466 CALIFORNIA ACADEMY OF SCIENCES. 



Anax Wahmghami, Diplax illota, Ischniu-a exstriata, 

 I. cervula and Octog-onip/riis sfeciilan's are Pacific Coast 

 species, the last three being known elsewhere from Cal- 

 ifornia only. Argia agrioides and A. vivida also inhabit 

 California and Texas. Eighteen species are thus chiefly 

 Nearctic in distribution, although all are not confined to 

 that province, while some may be entitled to rank as 

 " Sonoran," 



Species of mainly Neotropical distribution, eighteen in 

 number, are Argia citprcva, A. ccnea, Pseitdolcon super- 

 bus; Enallagma ccvcidu, Ischunra J^anibiirii vdiW crcdiila, 

 Tramea oniista, Orthcriiis ferriiginea, Micrathyria didyma, 

 M. Hagenii, M. ceqiialis, Cannacria furcata ; Archilestes 

 grandis, Erythragrion salvuiii; ^Eschna lutcipcunis, ^E. 

 cornigera , Tramea longicauda, Dytheiuis stcrilis, Macro- 

 themis imitaus. Of these, the first three are confined to 

 Mexico, the second group of eight occur in the West 

 Indies and elsewhere, the last five were not hitherto known 

 to exist outside of South America. 



Lastly, Enallagma Eiseni, Macrothemis inequiungius, 

 and Tr it hem is basifusca, all here described as new, are, 

 according to our present knowledge, restricted to Baja 

 California, while Pantala flavescens is almost world-wide 

 in distribution. 



2. Six species (Nos. 3, 9, 11, 29, 32, 33 of the pre- 

 ceding list) from Baja California have been described as 

 new. For a considerable number descriptions have been 

 given which are much fuller than those previously exist- 

 ing. Structural details have been illustrated for 39 of 

 the 40 species, the figures having been made from speci- 

 mens from Baja California, except in the cases of Octo- 

 gomplms spcciilaris and Cannacria furcata. A few species 

 from California, U. S. A., sent with the others, have, for 

 obvious reasons, been noticed, including descriptions and 



