68 MR. smith's besceiptions of htmenopteeous insects 



acutely angular in the middle, but produced into a distinct acute 

 tooth. 



Gen. HoLOPYGA, DaJdb. 



1. HoLOPYGA PURPUREA. H. purpurea, nitens, violaceo variegata; mc- 

 tathorace crasse punctatissimo ; abdominis margine apicali arcuato, 

 integerrimo ; alis subhyalinis. 



Length 31 lines. Dark blue, with tints of bright purple and green ; the 

 head, pro-, and mesothorax finely punctured, the prothorax with large 

 coarse punctures at the sides ; the metathorax with large deep fossulets 

 at the sides ; wings light brown, with their base hyaline. Abdomen 

 delicately punctured, smooth and shining ; the body brilliant green 

 beneath. 



Hub. Makassar. 



Gen. FoEMiCA, Linn. 



1. Formica smaragdina, Fabr. Spec. Ins. p. 488 § . 



Hab. Celebes ; Borneo ; Malacca ; Sumatra ; Philippine Islands. 



2. Formica pallida. Smith, Proc. Linn. Soc. vol. ii. p. 57 {worker major). 

 The insect described in a former paper was the worker (major). The 



small worker, and also the female, have been received from Celebes. 

 The female is of a blackish brown, with the flagellum, prothorax, scu- 

 tellum, scale of the peduncle, legs, and sides of the thorax pale fer- 

 ruginous ; the wings hyaline, with the nervui'es pale testaceous ; the 

 apical margins of the segments of the abdomen pale ; the scale of the 

 peduncle rounded above. The worker minor is pale ferruginous, with 

 the head a little darker and the abdomen blackish brown ; the head a 

 little wider than the thorax ; the thorax compressed, and very narrow 

 behind. 

 Hab. Celebes; Sarawak. 



3. Formica gracilipes. Smith, Proc. Linn. Soc. vol. ii. p. 55. § • 

 Hab. Celebes ; Singapore. 



4. Formica familiaris. F. rufo-flava, Isevis, nitida; alis subhya- 

 linis, nervuris pallide testaceis ; abdomine cinereo micante vestito. 



Female. Length 4 ^ lines. Entirely of a pale reddish-yellow. Head : 

 the sides behind the eyes straight ; the posterior angles rounded, the 

 hinder margin of the vertex slightly emarginate ; the ocelli large and 

 prominent ; the clypeus and mandibles very smooth and shining, the 

 latter with a row of black teeth on their inner margin. Thorax ovate, 

 smooth and shining ; wings subhyaline, the nervures pale testaceous, 

 the discoidal cells obsolete. Abdomen wider than the thorax, covered 

 with a thin, changeable, sericeous pile ; the peduncle minute, obliquely 

 inclined and fitting into a cavity at the base of the abdomen. 



Hab. Makassar. 



This insect bears a strong resemblance to F.Jlava of Europe. 



