150 ENTOMOLOGICAL NEWS [April, 'll 



the latter in the hind wing are of about the same number. 

 There are five or six cross veins behind the stigma, with no 

 brace vein, nor any apparent furcation of vein Ri at its inner 

 end. Quadrangle and sub-quadrangle of the hind wing are 

 without cross veins, and the wing ceases to be petiolate (i. e., 

 the anal vein separates itself from the anal margin) at the 

 third cross vein before the sub-quadrangle. 



Bayadera indica (Plate V, figs. 4-7.) Hagen, C. R., Soc. Ent. 

 Belg., Vol. 23, p. Ixvi, 1880, "Anisopleura comes?" 



M. C. Z., No. 300, "India, Carleton." 



The nymph measures in length 22 mm., abdomen 12 mm., hind fe- 

 mur 5.5 mm., width of head 5.5 mm., of abdomen 4 mm., gills 6 mm. 



Body rather stout, moderately depressed. Head widest across the 

 eyes, the hind angles rather large, well rounded, scurfy hairy, and be- 

 tween them there is a strong concavity of the hind margin. Antennae 

 7-jointed : ratio of length of segments from base outwards is as i : 

 1.5 :2.2 :i.s :i.2 :i :.J. Frons slightly convex, covered with prickly granu- 

 lations, its front border, and likewise that of the labium somewhat 

 denticulate. Mandibles obscurely biramous, the outer branch a broad 

 lateral prominence armed externally with four prominent sharp and 

 strong, anteriorly directed teeth. Labium short and broad, the hinge 

 reaching posteriorly to the middle of the prothorax. Lateral borders 

 of the mentum serrate in the middle, the median lobe well rounded, 

 with a narrow, closed median cleft : no raptorial setae : lateral lobes 

 short and narrow, with finely denticulate inner margin that ends in a 

 truncate prominence scarcely forming an end hook, and above which 

 are two sharp incurved hooks on the distal margin, the lower one the 

 larger. Movable hook stout, arcuate. 



Prothorax almost as wide as the head, the lateral margins of its 

 dorsal shield spinous. Legs short and thinly hairy. Tarsi 3,-3,-3- 

 jointed, with a minute plantula between the claws. Wing cases ex- 

 tend posteriorly to the apex of the 5th abdominal segment. 



Abdomen stout, with conspicuous lateral gills on segments 2-8, one 

 pair on each segment, simple, filiform-conic, constricted at the base, 

 each except the 8th longer than the width of its segment. Segment 

 10 dorsally excavate behind. Caudal gills three, thick, inflated at base 

 and scarcely triquetral, scantily pubescent, contracted at base, widest 

 before the middle, and suddenly constricted, and tapering in their 

 apical fourth to an acute point. 



An examination of fore and hind wing of one specimen re- 



