COLLECTED AT BACHIAN, KAISAA, ETC. 129 



I have separated this insect from R. heemorrhoidale with some doubt of 

 its being an extreme variety of that species ; if so, it is distinguishable by 

 its much more deUcate punctation and higher colouring. 



G-en. Odyneeus, Latr. 



1. Odynerus petiolatus, Smith, Proc. Linn. Soc. iii. 164. 1. $ . 



The male received from Dory is very like the female, and has the abdo- 

 men similarly petiolated ; it differs in having the clypeus, scape and man- 

 dibles yellow ; the yellow spots on the thorax are much larger and brighter. 

 In other respects the sexes are identical. 



Hab. Dory ; Aru. 



Gen. Alastor, St. Farg. 



1. Alastor COGNATUS. ^.capite thoracequenigris; abdomine am-an- 

 tiaco-i'ubro, primo segmento nigro ; alls fuscis. 



Male. Length h\ lines. Head and thorax black, opake and rugose ; 

 the clypeus covered with silvery-white pubescence, deeply emarginate 

 and bidentate : an elevated carina runs from each tooth halfway up 

 the clypeus ; a yellow spot between the antennae ; wings dark fuscous. 

 Abdomen orange red, with the basal segment opake-black. 



Mab. Dory. 



This insect exactly resembles the A.fraternus of Saussure : it may pos- 

 sibly be the male of that species. 



Grroup Social Wasps. 



Fam. VESPID^, Leach. 



Gen. PoLisTEs, Latr. 



1. Polistes tepidus, Fahr. Syst. Piez. p. 271. 



Hab. Bachian; Key Island; Solomon Islands; New Guinea; Australia. 



2. Pohstes Picteti, Sauss. Mon. Guepes Sot. p. 69, tab. 6. fig. 8. 

 Hab. Ambopia ; Austraha ; Ceram ; Celebes. 



3. Polistes coLONicus. P. rufus, flavoque varius ; metathorace ab- 

 domineque basi nigris. 



Male. Length 8| lines. Rufo-ferruginous ; the face pale ferruginous, 

 and densely covered with glittering silvery pile. The metathorax, and 

 posterior portion of the mesothorax beneath, black ; the wings fulvo- 

 hyaline with the uervures ferruginous ; the posterior coxae and basal 

 segment of the abdomen black, the posterior portion of the basal seg- 

 ment rufous, with tlie apical margin bordered with yellow ; the apical 

 margins of the following segments narrowly and obscurely yellowish. 



Hab. Ambovna. 



