HYMENOPTERA. 17 



Tribe DIPLOPTERA. 



45. PTEROCHILTJS ALBO-FASCIATTJS, Fig. 12. 

 Femina. P. niger, capite thoraceque albo-variegatis; abdominis segmentis albo-marginatis. 



Black; head as wide as the thorax, strongly and closely punctured; the clypeus 

 porrect and rugosely punctate, its anterior margin truncate ; the mandibles tridentate, the 

 teeth obscurely rufo-piceous ; a small subovate white spot above the eyes on the vertex. 

 The prothorax white above ; the mesothorax and scutellum coarsely punctured ; a white 

 line crosses the post-scutellum and curves up towards the insertion of the posterior wings, 

 which are fusco-hyaline and darkest along the foreborder of the anterior pair ; legs black. 

 Abdomen subovate ; the basal segment campanulate and having a broad white fascia on its 

 apical margin, which is slightly notched in the middle ; the second segment has also a broad 

 fascia, which is curved up laterally towards the base of the segment ; the three following 

 segments have each a similar broad white fascia. Female, length 5^ lines. 



Sab. Yangihissar, Eastern Turkestan. Taken in April. 



This is a genus of small extent ; about twenty species are described ; it occurs in Europe, 

 a single species being found in Eussia, another in Germany, and one in Switzerland ; species 

 have been found in Algeria, the Cape of Good Hope, Chili, and the United States. 



Family VESPIDM. 

 46. POLISTES CHINENSIS, Fabr. 



Polistes chinensis, Fabr., Syst. Piez., 270. 



,, Sauss., Mon. Guepes Soc., 56, tab. 7, fig. 2. 



Hab. Neighbourhood of Yarkand. Taken in May. Hong- Kong ; Shanghai. 



Specimens from Yarkand are frequently more marked with yellow spots than any 

 I have seen from China, whilst others exactly resemble Chinese ones, which do not appear 

 ever to have any yellow spots on the mesothorax, which the Indian examples usually have. 

 The genus Polistes is cosmopolitan, but no species has been found in the United Kingdom ; 

 species occur in South Europe, in India, China, Borneo, in the Islands of the Eastern 

 Archipelago, in Africa, Australia and Tasmania, Brazil, Central America, Mexico, and North 

 America ; from seventy to eighty species are known 



47. VESPA GERMANICA. 



Vespa germanica, Fabr., Syst, Piez., 256. 

 Pauz., Faun. Germ., 49, 20, $ . 



St. Farg., Hym., i, 515. 



Ratz., Forst. Ins., Bd. iii, 51. 



,, Smith, Zool., ix., Append, clxxvii. 



Sauss., Mon. Guepes Soc., 116, pt. xiv, fig. 4. 



Found at Sanju, and in its neighbourhood ; also at Yangihissar, Eastern 

 Turkestan. 



