348 
INSECTAj IIYMENOPTEllA. 
Mayr (Verb, zool.-bot. Ges. Wien, xx. p. 940) quotes and partially confirms 
Emery’s observation that Colohopsis tnmcata is the male and C. fiiscipes the 
worker of one and the same species. lie thinks it probable that all species of 
Colohopsis have males and worliers, and considers in that case that this genus 
lias the same relation to Camponotus as Pheidole to Pheidologeion. Atp. 941 
he tabulates the known Asiatic and Australian species of Colohopsis ; and at 
p. 944 describes an insect from Tonga, apparently referable as worker to C. 
rujifronsy Smith, though in certain points so difierent from that species as 
likely to suggest the formation of a new genus for its reception. 
Prenolepis lasioides, Emery, being a true Zasius, is renamed fumatus : 
Emery, 1. c. p. 194, 
Mayr (/. c. p. 947) tabulates the workers only of 9 species of Prenolepis (in- 
cluding 2 new species), and remarlvs that the Prenolepis from the Taurus, in 
nests of which Ijederer found a Paussus, is identical with the S. -American 
P.fulm, At p. 919 he records P. vividida, Nyl., from Tonga and other islands 
of Oceania, with variations of colour &c. ; and considers it probable that P. 
ohscura, from Sydney, is the type form of this insect. 
Mayr (/. c. p. 950) describes worker and cf of Lasius claviger, Eog., from 
Connecticut and N. York. 
Formica. Mayr (1. c. p, 950) compares this genus and Lasius j notices the 
affinities of European and N.-American species of the former, especially refer- 
ring to Z\ cunieularia, Latr., from Connecticut, and F. cinerea^ from 
California. He names ohscuriventris a var. of F. truncicola, Nyl., from Con- 
necticut, and indicates a new species near Z\ inlegra, Nyl., from California. 
He also mentions workers from N. York and other localities intermediate be- 
tween F. fusca, L., and gagates, Latr,, and states that only Z\ schaufussi^ 
]\Iayr, is in any marked degree separable from the European species. The 
author speaks slightingly of Buckley’s ‘ Descriptions of new species of North- 
American Eormicida).’ 
Mayr {1. c, p. 952) describes Spanish specimens of Catagx,yphis alhicans, 
Hog. 
ILypoelinea. Mayr (/. c. p. 953 et seq.) rcjmarks generally upon the relations 
of this genus and oil Iridomyrmca:, Dolichoderus, TiquHonuif m\d Polhryomyr- 
mex ) divides the workers of Ilypoclinea into five gToups, with observations 
upon the geographical distribution of that genus, and fp. 955) tabulates all 
the known species. Acantholepis kirhii, LoAvne, is a Ilypoclinea, and a good 
species j Formica itinerans, gracilis, and rufonigra, Lowne, and Acantholepis 
mamillatus, Lowne, are also to be referred to llypoclmca, though with some 
doubts as to their specilic value ; Z'ormica smithii, Lowne, =11. purpurea 
Sm. 5 Acantholepis tuhcrculatus, Lowne, =11. nitida, Mayr j Polyrhachis fovco- 
latus, ijOwne, = II. scahrida, Hog. j Polyrhachis cuspidatus, Sm., is 2 ^ Ilypo- 
clinea. Mayr, 7 c. p. 954 et seq. 
The workers of Liometopum, Mayr, are to be distinguished from those 
of Ilypoclinea by their possessing ocelli, and their longitudinally convex 
lion-constricted thorax. L. xanthocroum. Hog. (= Iridomyrmex xantho- 
crous and I. scriceas, Mayr), however, seems an oscillating form. Mayr, 1. c. 
p. 9()0. 
Polyergus rufescens. Forel (/. c. p. 300) proves the non-existence of a 
sting in this species, which had hitherto been considered the sole acu- 
leate member of the Formicides. The Formicidee are thus easily sepa- 
