June, ’24] 
SCIENTIFIC NOTES 
415 
Casnonia pennsylvanica Linnaeus Anaedus brunneus Ziegler. 
Pinophilus latipes Gravenhorst Chalepus dorsalis Thunberg. 
Languria mozardi Latreille. Hypera punctata Fabricius. 
MelanophthalmaamericanaMannerheim. Chalcodermus collaris Horn. 
Acylomus ergoti Casey. Tyloderma foveolata Say. 
Calathus gregarius Deean. 
Besides these adult insects, a nymph of a reduviid and of an unidenti¬ 
fied heteropteron, two carabid larvae, some cutworms and spiders were 
found among the mullen leaves. 
Scientific Notes 
Oriental Fruit Moth. Among the interesting observations on the activities of 
Laspeyresia molesta this spring was a flight of moths on May 6. On this date,during 
the morning and at midday the adults were plentiful; flying about in the orchard 
and resting on the foliage and stems. Mating pairs were noted. Contrary to the state¬ 
ments in several publications on the subject the adults were very active during this 
bright sunny day, temperature about 82 to 85, no wind, in fact the warmest day of 
the spring. 
A. B. Champlain 
T. L. Guyton 
Notes on the Life History of Disonycha laevigata Jacoby in Porto Rico. This- 
shining green flea beetle has been known from Jamaica and Santo Domingo for some 
years, but was noted at Guanica, Porto Rico in August 1921. The writer found it 
abundant at the College and Experiment Station grounds at Mayaguez in September 
1921. A note upon its food plants, by Mr. G. N. Wolcott, Entomologist of the In¬ 
sular Experiment Station at Rio Piedras, appeared in the Journal of Economic 
Entomology for October 1923. 
In the college year 1922-23 Messrs. Rafael Bemudez and Armando Arroyo and 
other students worked out the life history of this new pest of beets and chard in 
Porto Rico, also life histories of two other flea beetles, Oedionychis cyanipennis Fabr. 
and Haltica occidentals Suffrian, but as neither of these latter species are pests of 
cultivated plants in Porto Rico, so far as known to the writer, space will be taken 
here to record only the notes on Disonycha laevigata Jac. which is a serious pest. 
The adult is about 4.5 mm. long, the female being larger than the male, with glossy 
green elytra, which in some of the dried specimens change to deep blue. The head, 
thorax and abdomen are orange as are also the legs excepting the distal portions 
which are dark. The eyes are black and the greater portion of the antennae dark. 
They hop very freely and fly rapidly. During the hours of hot sunshine most of them 
hide on the lower surface of the leaves or in crevices. 
The eggs are of a soft shade of terra cotta to grenadine red, fusiform, and beau¬ 
tifully fretted with minute pits in honeycomb pattern, and are either glued to the 
underside of leaves or deposited upon the soil near the stem of the plant. They 
hatched in from four to seven days, the majority of the egg clusters hatching in 
five days. The larva emerges from the side of the egg, near the apical end, when the 
other end is attached to a leaf, leaving a yellowish white chorion. 
