COLLECTED IF BOKNEO, ETC. 115 



yellow, with only the apical margins of the segments narrowly 

 fuscous. 

 Hab. Borneo (Sarawak). 



Gen. loAEiA, Sausswe. 



1 . Icaria opulenta. Smith, Cat. Hym. pt. v. p. 99. $ . 



The male of this species has been received from Borneo since I described 

 the female, from which it only diflfers in having the clypeus and man- 

 dibles entirely black ; in other respects they agree. 



2. Icaria speciosa, Sauss. Rev. Zool. {Gu&in, 1855) p. 374. 

 Hab. Borneo. Malacca. Sumatra. 



3. Icaria ferruginea, Fabr. 



Polistes ferruginea, Fabr. Syst. Piez. p. 277- 

 Hab. Malacca (Mount Ophir). India. 



4. Icaria lugubris. /. opaca nigra pube sericea variabili vestita, 

 alis subhyalinis, apice nigro subnebulosis. 



Female. Length 6 lines. Black: covered with a fine changeable white 

 silky pile ; head opake, delicately roughened ; the clypeus angular in 

 front and with a broad white margin, smooth and shining anteriorly ; 

 the mandibles smooth and shining, with a white spot at their base. 

 Thorax finely rugose ; the sides of the prothorax, the scutellum 

 and post-scutellum, very obscurely tinged more or less with ferrugi- 

 nous, sometimes not observable ; the wings subhyaline, with a dark 

 brown stain at the apex of the externo-medial cell, a similar stain 

 occupies the marginal cell, and a paler cloud descends from it across 

 the apex of the wing. Abdomen : the apex of the petiole and the 

 apical margins of the third and following segments very indistinctly 

 tinged with ferruginous, generally black ; the third and following seg- 

 ments densely covered with silky pile. 



In my Catalogue of Vespidae, I have indicated this species as being a 

 black variety of I. speciosa ; I had only one or two examples at that 

 time for examination ; but having now a series, I am satisfied of their 

 being distinct : in I. speciosa the first segment of the abdomen is as 

 broad as long, in the present it is longer than broad. 



Hab. Borneo (Sarawak). 



6. Icaria modesta. I. nigra, alis fulvo-hyalinis, abdomine ferru- 

 gineo. 



Female. Length 5 lines. Black : the head and thorax roughly punc- 

 tured ; the face and cheeks with short griseous pubescence ; the cly- 

 peus angular in front, produced into an acute point. Thorax : the 

 posterior margin of the prothorax ferruginous in the middle ; the 

 apical joints of the tarsi ferruginous ; wings fulvo-hyaline, the ner- 



