19 14- J N. Banks : Neuropteroid Insects. 355 



Chrysopa alcestris, Bks. 



From Upper Rotimg, 7 January, 1912, 2000 ft. 



Chrysopa virgestcs, Bks. 



From Dibrugarh, N. B. Assam, 17-21 November, 1911. 



Formicaleon bivittatum^ n. sp. 

 (PL XXV, figs. 2, 4.) 



Face pale ; a large dark interantennal band from eye to eye ex- 

 tending above and below antennae, above this is a narrow dark band 

 with a stripe each side behind to the pronotum, and two spots in 

 middle of vertex reaching toward these stripes ; antennae annulate 

 with brown, long and slender ; pronotum longer than broad, with 

 a broad dark stripe on each side, and the posterior corners dark; 

 thorax dark with median pale stripe, extending a little way back 

 on the abdomen, rest of abdomen brownish; pleura with two dark 

 stripes under each fore- wing; legs pale, a dark band at extreme tip 

 of tibia, and tibiae i and 2 with dark spot on outer side near 

 base, legs slender, with long black bristles, spurs long, not much 

 curved, about as long as four joints, last joint much longer than 

 the first one. Wings hyaline ; veins interruptedly dark and pale ; 

 stigma reddish, the forkings of veins near the outer margin and 

 apex of wing are clouded with dark. Hind wings much longer 

 and narrower than fore-wings, sharply acute at tip ; fore-wings 

 very broad at stigma ; five cross-veins before radial sector, about 

 16 branches to radial sector, and with five cross-veins to cubital 

 fork, a line bending up from end of anal and running through 

 middle of cubital area; in hind wings the anal ends before the origin 

 of the cubital fork. The wings are very similar to F. verendus but 

 the pronotum and legs are more slender. 



Expanse 70-80 mm. 



From between Thingannyinaung and Myawadi, h. Burma, 

 24-28 November, 191 1, 900 ft. {F. H. Gravely). 



TRICHOPTERA. 



H Y DROPS Y CHID A E. 



Stenopsyche griseipennis^ McLach. 



One from Siyom River, below Damda, 1300 ft., 31 January, 

 1912. 



Philopotamus sp. 



From Yembung, iioo ft., 17 January, 1912 ; in alcohol, a uni- 

 form dark-winged species. 



