NO. 1692. DR.ACfONFTJES OF TlIF MIHSfSSi PI'I \ ALLEY— \VI LSOX. Q^'J 



11. LEUCORHINIA PROXIMA Calvert or FRIGIDA Hagen. 



Both sexes secured. Males with yellow s^ots along the back of the thorax 

 and the first five abdominal segments; seventh, eighth, and ninth seg- 

 ments much dilated; tvA-o large yellow spots on the ventral surface of 

 second segment; lower appendages fused with a nmch shallower notch 

 between them than in iiifacla. Females \^itli the basal half of the 

 wings, or at least lo the inclosing of the triangle, colored red ; dorsal 

 yellow spots like the male but not as distinct; ventral surface of second 

 to seventh segments becoming i>ruinose. 



12. SYMPETRUM RUBICUNDULUM (Say). 



A single pair secured; no others seen; easily distinguished even at a dis- 

 tance by its brilliant red color. 



13. ENALLAGMA SIGNATUM (Hagen). 



Quite connnon flying about the floating alg;p. 



14. ENALLAGMA CARUNCULATUM Morse. 



Fairly common, but not as plentiful as E. cbrhiin and E. hagcni. 



15. ENALLAGMA EBRIUM (Hagen). 



Both sexes very common in the grass along shore. 



16. ENALLAGMA HAGENI (Walsh). 



Most conuuon of all the damselflies; both sexes found everywhere in the 

 grass and weeds along shore. 



17. ENALLAGMA ANTENNATUM (Say). 



Rare, only a few seen ; found on rushes over the water. 



18. ISCHNURA VERTICALIS (Say). 



Quite common in company with Enallagina hugenl ; both sexes secured. 



19. LESTES INEQUALIS Walsh. 



Rare, only a single female secured. 



20. LESTES VIGILAX Hagen. 



A little more numerous than L. inequalls; mostly males. 



III. BEAVER LAKE, ST. PAUL, MINNESOTA. .JULY 10. 



Nearly east from St. Paul, a small lake with a portion of the banks 

 high and sandy and a portion low and swampy, evervAvhere covered 

 with a dense growth of vegetation, underbrush, weeds, and grass. 

 The two dragonflies wdiich were most abundant were found on the 

 high sandy banks, while the damselflies were captured in the low and 

 wet places. 



1. LIBELLULA EXUSTA Say. 



Abundant everywhere, most common with quadrimaculata in the under- 

 growth close to the shore. When it alights it squats like a Goiiiplnis 

 on the rocks, stumps, and even on the ground. It is gregarious, as 

 many as fifteen or twenty alighting on the same s]:)ot ; it is also inquis- 

 itive and many were caught that actually alighted inside the net as 

 it was being carried. The males are predominant and are all pruinose 

 thus early, even the two antehumeral stripes showing clear white. 



2. LIBELLULA QUADRIMACULATA Linnaeus. 



Everywhere in company with the i)receding; when it alights it does not 

 squat but perches on a twig, holding its body horizontal even if the 

 twig is vertical. It is gregarious, like the preceding species, from 



