Descriptions of Now Species of Parasitic Hymenoptera. 181 



reticulated ; the spiivacular coarsely, closely, obliquely striated ; the 

 spiracles linear. Post-petiole finely striated in the middle, the sides 

 strongly punctured ; the other segments are closely punctured, 

 pilose ; the gastrocoeli deep, the basal slope closely, regularly 

 striated. Areolet 5-angled, in front one-third of the width behind ; 

 the recurrent nervure is received shortly beyond the middle ; the 

 transverse median shortly behind the transverse basal. Tarsi 

 spinose. 



PlATYLAUUS EllYTHROCEPHALUS, Sp. HOV. 



Eed, the second, third, and fourth abdominal segments black ; 

 the apical half of the fifth and the whole of the sixth and seventh 

 white, the antennas black, the scape red below, the eighth to 

 fifteenth white ; the anterior tibiae and tarsi testaceous in front ; 

 wings hyaline, the stigma and nervures black. J . 



Length 9 mm. 



Cape Colony. Mossel Bay. 



Head closely punctured ; the apex of clypeus black, transverse. 

 Base and apex of mandibles black. Palpi fusco-testaceous. Front 

 deeply excavated. Temples short, oblique. Thorax closely punc- 

 tured ; there is a yellow line on the base of the pronotum, a small 

 yellow mark on the apex of the pronotum, and the tubercles are also 

 yellow. Scutellar keels black. Post-petiole punctured at the base, 

 the apex aciculated ; the sides stoutly, obliquely striated. Gastro- 

 coeli shallow, striated at the base. The second and third segments 

 are closely punctured. 



This does not look like a typical Platylahus ; the undernoted 

 are the structural characters : Scutellum raised, rounded, stoutly 

 keeled laterally to near the apex. Areola horseshoe-shaped, slightly 

 longer than wide. Last abdominal segment (seventh) large, longer 

 than the penultimate ; the ovipositor projecting, as long as the last 

 two segments united. Areolet 5-angled; the disco-cubital nervure 

 broken, transverse basal nervure interstitial. Antennae ringed with 

 white, the basal joints of the fiagellum elongate. 



ERISTICUS, Westm. 

 ? Eristicus tibialis, sp. nov. 

 Black ; the inner orbits broadly below, narrowly above, a curved 

 mark on the sides of the clypeus, palpi, basal half of mandibles, 

 scutellum, a broad line on the pronotum and tegulas, yellow; the 

 abdomen red, the greater part of the four anterior coxse and 

 trochanters yellow, the posterior black, as are also the hind 



