COLLECTED IN BOBNEO, ETC. 71 



2. Myrmica. pellucida. M. fusco-testacea ; antennis pedibusque 

 pallide testaceis^ abdomine pellucido. 



Worker. Length U line. Head and thorax dark fusco-testaceous ; 

 antennae and legs pale testaceous, nearly white ; the divisions of the 

 thorax distinctly marked, that between the meso- and meta-thorax 

 rather deeply impressed ; the abdomen of a transparent pale testa- 

 ceous colour J the metathorax not spined. 



Hab. Singapore. 



Mr. Wallace, on a ticket attached to specimens of this insect, says, 

 " House-ant : transparent abdomen : very active, but not destructive." 



3. Myrmica vastator. M. pallide flavo-testacea, Isevis ; abdomine 

 nitido, apice fuscescenti. 



Worker. Length 1^ line. The head, thorax, antennae, legs, and pe- 

 tiole of the abdomen, pale yellow-testaceous ; the head oblong qua- 

 drate ; the eyes small, placed forwards on the side of the head ; 

 antennae clavate, the club formed of three joints j the thorax deeply 

 strangulated between the meso- and meta-thorax ; the latter without 

 spines ; the abdomen pale at its base, fuscous at its apex. 



Hab. Singapore. 



Mr. Wallace attaches a ticket to this species, " House-ant : very de- 

 structive." 



4. Myrmica agilis. M. pallide ferruginea ; abdomine nigro, basi pal- 

 lido, laevissimo et politissimo. 



Worker. Length 1 line. Head, antennae, thorax and legs pale rufo- 

 testaceous ; head and thorax very smooth and shining ; the flagellum 

 clavate, the club consisting of three joints, the basal joint of the fla- 

 gellum as long as the three following. Thorax swollen anteriorly, 

 the metathorax with two minute spines. Abdomen ovate, the first 

 node of the peduncle elongate, the second subglobose. 



Hab. Malacca. 



Gen. Heptacondylus, Smith. 



Head suborbiculate, wider than the thorax; eyes lateral and ovate; 

 stemmata placed in a triangle on the vertex; antennce geniculated, 

 filiform, the scape nearly as long as the flagellum, placed forwards on 

 the head at the base of the clypeus ; the flagellum 6-jointed, the joints 

 clavate, except the apical one, which is cylindrical ; the labial palpi 

 3-jointed ; the maxillary palpi 3-jointed. Thorax ovate, gibbous ; 

 the scutellum very prominent ; the metathorax armed with two acute 

 spines (in the females), compressed and strangulated (in the workers). 

 The superior wings with one marginal and one complete submargi- 

 nal cell, the submarginal cell receiving the recurrent nervure ; the 

 superior angle of the discoidal cell touching the costal nervure. Ab- 

 domen ovate ; the peduncle consisting of two nodes. 



