152 Rev. Leonard Jenyns’s Description of the 
From Wiedemann’s genus Colax it is distinct in the possession 
of ocelli, rudimental mouth, and nervures of the wing. I agree, 
however, with Latrielle in thinking, that notwithstanding the ab- 
sence of a proboscis, the last-mentioned genus is referable to the 
Anthracidce rather than the (E sir idee ; the nerves of its wings 
being evidently disposed upon the same type as in Nemestrina. 
I am acquainted with but one species of this new genus. 
Trichopsidea cestracea , Westvv. 
Obscure nigra ; thorace, facie, marginibusque segmentorum 
abdominalium fulvo-pilosis ; pedibus rufescentibus, femoribus 
ad basin obscuris ; alis hyalinis, costa obscuriori nervisque 
costalibus crassioribus. 
Long. corp. lin. 4|. Expans, alarum lin. 10. 
Habitat in Nova Hollandia. In Musaeo nostro. 
Tab. XIV. fig. 9. Trichopsidea cestracea, and details. 9 a. Front of head. 
9 b. Head sideways. 9 c. Antenna. 9 rf. Trophi. 9 e. Wing. 9 f. Hind 
leg. 
XXIX. Notice of a Case in which the Larva of a Dipterous 
Insect, supposed to he the Anthomyia Canicularis, Meig., 
were expelled in large quantities from the human intestines ; 
accompanied by a Description of the same. By the Rev. 
Leonard Jenyns, M.A., F.L.S., 8fc. 
[Read 5th June, 1837.] 
I am indebted to Dr. Haviland, of Cambridge, for the knowledge 
of a case which occurred lately in his practice as a physician in 
the neighbourhood of that town, in which large quantities of the 
larvae of some insect were expelled from the human intestines. 
Conceiving that the circumstance may afford interest to the mem- 
bers of the Entomological Society, as also that it is of importance 
to science to record every authentic case of this nature, I have 
obtained the following particulars, which, together with a descrip- 
tion of the larvae in question, I beg leave to bring under their 
attention. 
The patient was a clergyman, about seventy years of age. The 
symptoms of which he complained previously to the first appear- 
ance of the above larvae were — general weakness, loss of appetite, 
and a disagreeable sensation about the epigastrium, which he de- 
scribed as a tremulous motion. These symptoms commenced in 
