2) So me account of the Insect known b y tlie name of tli 
HessianFly and of a parasitic insect that feeds on it. Jourr! 
Acad. Nat. Sc. Yol. I. p. 45 — 48 and 63 — 64. July an 
August 1817. 
3) Monograph of the North American Insects of the genu 
Cicindela. —- American Philosophical Transactions. Ne^ 
Series. Yol. I. p. 401—426. Published in 1818. 
4) Descriptions of the Thysanurae of the United States 
Journ. Acad. Nat. Sc. Yol. II. p. 11 — 14. 1821. 
5) On a South American species of Oestrus, which infest 
the human body. Journ. Acad. Nat. Sc. Yol. II. p. 353_36C 
Deceinb. 1822. 
6; Descriptions of Insects of the Families Carabici and Hy 
drocanthari inhabiting North America. Am. Phil. Trans 
New Ser. Yol. II. p. 1—109. 1823. 
7) Descriptions of some new species of Hymenopterou 
Insects collected during the expedition to the Rocky Moun 
tains under the command of Major Long in 1819_20 
Western Quarterly Reporter. Yol. II. No. 1. for Jan. Febrji 
March. 1823. p. 71—82. Cincinnati Ohio. 5 j 
8) Descriptions of Insects belonging to the Order Neuropter; 
Linn. and Latr., collected by the expedition under the com* 
inand of Major Long. West. Quart. Report. Yol. II. No. Ü 
for Apr., May, Jun. 1823. p. 160 — 165. 
9) Descriptions of Dipterous Insects of the United States 
Journ. Acad. Nat. Sc. Yol. III. p. 9 — 54 and p. 73 _ 104 
1823. r 
10) Descriptions of Coleopterous insects collected in tho Ex 
pedition to the Rocky Mountains (356. species). Journ. Acad 
Nat. Sc. Yol. III. p. 139—216, 238—282, 298—331, 403—! 
462 and Yol. IY. p. 83—99. 1823 und 1824. 
11) Account of the Insect (Aegeria exitiosa) so injuriouf 
to the Peach tree. Journ. Ac. Nat. Sc. III. p. 216 — 217 
1823. r j 
12) Keating’s Narrative of an Expedition to the Source of St 
Peters River. 8vo. Philadelphia 1824. r 
Der Anhang enthält die Beschreibungen von 47 Coleopte- 3 
ren, 1 Orthopteron, 7 Heinipteren, 11 Neuropteren 
74 Hymenopteren und 39 Dipteren von Say. j| 
13) American entomology. 3 Yol. 1827—28. 
14) Descriptions of new American species of the genera Bu- 
prestis, Trachys and Elater. Annals of the Lyceuni 
of New York Yol. I. p. 249—268. Febr.—Jun. 1825.' 
15) Descriptions of new Hemipterous (and Orthopterous; 
Insects collected in the Expedition in the Rocky Mountains,, 
