of the Subfamily ^schnina. 421 



in examples not prepared ; but at the same tima they probably 

 fall far short of the brilliancy in the living insect. 



^schna minuscula^ sp. n. 



(J . Face and top of the front yellow, the latter with a 

 black T-spot, the top of which is broad and crescentic ; the 

 tail somewhat conical, connected with the top only at a point ; 

 a fringe of black hairs on either side ; vesicle yellow above, 

 in front with a narrow black line, which descends along the 

 margins of the eyes to the base of the front; eyes connected 

 in a rather short space ; occiput yellow ; back of head 

 blackish. Thorax brown, clothed with fine concolorous 

 pilosity, and darker dorsal crest and antealar sinus ; each side 

 above with a straight, rather narrow, greenish-yellow ante- 

 humeral band extending into the sinus, but scarcely reaching 

 the anterior margin ; sides with two broad oblique greenish- 

 yellow bands, one under each wing, not reaching the legs ; 

 interalar space and wing-roots spotted with yellow. Legs 

 black; coxffi, trochanters, and femora (except at apex) 

 reddish brown. Abdomen somewhat slender, inflated at 

 base and constricted afterwards ; oreilettes small, prominent, 

 triangular ; colour brown, with black sutures ; a broad yellow 

 band on the sides of segments 1 and 2, an elongate cuneate 

 dorsal yellow spot on 2 ; lateral spots on the base of segments 

 4 to 8 ; the apex becomes gradually nearly black, with a 

 large yellow spot above on each side of the apex of segments 

 4 to 10, vague on 4 to 6, afterwards very distinct, the spots 

 on 10 being nearly quadrate, with a black margin anteriorly 

 and posteriorly, and separated by a longitudinal black band 

 in which is the dorsal carina, slightly elevated near its base 

 (with a deep fovea on either side), but not forming a tooth if 

 viewed laterally. Superior appendages (6 millim.) about as 

 long as the ninth and tenth segments united, blackish brown, 

 straight, contiguous, narrowest at the base, the inner edge 

 gradually widening to end of inferior appendage and continued 

 as a gentle curve almost from base to apex, which latter is 

 about the same width as base, with the inner margin gently 

 curved, the outer acute and slightly turned outward ; above 

 there is a slight median carina from base to apex. Inferior 

 appendage more than one half shorter, elongately triangular, 

 the apex notched ; colour above reddish yellow with black 

 margins. 



Wings hyaline, very slightly fumose ; pterostigma (3 

 millim.) narrow, dark brown, surmounting 2^ cellules ; mem- 

 hranule conspicuous, whitish above, blackish below j neura- 



