Scuddcr.] 188 



Agrion Maria nov. sp. 



9 Head, light blue ; the vertex, behind the front ocellus, black, 

 enclosing a transverse, light band of irregular border, which fails to 

 reach the border of the eyes or of the ocelli, and is constricted in 

 the middle so as to be nearly resolved into two wedge-shaped spots in 

 reversed positions ; antennae dusky, the anterior half of j&rst joint and 

 basal half of the second pale bluish ; prothorax light blue, a dorsal 

 line, a lateral stripe, and a sublateral apical spot, black ; posterior edge 

 triangularly produced, the apex rounded ; thorax light blue, the dor- 

 sum with a serrated median stripe and a humeral stripe, cleft from the 

 humerus for more than half its length, black ; pleura with a narrow 

 anterior abbreviated black stripe, thickened at the tip, not more than 

 one-third or one-fourth the length of the pleura, approximated and 

 parallel to the humeral stripe and sometimes connected with its pos- 

 terior fork at the apex of the same ; also a narrow median black stripe 

 parallel to the others, triangularly dilated posteriorly at the base, 

 startino- from the base of the posterior wings at the anterior border and 

 falling to reach the mesothoracic stigma, beneath which In assumed 

 continuation of this stripe is a small black spot ; wings hyaline, apical 

 third indistinctly luteous; pterostigma small, rhomboldal, dark red- 

 dish brown ; legs pale with black spines, the femora with a superior 

 blackish-brown vitta, extended on to the anterior surface at the apex; 

 tibiae with an inferior fuscous vitta obsolescent towards the apex; 

 abdomen bronze-black, segments 1-2 with a broad lateral stripe, one 

 with a dorsal central spot, two with a median spot in the form of an (!), 

 3-7 with a narrow basal annulus, and a narrow lateral stripe pale 

 hght blue, that of segments 1-2 more distinct; segment eight, with a 

 very narrow basal annulus and the Inferior surface pale blue ; nine, pale 

 blue with a linear basal annulus, a narrow apical annulus expanded 

 triangularly on the middle of the dorsum, and a dot on either side of the 

 expansion, black; ten, pale blue above, black beneath, posterior margin 

 entire ; appendages black, very short ; superior pair trigonal, laminate, 

 channelled Infcriorly and so minutely bifid at the tip, which is directed 

 posteriorly upwards and slightly outwards, with a tubercle upon the 

 middle superiorly ; inferior pair sub-cylindrical, simple, twice as long as 

 broad, subcultrlfbrm, obtusely carinate beneath ; eleven postcubltals. 



Length, 1.38 inches ; alar expanse, 1.44 inches. 4 9. 



During life the colors of the body are black with a metallic lustre 

 on head and thorax as well as abdomen, and Hght blue, very pale on 

 the abdominal segments, except 1-2. 



It seems to be closely allied to A. exsulans Hagen. _ 



