10 



fascia. The spot at the front of the parajisides is sometimes 

 faint or absent. No dark and metallic area on the mesonotnni 

 in front. All the coxae pale. Antennae of female with first 

 fnnicle joint very long, about fonr times as long as wide, second 

 much shorter, about two-thirds as long as the first, and sul> 

 equal to the third. Antenna of male with the usual sexual dif- 

 ferences, the scape greatly dilated, the first funicle joint much 

 longer than is usual in this sex, very similar to that of the fe- 

 male, being slender and elongate, and very much longer than 

 the second, the latter and the two following not differing much 

 in length, but the second is much slenderer, the third and fourth 

 being subelliptic. 



Fourth joint of front tarsi in the uuile much widened, black 

 and clothed with black hairs. Length .f^ — 1.2.5 mm. 



This is a very distinct species, the female beinc distinoniished 

 from that of 0. hcatus by the absence of the dark metallic areas 

 on the front ]>art of the mesonotum. The male differs greatly 

 from 0. liolorltloriis and other species, in the long first funicle 

 joint of the antennae and has the apical joint of the front tarsi 

 more highly modified. 



Hab. Amboina (No. 445) ; host as in the preceding. 

 (3) Ootetrastichns mmri sp. nov. 



Yellow (or probably greenish in life) becoming more sordid 

 after being mounted in balsam, and the head more reddish. 

 Conspicuous black thoracic marks are placed at the front of 

 the mesonotum, the hind angles of the pronotum, the anterior 

 angles of the parapsides, on the axillae, and between these and 

 the tegulae, as in 0. heatus. There are also lateral abdominal 

 spots as in that species. 



The metathorax (post-scutellum) and most of the propodeum, 

 including the middle and sides, are dark, as also are the hind 

 coxae and a large part of the meso])l('ura. All the dark mark- 

 ings are of a metallic green color in certain lights. The color 

 of the male is in general like that of the female, but the black 

 markings near the apex of the abdomen are more developed and 

 appear to fcn-m a dark band. Antenna of the female nearly 

 similar to that of 0. heatus; in the male the scape is ovate, 



