30 Lake Maxinkuckee, Physical and Biological Survey 



The Back Swimmers, Notonectidse, are represented by Noto- 

 necta undulata Say, obtained November 25, 1904, in the outlet of 

 Lost Lake, and N. irrorata Uhl., but we have no special notes. 



The Water Scorpion, Ranatra fnsca P. Beauvois, attracted at- 

 tention by its commonness, and by the fact that it was usually in 

 evidence while one was collecting minnows and darters out of the 

 seine. The queer egg cases, laid in rows in bits of floating sticks 

 or rushes, with the two long white seta^ projecting, had aroused 

 considerable curiosity which was not satisfied until a Ranatra was 

 seen ovipositing in Lake Phalen, Minnesota, in 1907. 



The Giant Water-bug or "Electric-light Bug" was occasionally 

 seen. On December 7, 1906, one was observed creeping along on 

 the under side of the clear ice, and on October 1, 1904, one was 

 noted in the water near the Monninger cottage. Its smaller rela- 

 tive, Belostoma flumineum Say, was common in the lake and at- 

 tracted attention through the habit of the male of carrying the 

 eggs about on his back. It was obtained in various parts of the 

 lake, in Aubeenaubee Bay, Aubeenaubee Creek, in Culver Inlet, 

 and Lost Lake. On August 6, 1906, the young were observed 

 hatching, the larvse showing red eyes. These bugs as found in 

 the lake are generally infested, sometimes pretty badly, with sac- 

 like red objects attached to them, the young of one of the water- 

 mites. On August 1, 1906, one was found in Lost Lake that had 

 just moulted. 



Peculiar toad-shaped bugs, Gelostocoris oculatus, were abundant 

 along the sandy shore on the east side of the lake. Some were 

 collected August 6, 1906. 



The common water-strider Gerris {Hygrotrechiis) remigis Say, 

 was common in the creek in Overmeyer's woods and in various 

 pools in the region about the lake. 



The thread-legged bugs were represented by the long legged 

 Emesa, Emesa longipes, which was very abundant in the Arling- 

 ton waiting-room on one occasion, the insects looking a great deal 

 like walking-sticks and presenting an odd appearance when in 

 flight. 



Individually by far the most abundant bug noted in the region 

 was the Lace Bug, Corythucha ciliata Say, which was almost al- 

 ways present — both old and young — on the underside of the syca- 

 more leaves. They ate the green color cells from the leaves, leav- 

 ing them an unattractive sickly white in color. Under magnifica- 

 tion these are the most attractive and dainty of the insects, the 

 whole creature resembling a frosty lace. 



