AUSTRALIAN HYMENOPTEBA CH ALGID OWE A, IV.—GIBAULT. 233 



7. SELITRICHODELLA AURIVENTRIS new species. 



Female: — Length, 1.10 mm. 



Same as sulfur eiventris but the whole head is golden yellow, the abdomen longer than the 

 thorax, the funicle joints longer, thus 3 is nearly twice longer than wide (plainly not so in the 

 other species) and on the propodeum the carina along the mesal side of the spiracle is crescentic, 

 joining the opposite carina at each end while in the other species it is not regularly curved and 

 diverges more or less cephalad, the opposite carina curving correspondingly with it. And the 

 mandibles are distinctly tridentate. Propodeum with a median carina. 



From one female captured by sweeping along edge of jungle, May, 1913 (A. P. Dodd). 



Habitat: Kuranda, Queensland. 



Type: No. Hy 2582, Queensland Museum, Brisbane, the specimen on a slide. 



Genus SELITEICHODES Girault. 

 The seutellum bears four sulci. 



1. SELITRICHODES FASCIATIVENTRIS Girault. 



Length, 1.20 mm. The two black abdominal stripes are somewhat proximad of middle. 

 A more or less obscure dusky spot near the tegula. Eunicle joints subequal, subquadrate; club 

 slightly longer than the funicle. The types were reared from galls on Eucalyptus and are four 

 females on a slide. The seutellum bears four sulci. Types re-examined. 



2. SELITRICHODES MORUM (Girault). 



Eemoved from Tetrastichodes which see. Type re-examined. Funicle 2 distinctly shorter 

 than 3 ; stigmal vein over half the length of the marginal. 



3. SELITRICHODES FLAVISCUTELLUM (Girault). 

 Eemoved from Syntomospltyrum. Type re-examined; it consists of the female taken at 

 Ayr, Queensland. The ring-joints have not been verified. 



4. SELITRICHODES DARWINI new species. 



Female: — Length, 0.80 mm. 



Black, the wings hyaline, the head suffused with yellow, the cephalic femora, the 

 trochanters, knees, tibiae, tarsi and antenna? white. Mandibles distinctly tridentate. Scutum 

 very long. Pedicel somewhat longer than funicle 1 which is a little longer than wide, much 

 larger than either of the other funicle joints which are small and narrow, joint 2 a little wider 

 than long, 3 subquadrate, not quite half the length of 1 and distinctly narrower; club longer 

 than the funicle, without a distinct terminal seta. Scape slightly compressed. Discal cilia of 

 fore wing fine and dense, the blade large, obtusely rounded at apex. Tarsal joints short. 



Differs from morum in that the stigmal vein is short (very long in morum), the body 

 more robust and the color different. 



From one female taken from window of a granary, October 6, 1911. 



Habitat: Roma, Queensland. 



Type: No. Hy SoS.J, Queensland Museum, Brisbane, the female on a slide. 



5. SELITRICHODES ROTUNDIVENTRIS new species. 



Female: — Length, 0.55 mm. Short, robust, the abdomen nearly round. 



Black or brown-black, the head, legs, antenna), lateral margins of scutum, mesopleura, 

 seutellum and (less distinctly) the base of abdomen across from margin to margin, bright lemon 

 yellow. Hind coxa blackish, the hind femur a little dusky laterad at middle, the legs pallid. 



