1914] Life History of Lady Beetles. 214 
Mon., A. pomi De Geer, A. cerastfolit Fitch, A. medicaginis, 
Koch, Phorodon humult, Schrk., A. oenotherae Oest., A. brassicae 
Linn., Chaitophorus negundinis Thos., C. populicola Thos., 
C. populifolu Fitch., Macrostphum ambrosiae Thos., M. rud- 
beckiae Fitch., M. pisi Kalt (?), M. rosae Linn., Hyalopterus 
arundinis Fab., M. cynosbati Oestl., Lachnus sp., Melano- 
xantherium smithiae Monell, Myzus cerast Fab., Prociphilus 
fraxinifoli Riley, S. lanigera Hausm, and Melanoxantherium 
bicolor Oestl. . 
Outdoors they were observed feeding on A. pomi, M. 
rudbeckiae, C. negundinis, Myzus cerast, Mac. on Euphorbia, 
A. atriplicis Linn., M. pist, and M. cynosbati. Although these 
were all the lice noted, H. convergens has been found feeding on 
practically all of the common plant lice; in fact, it does not 
seem to be at all particular, and, both because of the wide range 
of its feeding habits, and on account of the comparative hardi- 
ness of constitution, probably does as much or more in con- 
trolling the plant lice than any other Coccinellid. 
Hippedamia sinuata Muls. 
This species also is a comparatively common ladybeetle 
about Fort Collins Colorado though it does not seem to rank 
very high in economic importance in this vicinity. 
Adult: Fig. 5, Plate XXXII. 
Head black with fine apical line of whitish and median pale spot 
connected laterally with the eyes. Pronotum black with pale border 
along anterior and lateral margins with tendency to abbreviated acute 
line before, though this is often wanting; two converging discal marks 
as in convergens; elytra yellowish red with suture black from one to 
three-fourths of entire length and each with four spots, the first near 
humeral angle, the second, a large one, just back of the middle, near the 
suture, the third slightly caudo-lateral of this, and another at apical 
fourth, the second and third spots very often united and frequently 
humeral spot, also, joined to second spot by means of vitta, coalescence 
of third and fourth spots occasionally occurs, thus completing the entire 
amalgamation of all the spots; legs black; general shape rather narrow; 
length 5-6 mm., width 3-3.9 mm. 
Egg: Fig. 8, Plate XXXII. 
Amber yellow; length 1.4 mm.; width .6 mm. 
Larva: Fig. 7, Plate XXXII. 
First instar: Black except pale spot on lateral margin of first 
abdominal segment and lateral and dorso-lateral of fourth abdominal 
segment. Second instar: same as first except that pale spots are more 
pronouncedly yellowish. Third instar: same as preceding but spots 
