16 THE IMMATURE STATE OF THE ODONATA. 



tliat nymphaa very similar to those of A. Junius should belong to the gi- 

 gantic and very different A. validus. 



A specimen in alcohol from New Mexico, Dr. Yarrow, differs by a shorter 

 and broader mask. Perhaps it belongs to a new, still unknown species. 



A very young specimen in alcohol from Key West Island, Florida, Mr. 

 Garman, differs by a large head and very long legs. Perhaps it belongs to 

 A. longipes. 



5. ANAX JULIUS. 



Brauer, Voyage of the " Novara," p. 63. 



Seven nympha?, male and female, in alcohol and dry. Length, from 28 

 to 50 mm ; breadth, from 6 to 10 mm. Coll. Mus. Comp. Zoul. Locality, 

 Kanagava, Japan. 



Very similar to the other forms of Anax. Processes as in A. Jmiius. 

 Lateral appendages as in A. formosus. Male projection short, blunt ; indica- 

 tion of notch at tip. In full-grown female, wing cases reaching segment 

 five ; palpus somewhat larger at tip, straighter, superior angle very little 

 rounded ; female valve, two thirds of ninth segment. 



The nymphaj were received, together with the imago. No other species 

 is known from Japan. 



6. ANAX GUTTATUS. 



Burm. Hdh. T. II. p. 340. 



Twelve nymphae, male and female, nearly full-grown, and j'oung, in 

 alcohol. Length, 60 to 40 mm. ; breadth, 6 to 10 mm. Coll. Mus. Comp. 

 Zoi)l. Locality, Ebon, Marshall Island, Pacific Ocean, Rev. B. G. Snow. 



Longer and less broad than the other species. Mask reaching the base 

 of hind legs, narrow, more than four times longer than the breadth of base, 

 gradually enlarged forward; front margin rounded, cleft; palpus narrowed 

 to tip, superior angle obtuse, rounded ; lower angle forming a very strong 

 tooth ; processes unequal, upper part blunt, lower part smaller, angular 

 behind ; enclosing a very obtuse angle, with a smaller median notch. Legs 

 slender, long. Inferior appendages longer than the two last segments ; 

 lateral appendages sharj^ly pointed ; male projection narrow at tip. cut 

 square ; female valve small, half as long as the segment. 



The nymphs were received, together with the imago. The supposed 

 identity is probable. 



