172 
Larger species, male 7 mm., female 7-9 mm., pronotum about as.in preceding 
SPOCLOS so, ya ava: tayetls ata tse oto ubsotacolssate ale ahove. simahs Us laletsy ate rei Mealelt eye tale egal teense ne Seema dubius. 
AMAUROCHROUS PARVULUS V. D. 
Podops parvulus Van Duzee, Trans. Am, Ent. Soc., Vol. 30, p. 22. 1904. 
Taken at Normal in central Illinois, March 26 and June 27; also in northern 
Illinois. Can., Mass., Kan., Col. (V. D.). 
AMAUROCHROUS CINCTIPES Say 
Tetyra cinctipes Say, Am. Ent., Vol. 3, 1828; Compl. Writ. Ent. N. A., Vol. 
1, p. 94. i j 
Seems to prefer sandy land, and often occurs in driftwood collec- 
tions. The imagines are found in all sections of Illinois, and throughout 
the year except in April and the early part of May. Algonquin, Urbana, 
Homer, Monticello, Havana, Quincy, Carbondale, and Pulaski, March 19, 
30; May 19, 24, 28, 31; June 9, 21; July 9; August 16, 19, 20; September 
21; October 27, 28, 30; Nov. 14. Occurs in some of the Southern States, 
but is more especially a species of the northern states and Canada. N. Y., 
N. J.,.Can. (V. D.). Duluth, Minn. (Bol.). 
AMAUROCHROUS DUBIUS P. B. 
Scutellera dubia Palisot de Beauvois, Ins. rec. en Afr. et en Amér., p. 33. 
1805. 
This species occurs in the West Indies, and has been reported from 
N. Y., N. J., Va., and Tex. The Bolter Collection contains a female 
8 mm. long, apparently of this species, from Nantucket Island, Mass. 
[The species may occur in IIlinois. | 
Subfamily HALYDINAE 
Includes but one genus in Illinois. 
BrocHyMENA A. & S. 
Key TO SPECIES 
NYMPHS 
Pronotum with large, irregular lateral thorns, the lateral outline not straight, 
very conspicuously angularly produced on posterior third, lateral cephalic 
margin with a short thorn just in front of eye...................200- arborea. 
Pronotum with small, almost equal-sized lateral teeth, the lateral outline almost 
straight, only slightly produced near posterior extremity; lateral cephalic 
margin with a short triangular protuberance just in front of eye. .4—pustulata. 
IMAGINES 
Osteole very small and inconspicuous, the auricle pale and very small or almost 
absent; pronotum produced in the form of a broad truncate process at lateral 
posterior angles, its apex with 2 or 3 sharp teeth; the paired plates at base of 
genital segments of female bulbous, their posterior margins declivitous...... 
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