Odonata &c. from Upper Burma. 113 



abdomen strongly carinated ; legs black, upper anal append- 

 ages nearly straight, slender, slightly pointed at the tips, 

 rather longer than the ninth segment, lower appendage some- 

 what shorter, spatulate, rather broad, upcurved, and obtusely 

 rounded at the extremity. Wings hyaline, with black 

 nervures ; costal nervures inclining to yellowish in front ; 

 fore wings very slightly marked with rufous-brown at the 

 extreme base, with 14 or 15 antenodal and 9 to 11 postnodal 

 cross-nervures, the first two or three postnodals not con- 

 tinuous ; pterostigma testaceous yellow, between black 

 nervures, nodal and subnodal nervures considerably waved, 

 triangle traversed, followed by three rows of cells increasing, 

 one supra-triangular nervure ; subtriangular space consisting 

 of 3 or 4 cells : hind wings rufous brown at the base, nearly 

 as far as the cross-nervure in the lower basal cell ; mem- 

 branule small, blackish ; triangle free, no supra-triangular 

 nervures. 



Female testaceous brown ; .thorax slightly aeneous on the 

 sides, with two broad oblique yellowish-white stripes ; a 

 nearly square pale space occupying the front two-thirds of its 

 surface above, bordered with black at the sides and behind ; 

 abdomen with most of the segments to the seventh with long; 

 yellowish lateral stripes on the sides beneath ; eighth segment 

 perfoliate. 



Described from three males and one female. 

 This species belongs to the group of 0. glauca and luzonica, 

 Brauer, in which the triangle of the hind wings is not 

 traversed by a nervure. 



The species of Orthetrum are numerous and closely allied, 

 and, as a rule, do not vary much. It often happens that 

 very familiar-looking species of this group from a fresh 

 locality prove to be new as soon as they are carefully 

 examined. 



Agrionidae. 



A GRIONINJ2. 



Neurobasis chinensis. 

 Libellula chinensis, Linn. Syst. Nat. (ed. x.) i. p. 545. n. 15 (1758). 

 Many specimens of this abundant East-Indian species. 



Pseudophaza Masoni. 

 Euphcra Masoni, Selys, Bull. Acad. Belg. (2) xlvii. p. 377 (1879). 

 Two male specimens. 

 Ann. & Mag. N. Hist. Ser. 6. Vol. xiv. 8 



