Collection of Odonata from Panama. 363 



Miathyria marcella. 



Libellula marcella, Be Seljs, Ramon de la Sagra, Hist. Cuba, Ins. p. 452 



(1857). 



((J, no. 1.) "A))ex of eye red, with a ]Uir|)le tint, the 

 remainder infuscated ))uri)le. Epicranium metallic purple. 

 Ante- and postcljpeus olivaceous. Labrum fu.scous. Dorsal 

 aspect of mesepisterna and notum bluish black. 



" Tergum of abdomen ochreous. Tergites 1-3 fuscous, 4-9 

 ochreous, edged with black. Median line black, growing 

 gradually broader I'rom base up to the ninth tergite, where 

 the ochreous ground appears only as two lateral spots. Tenth 

 tergite and cercopoda black ; tergites 4-8 with two fuscous 

 marks to\^ards the apex of each tergite, these markings on 

 the ninth becomino; mero-ed into the median line." 



Three male specimens. 



Perithem is do m it ia . 

 Libellula clomifin, Dru. 111. Ex. Ent. ii. pi. xlv. fig. 4 (1773). 



( J , no. 3.) " Apex of eye fuscous; middle third with a 

 faint ])urplish tint horizontall}' ; lower third from the epi- 

 cranial suture downwards, together with the clypeus and 

 labrum, olive-green. E[)icranium yellowish green. 



" Dorsal aspect of mesepisterna and notum dark green^ 

 faintly teneous. 



*' Abdominal tergites olive-green, marked diagonally to- 

 wards the outer edges with fuscous fascia?, bordered laterally 

 with light brown. Edges of tergites ochreous. Cercopoda 

 olive-green." 



Six male specimens. 



Trithemis 2yuUa. 

 Libellula jMlla, Biirm. Handb. Eut. ii. p. 855. n. 41 (1839). 



{($ adult, no. 17.) " Apex of eye rufescent, balance cine- 

 reous. Epicranium, clypeus, and labrum rufescent. Dorsal 

 aspect of mesepisterna bronzy green. Notum dark green. 



" Tergum of abdomen rufescent. Tergites 1-3 greeuisli, 

 4-8 with diagonal luteous markings from outer angle at base 

 of each tergite inclining towards the median line, 9-10 testa- 

 ceous. Cercopoda red." 



( ($ semiadult, no. 4.) " Eyes piceous, with dark crimson 

 apices. E]ticranium, clypeus, and labrum crimson. 



" Dorsal aspect of mc sc))istcrna, notum, and abdominal 

 fcigitcs d;irk crimson. Median line of tergum black. Edges 



