The Gardeners' Chronicle and Agricultural Gazette . he outside ; andthere was also a smaller hole, connected with the economyof some parasite. On examining the interior of the gallmore minutely, I detected some pure white maggots andpupfe of another Cynips, which, from their smaller size,I took to be the males of Cynips Quercus-folii; but sixor seven of them hatched the following May, when theyproved to be a small species very like C. Quercus-gemmje ; but the ochreous antennje and legs distinguishit from that species, and it has been described in CurtissBritish Entomology, under the name of Pa
The Gardeners' Chronicle and Agricultural Gazette . he outside ; andthere was also a smaller hole, connected with the economyof some parasite. On examining the interior of the gallmore minutely, I detected some pure white maggots andpupfe of another Cynips, which, from their smaller size,I took to be the males of Cynips Quercus-folii; but sixor seven of them hatched the following May, when theyproved to be a small species very like C. Quercus-gemmje ; but the ochreous antennje and legs distinguishit from that species, and it has been described in CurtissBritish Entomology, under the name of Pallidi-cornis.* On the 20ih of June I also bred from thesame galls a parasitic fly, named Decatoma the galls found in November I obtained specimensof the C. Quercus-folii the following March, and likewisethree miles of a beautiful species of Callimome, anotherparasite; there were at that time other pupre of thesame insect in the galls, which produced two femaleCallimomes ihe middle of May, at least six weeks afterthe males had C. Qaercus-olii is one of the largest British species,and received its nam^ from LiunEeus ; the males are sofdr le-s abunddUt than the females that they have hithertoevided my searcb ; indeed, this is a remarkable featurein the economy of the gall-flies, for there are several ofthe most common species of which I have not yet beenable to obtain the males. Tl;e female of C. Quercus-fuiii is gL-neruliy black, and clothed with coarse, short,grizzly hairs, excepting the abdomen : the antennsi arelonger than the thorax, slender, filiform, and composedof Vo juints ; the basal one is stout, the secoud minute,thiid the longest, the following decreasing in lenoth untilthey become very short towards the apex : the head isrough or granulated, and often red round the eyes ; thereare three minute ocelli on the crown : the thorax, whichis very gibbcse, has two longitudinal sutures, whichdivide It into three convex portions ; these are intenselyblac
Size: 1843px × 1356px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1840, bookidg, booksubjecthorticulture
