ADDENDA 1848. 
For a full description of this fly, OE. Cervi , we refer the reader to page 92 of our 
Monograph, 2nd Supplement. 
The following communication was sent by me to the “ Zoologist ” of my friend Edward Newman, No J for 
January, for the year 1847. ’ ,J 
Note on the Bot infesting the Stag .—After considerable delay, from various unforeseen causes, I am 
enabled to present thy subscribers with a view of the larva and pupa of the bot of the deer, objects hitherto 
quite unknown,. I believe, to naturalists. Reaumur has indeed given a representation of the larva of this 
species, but it is evident, from the very elongated figure he has given of it, that it must have been dead 
some time, and obtained this lengthened figure from putrefaction. This larva, several of which I have had 
alive, so much resembles that of the CEstrus of the sheep, that they might be taken on a careless inspection 
for one another, that of the deer is, however, somewhat proportionally longer and less angular. All 
efforts to preserve them out of their locality in the throat of the stag seem hopeless; I have had many from 
the New Forest by the kindness of the Superintendant there, and though kept on membranes and fed with 
milk in a . warm place, they uniformly died within forty-eight hours. The present specimen was so far 
advanced m its growth that it assumed the chrysalis state, but died in that state and never came out. 
Though positive proof still fail us, I am brought to the firmest conviction that the stag bot is no other than 
the CEstrus pictus, found by my late friend George Samouelle, in the New Forest, and since taken in the 
same place by our very worthy friend and excellent entomologist, J. C. Dale, Esq.; and as there is no bot-fly 
known m this country that we do not fully understand in all its states, so it brings us to the all but absolute 
proof that it is no other than the CEstrus pictus, so called by Curtis in his excellent “British Entomology,” 
and by the continental naturalists. This larva, with others, at different times was received by me bydhe 
kind aid of my worthy friend John Bolt, of Lyndhurst, assisted by the kindly interference also of the present 
forest-keeper and ranger, who desired any larvse found in the killed venison to be brought to him. Any 
one desirous of seeing a good representation or figure of this species may consult my “ Treatise ” on this 
genus, pi. 1, fig. 40, with nearly or quite all the other members in their respective changes of this truly 
remarkable family. 
Detrudator. — Cuterebra, nigra, holosericea, abdomine glabro ceerulescenti nigro, 
lateribus albo bicingulatis, posticeque rufo. 
Habitat calidioribus Americes. Ex Museo Dom. Westwood. Yid. fig. 4. 
Descr. Ctedit maximis hujus generis. Caput obtusum, vertice atro, inter 
oculos rufum, ore et inferne late album hirsutum. Thorax ater holoseri- 
ceus, infra insertiones alarum et subtus, albus. Iialteres concayte conco- 
lores, erectee. Alee longiores aurulento-fuliginosee. Abdomen laete ceeru- 
leum ad latera cingulis duobus latis albis, apiceque hirsuto flavescenti 
rufo. Pedes omnino atri tarsis preelongis articulis sagittato-acutis. 
Atrox. —Cut. atra, glabra, abdomine ceerulescenti-atro marginibus segmentorum albis. 
Habitasse creditur in Africa, v. fig. 5. Ex Museo D. Westwood. 
Descr. Facile inter maximas hujus generis omnino atro ceerulescens, 
lucidus. Thorax antice scabriusculus, postice glaber. Halteres scutellum 
circumcingentes, erectee, maxinue. Alee pariim puculatee, obscure aurulento, 
fuliginosee. Abdomen latum, obtusum, incurvatum, atro ceeruleum inci- 
surarum marginibus, albis. Ad latera et subtus albo late conspersum. 
Pedes atri geniculis tibiarum extus albicantibus. 
