456 JOURNAL, BOMBAY NATURAL HISTORY SOCIETY^ Vol. XL 



2550a. Plecoptera trimaculata, n. sp. 



Dark gray ; head and collar bright rufous. Forewing slightly irro- 

 rated with black ; an obliquely-waved antemedial rufous line arising 

 from a dark rufous spot on costa ; reniform rufous, conjoined to a 

 patch on costa ; a minutely-waved postmedial line touching lower end 

 of reniform and sharply dent back to it below costa ; a patch on costa 

 before apex and some pale specks ; traces of a sinuous submarginal 

 line. Underside of forewing with the costa ochreous with small black 

 medial spots ; hindwing ochreous, irrorated with black; a discoidalspot; 

 both wings with postmedial series of points, indistinct on forewing, • 



Habitat. — Khasis. Exp. 34 mm. Type. — In British Museum. 



2603a. Thermesia nigripalpis, n. sp. 



Palpi with the third joint longer than the second and broadly 

 fringed with hair above. 9 . Olive yellow-brown ; head black ; fore- 

 and mid-legs black in front. Forewing very slightly clouded with 

 fuscous ; the costa fulvous-yellow ; an indistinct curved sinuous ante- 

 medial line with black specks on it in and below cell ; an indistinct pale 

 reniform stigma ; both wings with nearly straight oblique postmedial 

 line defined on outer side by fulvous-yellow ; an indistinct crenulate 

 submarginal line ; a marginal series of fuscous specks and fulvous- 

 yellow line at base of cilia. Underside tinged and irrorated with 

 fuscous ; both wings with discoidal black lunules, curved postmedial 

 line and fine marginal line. 



Habitat. — Khasis. Exp. 46 mm. Type. — In British Museum. 



FOCILLIN.E. 



2718a. Mecodina obscuratas, Swinh., A.M.N.H. (6), xix, p. 168. 



$. Head, thorax, and abdomen pale-brown, slightly tinged with 

 fuscous. Forewing pale brown, slightly tinged with fuscous ; a black 

 speck on discocellulars ; an obscure fuscous band from lower angle 



c ell to inner margin ; an indistinct postmedial irregularly dentate 

 line bent inwards to costa ; a diffused submarginal fuscous band ; a 

 marginal series of black specks. Hindwing with fuscous antemedial 

 shade, postmedial line and diffused submarginal band; a marginal 

 series of black specks. 



$ . Darker and more suffused with fuscous. 



Habitat,-— Jaintia Hills, Assam. Exp. 64 mm. 



