of mandibles yellow, remainder dark brown or black. Other mouth 

 parts pale brown. Next to the occiput bordering the eye as far as the 

 middle a black band. Remainder of back of head brown. 



Thorax brown. Antehumeral stripe yellow, cuneiform, the point anterior. 

 These stripes are crossed by a few pale brown veins. Sides with two yellow 



