r.PHKMKRID.E. BAETIS. 65 



Sp. 8. lateralis. Plcea, thorace macula aurantiacu, ahdomine ferriigineo latmbus 

 paUidix, alis hyalinis, nervuris 3-bus costalihus carneis. (Exp. Alar, 8 — 9 lin. ; 

 Long. corp. 3|— 3f lin.; 1. set. 7 lin.) 



Ba. phaeopa. Steph. Catal. 306. N'o. 3394. — Ba. lateralis. Curtis, Phil. 

 Mag. 1834. 



" Piceous, shining, an orange spot before the wings ; abdomen dull ferrugi- 

 nous, the sides paler, with the spiracles piceous; filaments very long; 

 wings with the three costal nervures rosy or ferruginous ; legs lurid, 

 excepting the anterior, which are ochreous at the base." — Curtis, I. c 



Taken, in June, within the metropolitan district. 



Sp. 9. obscura. Piceo-rufa, abdomine palUdiore, setis hiridis fusco annulatis, 

 alis hyalinis costa subochracea. (Exp. Alar. 7^ lin. ; Long. corp. 3§ lin. ; 

 l.set. 6 lin.) 



Ba. obscura. Steph. Catal. 306. No. 3395. 



Dull pitchy-red : abdomen paler, its filaments lurid, long, the joints tipped 

 with fuscous ; legs pale lurid ; wings hyaline, costa somewhat ochreous, 

 the nervures brownish. 



Found at Hertford, &c. in June and July. 



Sp. 1 0. carnea. Incarnaia, abdomine saturatiore, setis immaculatis, alis elon- 

 gatis, hyalinis, costa suhrosea, nervuris svbbrunneis. (Exp. Alar. 8§ lin. ; 

 Long. corp. 3^ lin. ; 1. set. 64 lin.) 



Ba. carnea. Curtis, Phil. Mag. 1834. — Steph. Nomen. 2d edit. Appendix. 



'^Ochreous, with a pink tinge; abdomen darker ; filaments twice as long as 

 the insect, pale, unspotted ; wings elongated, with the costa slightly tinged, 

 nervures reddish-brown." — Curtis, I. c. 



Also found within the metropolitan district, in June and July. 



B. Wings faintly reticulated. 



Sp. 11. striata. Fusca, abdomine albo maris pellucido,_fce?nintE opaco rufescente, 

 alis hyalinis, nervuris subfuscis. (Exp. Alar. 4 lin. ; Long. corp. 3 lin.; 

 1. set. 5 lin.) 



Eph. striata. Linne. — Ba. striata. Steph. Catal. 306. No. 3393. 



Fuscous : abdomen white, pellucid in the male, opaque and somewhat reddish 

 in the female ; filaments short, immaculate ; legs lurid ; wings hyaline, 

 longitudinal nervures rather brownish. 



Found occasionally within the metropolitan district, in June. 



Sp. 12. bioculata. Ochraceo-lutea, abdominis medio albo diaphano, apice sub- 

 fusco, pedibus niveis, setis longioribus, albis, fusco punctatis. (EXp. Alar. 6|— 

 7^ lin.; Long. corp. 34 lin. ; 1. set. 3 lin.) 



Mandtbulata, Vol. VI., 15th June, 1836. i 



