462 Trans. Acad. Sci. of St. Louis. 
The insect visitors, as might be expected, closely resemble 
those of the species just mentioned. 
I have noted this plant in bloom from May 17 to Septem- 
ber 15. On May 31 and June 8, 12 and 14, I observed the 
following visitors: — 
Hymenoptera —Apidae: (1) Apis mellifica L. 8,s.; (2) Ceratina tejonen- 
sis Cr. ¥', s.; (3) C. dupla Say ¢Q, s. and c. p., freq.; (4) Heriades carin- 
atum Cr. 32, s.; (5) Nomada Santee Cr. 2, s.; Andrenidae: (6) Halictus 
pectoralis Sm. Q, s. and c. p.; (7) H. ligatus Say Q, 8. and c. p., freq.; (8) 
H. fasciatus Nyl. 2, s. and c. p., freq.; (9) H. confusus Sm. 9, s. andc. 
p., freq.; (10) H. albipennis Rob. Q, s. and c. p., freq.; (11) H. pruinosus 
Rob. 9, s. and c. p.; (12) H. tegularis Rob. 9,s.andc. p.; (18) Augochlora 
similis Rob. Q, s. and c. p.; (14) Prosopis affinis Sm. 9, 8.; (15) P. pyg- 
maea Cr. 9,s.; Humenidae: (16-18) Odynerus spp., s., freq.; (19) O. anor- 
mis Say, s., fre req. ; Philanthidae: (20) eae clypeata Dahlb., s.; Sphecidae: 
(21) Ammophila pictipennis Walsh, s.; Chrysididae: (22) Chrysis sp., 8.; 
Chalcididae: (23) Leucospis affinis say 6 .; Braconidae: (24) Bracon longi- 
caudus Prov., s 
Diptera — Empidae: (25) Empis sp., 8.; Conopidae: (26) Zodion fulvi- 
frons Say, s.; Syrphidae: (27) sarees, bicolor F.; (28) P. tibialis Fil.; 
(29) Mesograpta geminata Say; (30) M. marginata Say, freq.; (31) Sphaero- 
phoria cylindrica Say; (32) Eristalis aiinidiatus Wd.; (33) Tropidia mamil- 
lata sub (34) Syritta pipiens L.; Tachinidae: (35) sp. (36) Hyalomyia 
ascens Say @7) po aa serps > D.; ( 38) pes 
6 Sarcophaga SPpPp-; 
Muscidae: (48) Lucilia Sisceink Anthom asin: a Anthomyia albicincta 
Fll.; (50) ee sp.; (51) Chortophiia sp.; Muscidae acalyptratae: (52) 
Sp. —all s. or f. 
Colsspiet Manion (53) Collops 4-maculatus F.; Mordeltidae: (54) 
Mordellistena com — mate seat —both as p. 
Lepidoptera tl —— Lyi, 8s 
Hemiptera —Ca apsidae: (56) Lygus pratensis L., 8- 
ANTENNARIA PLANTAGINIFOLIA Hook.— This is the earliest 
of the indigenous Compositae, blooming from April 12 to May 
6. Onten days — April 14 to May 4 — the following visitors 
were observed :— 
Hymenoptera — Apidae: (1) Bombus americanorum F. 9, 8., One; SS 
Ceratina tejonensis Cr. ¢’.; (3) C. dupla Say Gi’, 8-5 ab.; (4) Nomada ort 
ulata Cr. gf; (5) N. luteola Lep. 9; Andrenidae: (6) Panurgus? andreno a 
Cr. 9, s.; (7) Andrena _ Rob. 9, s.; (8) A.claytoniae Rob. i’; 5 ( : 
ee pura Say 9, s. and c. p., a Sa A. similis Rob. 9, 8- #2 
