View Species of Di^loptera^ lOi 



PoLisTEs, Latr. 

 Polistes tristis, sp. n. 



Kiger, fusco-ferrugineo variegatus, abdomine nigro ; alis leviter 

 iufuscatis, cellula radiali fusca. 



? . Black ; scape entirely and flagellum partially beneath 

 fusco-ferruginous ; mandibles,, clypeus^ cheeks, space behind 

 the eyes, pronotum, scutellum, postscntellum, two longitu- 

 dinal lines on median segment, the legs (with the exception 

 of the coxae and femora above) fusco-ferruginous. Two 

 small marks at extreme apex of median segment and on apex 

 of first abdominal tergite laterally pale yellow. Wings 

 fusco-hyaline, distinctly golden along the costal area, radial 

 cell fuscous. Clypeus pentagonal, gradually widening from 

 base, widest part at base of mandibles, produced to a point 

 at apex. Abdomen normal. Clypeus and thorax finely 

 punctured, median segment coarsely transversely striate. 

 The whole insect covered with a short thick silver pubescence. 



Length 14 mm. 



3 ?. 



Hab. Mombasa, E. Africa {A. J. Cholmeley). 



Quite distinct from any known species in the almost 

 totally black abdomen. Possibly the two yellow marks on 

 the first abdominal tergite may be the remains of a yellow 

 fascia ; in one specimen there is no trace whatever of the 

 yellow marks. 



Polistes variabilis regince, var. nov. 



Ferrugineus, flavo variegatus ; pedibus uziicoloribus. 



$ . Pale ferruginous ; pronotum along the front and hind 

 margin, narrow transverse lines on the base of scutellum and 

 postscutellum, a small ovoid spot on mesopleurae, and two 

 broad longitudinal marks on the posterior face of the median 

 segment pale testaceous. First abdominal segment (except 

 for small ferruginous mark on tergite) pale yellow ; abdo- 

 minal segment 2 with narrow transverse apical band, abdo- 

 minal segments 3, 4, 5 with broad transverse apical bands 

 pale yellow. Legs entirely pale ferruginous. The whole 

 insect densely covered with a short golden pubescence- 

 Wings fusco-hyaline, slightly golden along the costa. 



Length 11 mm. 



7 ?. 



Hab. Cooktown, N. Queensland (Z>. Le Souef), 



