162 SMITH OK HTMENOPTEEA OF AETT ISLANDS. 



beneath, and on the coxae most dense and ghttering; antennae more 

 slender than is usual in this genus, and tapering to their apex, the 

 joints slightly subarcuate ; the mandibles bidentate at their apex and 

 with a yellow spot at their base. Thorax : the posterior margin of 

 the prothorax, a spot beneath the wings, the tegula;, and the post- 

 scutellum yellow; the anterior and intermediate tibia; ferruginous 

 and more or less dusky above, the posterior pair ferruginous beneath. 

 Abdomen shining, the margins of the segments deeply depressed ; a 

 small ovate spot on each side of the first segment, the second and 

 three following segments with a narrow stripe on each side in the 

 middle, yellow ; the yellow markings obscure ; the apical segment 

 coarsely rugose; beneath, the segments are closely and strongly 

 punctured. 

 Hab, Aru. 



Gen. ScoLiA, Fair. 



Division I. The anterior wings with two submarginal cells and two re- 

 current nervures. 



[ 1 . ScoHa grossa, Burm. Ahh. Nat. Ges. Halle, i. p. 23. (Tiphia grossa, 



Fabr. Syst. Piez. p. 232. 4.) 

 Hab. Aru ; Java. 



The specimens of this species received from Aru are only 9 lines in 

 length ; I have examined others from Celebes, Borneo, India, and Java, 

 showing every difi^erence between 9 lines and 18 lines. 



Division II. Anterior wings with two submarginal cells and one recurrent 

 nervure. 



2. ScoLiA NiTiDA. S. nitida, atcrrima ; alis seneo et violaceo splendide 

 micantibus. 



Female. Length 11 lines. Shining jet-black, the abdomen with pris- 

 matic tints. The flagellum fusco-ferruginous beneath, the mandibles 

 ferruginous at their apex ; the wings dark brown with a splendid 

 lustre of coppery and golden tints mixed with shades of violet. The 

 head with a few punctures behind the ocelli ; the thorax with scattered 

 punctures ; the metathorax finely but not closely punctured ; the disk 

 of the mesothorax impunctate ; the abdomen with fine scattered punc- 

 tures ; the apical segment opake, rugose, and with its apical margin 

 pale testaceous ; the abdomen beneath with strong distant punctures. 



Hab. Aru. 



3. ScoLiA FULGiDiPENNis. S. nitida, nigra ; abdomine prismatico, alis 

 fuscis viride et violaceo micantibus. 



Female. Length 12-13 lines. Jet-black, shining ; head veiy smooth, 

 the hinder margin of the vertex finely punctured, the face with a few 

 fine scattered punctures ; the fiagellum obscurely rufo-fuscous. Tho- 

 rax finely punctured, the disk of the mesothorax impunctate ; wings 

 dark brown with a splendid green iridescence, with violet tints to- 



