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IOWA ACADEMY OP SCIENCE 
19. SPINIGER Burm. 
Burmeister, (b)234; Am. et S. 234; Stal (f)109, 113; Cbampion, 202. 
i=Acrocoris lldA.n=AcidO'][>arius ^tdi\=Micracidius ^i 2 l=OvistTiacidius Berg. 
=^Pantopsilus Berg.) 
About sixty species have been referred to this genus but they are all confined 
to Central and South America except four. 
a. Anterior lobe of the pronotum armed with two erect spines on the disc. 
b. Scutellum bearing an erect spine spinidorsis 
bb. Scutellar spine oblique Umdatus 
aa. Anterior lobe of pronotum unarmed; scutellum bearing an oblique spine.. 
arizonica 
S. AfeizomcA Banks (b) is a recently described species from Arizona. It is 
a shining deep black in color and 22 mm. long. 
S. spiNiDOEsis Gray {=flavipennis MsLYr=flavis,pinis Stal) is found in Yu- 
catan. The scutellum bears a long erect spine; the pronotum bears a long 
spine at each of the posterior angles and a small tubercle on each side. 
S. LiMBATus Lep. et Serv. (^circumcinctus Hahn) occurs in Mexico and the 
West Indies. The spine on the scutellum is only semi-erect; a short spine 
is found at the sides of the anterior lobe of the pronotum and the hind angles 
of the latter are acutely dilated. 
S. BicoLOE Stal (Stett. Ent. Zeit., 1859, p. 396; Berl. Ent. Zeit., 1869, p. 234). 
Banks (c) records the presence of this form in Texas and Arizona. It is dis- 
tinguished from the other species by having the posterior lateral angles rounded 
and unarmed and by possessing on the anterior lobe of the pronotum four 
small tubercles, the lateral two of which are minute. 
20. MACROPHTHALMUS Laporte 
Lap. 11; Stal, (f)109, 113; (Macrops Burm. 232; Am. et S. 342; Stal (b)121, 
(g)456; Walker, viii, 11) 
This genus requires a new name, Laporte’s being preoccupied in Crustacea 
and Burmeister’s in Reptilia. “These insects live under the bark of decaying 
trees, in forest clearings, and prey on freshly emerged Coleoptera, etc.” (Cham- 
pion, 205) 
M. HiSTEioNicus stal. Mexico and southward. Jugae very prominent, 
oblique, subconical, more or less uniting at base and together forming a broad, 
bifurcate elevation; body elongate. 
M. FALLENS Lap. Mexico and southward. Jugae not prominent; body 
rather short; corium with a narrow transverse black fascis before the apex. 
21. CONORHINUS Laporte 
Stal, (e)123; Uhler 284; Champion 206; i=Triatoma Laporte.) 
Several species of Conorhinus are well known in America and have a 
wide distribution. Their bite is dangerous. Both generic and specific char- 
acters in this paper are adapted from Stal, except for the first three species 
from Uhler and for minor additions from Champion. The key is unsatisfactory 
in the characters &. and 1)1). where it is a literal translation from Stal (e). 
In the absence of any named specimens of the group however, I am unable 
at the present time to improve it. 
