220 
Mr. J. O. Westwood on Caprijication. 
rum parvorum, circa ducentorum, e grossis Ficus Caricas ferae 
natorum quos e comitatu Tyrolensi adportaverat. Grossi floribus 
masculis et femineis repleti erant, germina autem omnia, perpaucis 
exceptis incolumibus inania et foraminibus singulis parvis rotundis 
percussa conspiciebantur. E bis foraminibus Hymenoptera ista 
provenerant postquam larvae eorum interanea germinum comede- 
rant et intra putamen intactum mutationem subierant.” He then 
gives a minute description of the individuals of this colony, all of 
which were described as females, and as having the ovipositor 
“ longitudine dimidiae aut tertiee partis abdominis;” and observes, 
“ E vitae ratione horum animalculorum conjiciebam ea ad Cynipem 
Psenen Linnaei referenda esse.” He then introduces a disquisi- 
tion upon the insects described by Pontedera and Hasselquist: 
and points out the differences in structure and habits between his 
insect and the genus Cynips and the Clialcididce ; concluding thus, 
“ Num Cynips Ficus et Cynips Caricas Hasselquistii vitae ratione 
omnino cum nostra Blastophaga congruentes, num forsan quoque 
Cynips Sycomori Hasselquistii ad unum idemque genus cum ilia 
redigendi sint, haud dijudicare queo cum species istas nec ipsas 
viderim, nec satis accurate descriptas invenerim.” 
I am fortunately enabled to clear up some of the doubts enter- 
tained by the author last quoted relative to some of these insects, 
extraordinary not only in their economy, but also in the peculia- 
rity of their structure. In the Linnaean cabinet are preserved a 
considerable number of specimens, ticketed by Linnaeus himself 
Cynips Sycomori, and doubtless forming portions of those brought 
from Egypt by Hasselquist himself. A minute examination of 
these insects has enabled me not only to ascertain their generic 
identity with the Blastophaga of Gravenhorst, but also to discover 
the real affinity of the anomalous genus Agaon of Dalman. 
Blastophaga Sycomori. (Plate XX. Fig. 4.) 
Ex individuis Linnaeanis descripta. 
Caput magnum, ovatum, depressum, lateribus subrotundatis,fos- 
sula longitudinali dorsali ; oculis mediocribus lateralibus, ocel- 
lis obsoletis? Antennce capite paulo longiores, ad marginem 
anticum capitis insertae, 12-articulatae ; articulo lmo magno, 
ob-conico ; 2do minori, ad apicem ejus lateraliter inserto ; 
Stio subgloboso; 4to tenuiori, apice in spinam acutam latera- 
lem exeunte ; 5 to minimo, angulariter praecedenti affixo ; 
reliquis septem subasqualibus, ultimo tamen parvo conico, 
(tribus ultimis clavam sublaxam formantibus). Mandihulce 
