Transactions of the Connecticut Academy of Arts and Sciences . in the Challenger Expedition collections. It is aWest American species according to Walker. The larvae are per-haps among those called Army-worms in Bermuda. We shouldexpect that the southern Army-worm of the United States {Laphyg-rtia frugiperda) would also be found here, but it has not beenrecorded. A. E. Yerrill— The Bermuda Islands. 112, Beet Artny-xconn. {^Laphygma exigua (IIub.)=X. macra Guen.,Noct., i, p. ]57; Butlers List, etc.)* Figures 134, a-e. This species, which was first recorded by Butler, 1884, as L. macra,is doubtl
Transactions of the Connecticut Academy of Arts and Sciences . in the Challenger Expedition collections. It is aWest American species according to Walker. The larvae are per-haps among those called Army-worms in Bermuda. We shouldexpect that the southern Army-worm of the United States {Laphyg-rtia frugiperda) would also be found here, but it has not beenrecorded. A. E. Yerrill— The Bermuda Islands. 112, Beet Artny-xconn. {^Laphygma exigua (IIub.)=X. macra Guen.,Noct., i, p. ]57; Butlers List, etc.)* Figures 134, a-e. This species, which was first recorded by Butler, 1884, as L. macra,is doubtless one of the common injurious species grouped togetherby the farmers under the general name of army-worm. Most likelyit is the army-worm that injures the common potato to a consider-able extent in some seasons. In the western United States it ischiefly injurious to the Sugar Beet, but will also feed upon commonbeets, potatoes, onions, corn, and peas, and upon various weeds,especially pig-weeds {^Amaranthns and Che^iopodium), mallows,ground plantain, Figure 134.—Beet Army-worm and moth {Laphygma exigua); a, moth ; b, c,larvpp; mit. size; c, dorsal surface of the segment bearing 1st prolegs,enlarged ; d, its head enlarged; e, f, eggs much enlarged; after Chittenden. The mature larva has a greenish or olivaceous ground-color, witha broad dorsal stripe, dotted and streaked with greenish or blackish,darkest in the middle ; two pale stripes on each side, separated by adarker band, varying from gray to black, dotted with Avhite ; headgreen, olivaceous, or smoky brown, with three whitish longitudinallines ; feet greenish. Length about inch (30 to 34°). The moth is, in general, pale ochreous brown ; the round spot onthe fore wings is pale yellowish ; the reniform spot is less conspicu-ous, with a darker center; submarginal line pale; a marginal row ofdark specks. It is an Old World insect, now widely diffused in warm is believed that it was first introduced
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Keywords: ., bookcentury1800, bookdecade1860, booksubjectscience, bookyear1866
