36 



MR. F. SMITH ON HYMENOPTEROUS INSECTS 



Catalogue of Hymenopterous Insects collected by Mr. A. R. 

 Wallace in the Islands of Ceram, Celebes, Ternate, and Gilolo. 

 By Frederick Smith, Esq., Assistant in the Zoological De- 

 partment, British Museum., Communicated by W. W. Saun- 

 ders, Esq., Y.P.L.S., &c. 



[Read June 6, 1861.] 



Of the extensive and valuable additions which Mr. Wallace has 

 made to our knowledge of the geographical distribution of the 

 various genera of Aculeate Hymenoptera, none are perhaps more 

 interesting than those contained in the present paper. Two fine 

 new species of the parasitic genus Thynnus, from Gilolo, are espe- 

 cially interesting ; this being the extreme limit of the known 

 northern range of that genus from its metropolis, Australia. I 

 would also particularly direct attention to a second species of the 

 genus Metlwca from Celebes. This genus, long represented by a 

 single European species, was supposed to be confined to that 

 quarter ; but during the last few years it has been discovered in 

 North America, two species being described by Say, and one by 

 myself, from that country, one species from Cuba, another from 

 India, and two by Mr. Wallace from the Island of Celebes. 



Many fine additions to the Formicidae, as well as to the fossorial 

 division of the Aculeata, are contained in the present collections, 

 which are the property of William Wilson Saunders, Esq. 



Fam. FOEMlCIDiE, Leach. 



Gen. Formica, Linn. 



1. Formica lactaria, Smith, Proc. Linn. Soc. Supp. v. 95. 6. 

 Hab. Gilolo, Bachian. 



2. Formica quadriceps, Proc. Linn. Soc. iv. 137- 9. 

 Hab. Ceram, Aru. 



3. Formica consanguinea. F. capite abdomineque nigro-fuscis ; 

 antennis, thorace, abdomiue, squamula pedibusque ferrugineis. 



Worker. Length 3 lines. Head black, with a slight ferruginous tinge 

 and a prismatic lustre in various lights-, before tin; insertion of the 

 antenna; it is red as well as the mandibles and antenna: ; the latter 

 slender and a little longer than the thorax. The thorax narrow, and 

 mueh compressed behind ; and, as well as the legs, of a bright pale 

 ferruginous. Abdomen ovate, fuscous mid thinly sprinkled with pale 

 hairs ; the scale of the peduncle ferruginous, small, narrow, upright, 

 with the superior margin rounded. 



Hob. Celebes (Tondnno). 



This is probably the worker minor of F. virulens. 



