ORTIIOPTERA OF NOVA SCOTIA. — PIP:KS. 301 



lbs.; Paris green or white arsenic, 1 Ih.; molasses, 2 quarts; 

 the juice and finoly cut-up pulp and peel of 3 oranges or 

 lemons; water. 3 V^^ gals. The bran and arsenic are tlioroughly 

 mixed while dry, while the orange juice, molasses and water 

 are mixed separately and then added to the bran and poison 

 mixture so as to dampen it thoroughly. It is then sown 

 broadcast and very thinl}' over the infested area early in 

 the morning. The amount given above will cover five acres. 

 It should be applied co-operatively, at the same time, by 

 the farmers of a district in order to be really effective. The 

 cost is about 20 cents an acre at the price of ingredients in 

 1914, but just now would be considerably more. 



This species, like M. bivittatus, is attacked by a coral-red 

 parasite, which is doubtless the Red Locust-mite, Tromhidium 

 locustarum Riley, which attaches itself to the insect beneath 

 the base of the wings. A specimen taken at Hubbards, Hx. 

 Co., 31 July, 1917, had six or seven of these parasites upon it. 



18. Melanoplus extretnus (F. Walker). (Short-wmged 

 form.) 

 Melanoplus extremus. Gooderham, Proc. Ent. Soc. 

 N. S. for 1916, 24, 27 (1917); Col. and Kings Cos. 



Description. — Wing-covers either (a) not reaching tips of hind femora, 

 being about 11 mm. long, and reaching about end of abdomen in male and 

 covering usually from half to three-quarters of abdomen in female, bluntly 

 subacuminate at apex (short-winged form sometimes called M. extremus 

 Junius Dodge), or (b) wing-covers surpassing tips of hind femora, generally 

 considerably, being about 17 mm. long, and rather broadly rounded at apex 

 (long-winged form, sometimes called M. extremus scandens Scudder). In 

 the former the wings are considerably shorter than the wing-covers, and in 

 the latter form they are very little shorter than those members. Apex of 

 subgenital plate in male without a median notch; cerci of male short and 

 broad, the apical half distinctly more than half as broad as the extreme base, 

 gently curved, well rounded at tip; furcula a pair of parallel, tapering, cylin- 

 drical spines, about half as long as supra-anal plate. 



Colour. — Dark greenish-yellow, more or less fuscous. A black bar from 

 behind eye and along anterior part (prozona) of sides of pronotum; pronotum 

 olive-brown above, greenish-yellow on sides. Wing-covers olive-brown, 

 sometimes with a few dark spots on median area. Hind femora yellowish 

 tinged with red-brown, lower face usually light orange, knees darkish; hind 

 tibiae reddish or yellowish, with black spines. 



Measurements. — Male: body, 16-24 mm.; antennae, 8-9 mm.; pronotum, 

 4 mm.; wing-covers, about 11 mm. (M. e. Junius) to about 16 mm. {M. e. 



