72 MANDIBULATA. NEUROPTERA. 



Forest not uncommonly ; and occasionally within the metropolitan 

 district. 



Sp. 2. xanthopterum. Rubra, macula, veriicis lined dorsali thoracis abdomineque 

 supra, segmenlo antepenultinio excepto, viridi-aneis, alisjlavescentibus. (Long. 

 Corp. 1 unc. 3§ lin.; Exp. Alar. 1 unc. 7 lin.) 



Ag. xanthopterum. Steph. Nomen. 2d edit. col. 113. 



Head pale red, with a black transverse streak on the labrum and another on 

 the clypeus, crown with a large rhombic blackish-green-brassy patch ; 

 thorax bright pale red, with a narrow dorsal brassy-green streak ; abdomen 

 pale red, the basal segment with an irregular blackish streak above, the 

 five following brassy-green above, the next wholly red, the remainder brassy 

 above; legs red, with a brassy streak on the anterior edge of the four 

 anterior femora and tibise; wings pale yellowish, with a fuscescent stigma. 



Taken near London, in June. 



Sp. 3. elegans. Airo-aeneum, puncto rotunda post oculum utrmnque, lined longi- 

 tudinali utrinque in thorace cceruleis, viridibus autjlavidis, collaris margine 

 postico in medio cornuto, segmento antepenultimo cceruleo. (Long. corp. 1 unc. 

 3—4 lin. j Exp. Alar. 1 unc. 5—6^ lin.) 



Ag. elegans. Van Linden. — Ag. zonata. Steph. Catal. 307. No. 3411. 



Brassy-black, bluish beneath; on each side the head, behind "the eyes, above, 

 is a round blue or yellowish spot; thorax with a longitudinal blue line on 

 each side ; abdomen with the antepenultimate segment blue, the penulti- 

 mate with two elevated tubercles ; legs pale, black above ; wings white ; 

 stigma anteriorly pale, posteriorly black. Female with the abdomen 

 stouter, fuscescent, the antepenultimate segment less evidently blue, or 

 with two dots only of that colour, and its terminal segment destitute of the 

 tubercles; wings with a white or bluish stigma; collar, in both sexes, with 

 the hinder margin reflexed, and armed with a short horn in the middle. 



In some examples the thorax is pale reddish or yellowish, with a narrow 

 dorsal streak of brassy black. 

 Abundant, during June and July, within the metropolitan 



district. 



Sp. 4. ezonatum. Fusco-aneum, subtus Jiavidum, thoracis lined utrinque longi- 

 tudinali lateribusque cceruleis, collaris margine postieo rotundaio. (Long, 

 corp. 1 unc. 2 lin. ; Exp. Alar. 1 unc. 6 lin.) 



Ag. ezonata. Steph. Catal. 307. No. 3412. 



Brown-brassy, yellowish beneath; labrum with a transverse black streak; 

 collar rounded behind ; thorax with a slender blue line on each side, and 

 the sides themselves also blue, gradually shaded into yellowish ; abdomen 

 with the base and sides bluish, beneath yellowish; the basal segments 



