FOSSOHIAL WASPS. 621 



68. PiSON REGALIS Sm. 



Pison regcdis Sm. Trans. Ent. Soc. London, (2) ii. p. 34 

 (1852), $cJ. 



Allied to insigne Sickm., but much larger ; the male has 

 similar transverse ridges on the second, third, and fourth ventral 

 segments, which appear also in a rudimentary form on the 

 second and third segments of the female. But it differs from 

 insigne in the absence of a tubercle on the mesopleurse before the 

 intermediate coxse, and in the absence of a transverse depression 

 on the mesosternum. The apical ventral segment of the male is 

 very deeply emarginate, with a long spine on each side. 



Hah. Ning-po-foo, China {Fortune) ; Hsikou, near Tientsin 

 {F. M. Thomson), June. 



k *69. Pison insigne Sickm. 



Pison insigne Sickm. Zool. Jahrb. viii. p. 210(189.5), S . 



Differs from P. regalis as noticed above ; the mesonotum is 

 also more sparsely and finely punctured. 



ffab. Nankou Pass, N". China {Weher). 



70. Pison xanthopus BruUe, 



Nephridia -xanthopus Brulle, Ann. Soc. Ent. France, ii. p. 408 

 (1833). 



Pison ohscurus Shuck. Trans. Ent. Soc. London, ii. p. 75 

 (1837), 2S. 



A wide-ranging African species in which the median segment 

 is strongly obliquely striated, the three or four apical abdominal 

 segments in the male more or less red ; the clypeus in the male 

 is somewhat angular in the middle on the apical margin, but not 

 produced into a tooth, that of the female very broadly rounded 

 or subtruncate ; the posterior ocelli further from each other than 

 from the eyes, separated from the eyes by less than the diameter 

 of an ocellus. The position of the second recurrent nervure 

 is variable. ' 



Hah. Meadi, Egypt {Egyptian Department of Agriculture)^ 

 July; Entebbe, Uganda {G. G. Gowdey), March, August, and 

 September ; Obuasi, Ashanti {Dr. Graham), February to April ; 

 Sierra Leone {Morgan). 



/ *71. Pison montanus Cam. 



Pison montanus Cam. in Sjostedt, Kilimandj. Meru Exp. ii. 

 p. 289 (1910), S . 



The description is poor, but from the coarse sculpture the 

 relationship would seem to be nearest to allonymum. 

 Hah. Kibonoto, Kilimandjaro. 



