ii. Pronotum and prosternum destitute of granules.
j. Border of abdomen entirely black except for a narrow yellowish spot at the apex of one segment. Texas C. gerstaeckeri
jj. Border of abdomen otherwise marked.
k. Beak slender, joints one and two slightly pilose, two more than twice as long as one; tubercles at the apical angles of the pronotum slightly acute, conical. Md. to Ill. and south. The masked bed bug hunter ([fig. 71]). C. sanguisugus
kk. Beak entirely pilose, joint two a third longer than joint one; joint one much longer than three; tubercles at the apical angles of pronotum slightly elevated, obtuse. Ga., Ill., Tex., Cal. C. variegatus
ff. Antenna inserted on top of the head between margins, close to the eyes; antenniferous tubercles not projecting from the side of the head.
g. Anterior lobe of the pronotum with a bispinous or bituberculate disc; femora unarmed. S. arizonica, S. bicolor. Southwestern species. Spiniger Burm.
gg. Disc of pronotum unarmed; apex of scutellum produced into a spine; ocelli close to the eyes; eyes large and close together. Reduvius Lamarck
h. Color piceous. Widely distributed in the United States. ([Fig. 20]). R. personatus
hh. More or less testaceous in color. Southwestern states R. senilis