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 Frepericx Surru, Esq., Assistant in the Zoological De- 
partment, British Museum. Communicated by W. W. Saun- 
pDERS, Esq., V.P.L.S., &e. 
[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 Methoca 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 Formicide, 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. FORMICID, Leach. 
Gen. Formica, Linn. 
1. Formica laetaria, 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, abdomine, squamula pedibusque ferrugineis. 
Worker. Length 3 lines. Head black, with a slight ferruginous tinge 
and a prismatic lustre in various lights; before the insertion of the 
antennz it is red as well as the mandibles and antenne ; the latter 
slender and a little longer than the thorax. The thorax narrow, and 
much compressed behind ; and, as well as the legs, of a bright pale 
ferruginous. Abdomen ovate, fuscous and thinly sprinkled with pale 
hairs; the scale of the peduncle ferruginous, small, narrow, upright, 
with the superior margin rounded. 
Hab. Celebes (Tondano). 
This is probably the worker minor of F. virulens. 
