180 ME. E. M'LACHLAN ON THE NEUEOPTEEA OP 



years previously. Eambur applied tlae name arteriosa as a doubt- 

 ful synonym of hcdmatina, which latter seems to have been a 

 somewhat collective name, but not including the species under 

 consideration. 



The adult $ (so determined by De Selys) bears but little re- 

 semblance to the male. I am not aware that this sex has been 

 described. The front is pale olivaceous ; the side lobes of the 

 labium rather distinctly margined with blackish on their conti- 

 guous edges. Thorax olivaceous, with an appearance of darker 

 humeral lines, each side with three distinct black lines ; pectus 

 blackish, with three yellowish spots (as in the c?), somewhat 

 pulverulent. Legs black ; tibise brownish externally ; femora 

 yellowish at the base, this colour more extended internally. 

 Abdomen considerably shorter than in the S (23 mm. as against 

 26 mm.), olivaceous, glaucous pidveruleut beneath, the black 

 lateral markings as in the c5' , but more extended; vulvar scale 

 triangular. "Wings hyaline ; the anterior scarcely tinged with 

 yellow at the extreme base ; two very small yellow spots at the 

 base of the posterior ; pterostigma reddish brown ; neuration 

 brownish black, some of the costal and subcostal nervules paler ; 

 11-12 antecubital nervules in the anterior. 



Ceocothemis EETTHEiEA, Brttlle. (LiheUulaferruginea, Brulle, 

 Hist. Canar. ii. pt. 2, p. 82. — L. ruUcunda, Bory de St. Yincent, 

 Essai, p. 362, nccL.). 



Canaries {Bory de St. Vincent, Well et BertJielot) ; Orotava, 

 T^neriffe, about 1650 feet, December 16th {Eaton). 



Eaton remarks that this handsome insect breeds in the reser- 

 voirs. The c? examples taken by him are very adult, and are 

 slightly larger than those in my collection from various parts of 

 the south of Europe, Africa, India, &c. 



I incline to refer here an immature 5 from near Las Palmas, 

 Grrand Canary, 6th December {Eaton), although De Selys ex- 

 presses himself doubtful ; the pale and dark humeral lines on the 

 thorax of this example are very distinct *. 



* Brull6 says : — " Parmi les Libellules des Canaries se trouvent les deux 

 sexes d'une jolie rari^te de cette espece, dontla collection du Museum renferme 

 plusieurs individus provenant des Tndes Orientales. Elle est d'un jaune roux, 

 les cotds et le dessous de son corselet plus pales, et claaque cot^ du corselet pre- 

 sente une bande brune etendue depuis I'origine de I'aile jusqu'au bord ante- 

 rieur et bordee int^rieurement d'une ligne d'un jaune clair." Probably the 

 same form. 



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