9' 



tlie tegiilae are probahly always present, black or nearly so. 

 Lep^s entirely pallid, excejit the extreme tips of the tarsi ; apex 

 of the sheath of the ovipositor also dark, i^enration pale. 



Antennae of the female with seven distinct joints, scape, 

 pedicel, three-jointed fnnicle and two-jointed clnb. Between 

 the pedicel and fnnicle there is an appearance of three ring- 

 joints as in 0. Ijcafiis-. the tyjie, and in other species of the genns. 

 First fnnicle joint less elongate than is nsnal in the genns, only 

 abont one and a qnarter or one and a third times the length of 

 the second ; clnb rather longer than two preceding joints together 

 and slightly shorter than the first and second fnnicle joints 

 together. 



Male with the scape greatly dilated, with ronnded sides, 

 ring joints as in the female or even apparently fonr transverse 

 divisions visible; first fnnicle joint elongate, twice as long as 

 wide, bnt slightly shorter than the second, the fonr fnnicle 

 joints not differing mnch in length. The clnb is distinctly 

 three-jointed and is mnch longer than the two preceding joints 

 together, bnt not so long as the three preceding. The male 

 therefore has one distinct clnb-joint and one distinct fnnicle 

 joint more than the female, and apart from the antennal char- 

 acters differs from the latter in having the marginal vein 

 of the front wings mnch thickened or wider. The apical joint 

 of the front tarsi is also widened and black. Length .66 — 1.2 

 mm. 



Hab. Java, Pekalongan, T^o. 280 (Mnir). From eggs of 

 Dclphacid on sngar-cane, either PerhinsieUa sf'ccliwricida or 

 vastatrix. 



(2) Oofetrastirlius tavmlis sp. nov. 



Pallid, flavescent, generally similar to 0. heatus and 0. ho- 

 lochhrus, the pattern of markings in most respects like these. 



Head pale, each ocellns more or less enclosed in a dark ring. 

 Posterior angles of pronotnm, the parapsides and axillae anter- 

 iorly, two spots at the base of the tegnlae, an area on each side 

 of the middle line of the propodenm, black or fnscons. Abdo- 

 men with five distinct lateral spots on each side, a pair to each 

 segment, the basal pair sometimes less evident. In the male the 

 fifth pair of spots are notably enlarged and tend to form a 



