ISCHNOGASTEB. 379 



663. Ischnogaster scitula, u. sp. 



5 . Head, thorax, and abdomen with a fine, very short, soft pu- 

 bescence, noticeable on the vertex and front of the head, the sides 

 of the median segment, and on the 2nd and following segments of 

 the abdomen; head, pronotum, mesonotum, scutellum, and post- 

 scutellum coarsely and closely punctured, remainder of the body 

 smooth ; median segment convex posteriorly, \\ ith a distinct 

 medially-impressed line. Black, shining, the pubescence silvery, 

 a small spot on the clypeus, a line on the posterior margin of the 

 pronotum in the middle, a small spot on the mesosternum, and the 

 base of the 3rd abdominal segment above (generally hidden) 

 yellow ; the joints of the legs and the petiole of the abdomen darlc 

 rufo-fuscous ; wings fusco-hyaline and iridescent. 



Hah. Rangit Valley, Sikhim ; Margherita, Assam (Doherty). 

 2 . Length 16-17 ; e.vj}. 30-33 mm, 



66-1. Ischnogaster rufomaculata, Binffh. Jour. Bomb. N. If. Sac. viii, 

 1893, p. 385, 5 . 



5 <S . Closely allied to and resembling /. micans and /. fraterna 

 (ante) : differs in the clypeus being longer and much narrower and 

 having a medial vertical carina at apex ; the median segment is 

 broader, less steep, and furnished with a small tooth on each side 

 of the apex. The markings on the head and thorax are similar 

 to those on the head and thorax of /. micniis, but are red not 

 yellow in all the specimens I have seen ; \\\\\\e the markings on 

 the abdomen are precisely similar to those of I. micans and like 

 them bright yellow. 



Hah. Tenasserim. $ S • Length 19 ; exp. 32 mm. 



665. Ischnogaster nigrifrons, Smith, Jour. Linn. Soc. 1858, p. 113, 5. 



2 . Head, pro- and mesonotum, and scutellum closely punctured 

 and finely granular ; postscutellum and abdomen smooth, shining ; 

 median segment with a distinct but narrow medial vertical furrou', 

 the sides posteriorly on each side of tlie furrow very finely obliquely 

 striate ; clypeus pentagonal, the apex produced and narrowed into 

 a tooth. l3ark ferruginous brown, the front and clypeus with 

 rich golden pile ; the base of the mandibles, the scape of the 

 antennae in front, the posterior margin of the pronotum, an 



oblique spot on each side of the 

 mesonotum anteriorly, a large square 

 spot at its apex (absent in the type 

 specimen), a round spot at each 

 lateral angle of the scutellum, the 

 postscutellum, a largish spot on each 

 side at the apex of the median seg- 

 ment, two spots one above the other 

 Fig. WZ.—Ischnogaster nigri- on the mesopleura), another at the 

 frons, 2- 3. baseof the metapleune, two contiguous 



lines at the base of the node of the 

 petiole beneath, the lateral margins of the 2ud abdominal seg- 



