806 MR. E. A. ELLIOTT ON THE 



together. Pronotum elongate, shining, finely punctate, posterior 

 margin rugose. Mesonotum coaxsely transrugose ; scutellum 

 with central lobe finely punctate, with large marginal punctures, 

 separated by rows of small punctures from the lateral lobes, 

 which are alutaceous. Mesopleurae finely alutaceous ; meta- 

 pleuree reticulate rugose, the impressed part alutaceous. Median 

 segment finely punctate with difl^use larger punctures, and with 

 a broad crenulated sulcus on anterior margin. Petiole very 

 slender, finely trans-striate, much shorter than rest of abdomen, 

 which is coi'iaceous. Tevebra little shorter than body, spicula 

 red-broAvn, sheaths black. Hind legs with coxse densely trans- 

 rugose ; femora finely alutaceous, tridentate : metatarsus partly 

 and second tarsal joint entirely white pubescent beneath. 



Black ; head except apices of mandibles and occiput, four 

 basal antennal joints, apex of petiole, basal half of third segment, 

 apex of hind femora, the tibise and tarsi yellow or red ; posterior 

 coxa and femoi-a brown. Wings whitish, stigma dark bordered, 

 nervures pale yellow. 



Length 13 mm. ; terebra 12 mm. 



Habitat: Mundame, Johann Albrechtshohe, German East 

 Africa. Conradt, 1906. 



7. TBRTiANUS Morley. 



Diastephanus tertimius Morley, p. 108, 5 . 



5 . Head finely reticulate throughout ; posterior tubercles 

 and vertical carina small ; cheeks much longer than scape ; 

 posterior margin of head simple. Second and third flagellar 

 joints of equal length and about half as long again as first. Neck 

 longitudinally sulcate, laterally obliquely carinate ; semiannular 

 microscopically sculptured and dull, without any smooth posterior 

 margin. (Mesonotum destroyed by pin.) Scutellum dull and 

 difii"usely punctate. Mesosternum shining, finely alutaceous. 

 Mesopleurse alutaceous and sparsely punctate; metapleura^ fiuely 

 transcarinate, confluent with median segment, which is finely 

 reticulate and sparsely punctate. Petiole transaciculate, shorter 

 than rest of abdomen, which is dull. Terebra rather shorter than 

 body, sheaths black. Hind legs with the coxae narrow, dull, and 

 apically transaciculate ; femora dull, tridentate ; tibiee longer than 

 femora, constricted to middle. 



Bla.ck ; head, base of antennae, prothorax, apex of petiole, base 

 of second segment, basal two-thirds of third, and the legs red ; 

 base of hind femora and a mark inside apical third of hind tibiae 

 black. Wings hyaline; stigma lanceolate, centrally translucent ; 

 nervures brown. 



Length 12 mm.; abdomen 7 mm.; petiole 3 mm.; terebra 

 10| mm. 



Habitat: Lesapi River, Masbonaland. Nov. 1897; Guy 

 Marshall, 



