230 FAMILY VI. — COREIDJE. 



II. Archimerus Burmeister, 1835, 321. 



Oblong-oval species of medium size having the head sub- 

 quadrate, about as wide as long; tylus slightly longer than 

 cheeks, deflexed and filling the space between the bases of an- 

 tennas; beak reaching middle of mesosternum, joints 1, 2 and 4 

 subequal, 3 shorter; bucculse short, wide, their margins 

 rounded; antennas short, the basal joint stout, feebly curved, 

 twice as long as head ; 2 — 4 more slender, the second one-half 

 longer than third, the latter equal to or a little shorter than 

 fourth, all strongly beset with bristly hairs ; pronotum subhex- 

 agonal, the apex less than half the greatest width, the posterior 

 side margins sinuate, forming a distinct angle with the square- 

 ly truncate base, the latter wider than scutellum ; connexivum 

 widely exposed; membrane scarcely reaching tip of abdomen, 

 its veins numerous, crowded, mostly forked ; front femora 

 armed beneath near apex with two prominent spines ; hind ones 

 of male strongly swollen, armed beneath with several large 

 spines ; hind tibias of female slender, cylindrical, feebly spined 

 beneath ; of male, stouter, somewhat compressed, curved at 

 middle and there armed beneath with two very stout spines, 

 beyond these to apex with numerous smaller ones ; spiracles 

 placed near the front margins of the ventrals. Genital plate 

 of males elliptical, convex, almost vertical. 



Six species are known, four from the United States, three of 

 which have been recorded from our territory. 



KEY TO EASTERN SPECIES OF ARCHIMERUS. 



a. Antennae stout, less than half the length of body. 

 b. Connexivum uniform reddish-brown; femora without erect bris- 

 tly hairs. 165. calcarator. 

 bb. Connexivum distinctly alternated throughout with yellow and fus- 

 cous spots; femora with numerous erect blackish bristly hairs. 



166. alternatus. 



aa. Antenna? more slender, slightly more than half the length of body; 



front angles of second and third connexivals only with a small 



pale spot. 167. ashmeadi. 



165 (270). Archimerus calcarator (Fabricius), 1803, 192. 



Elongate-oval, subdepressed, widest behind midd 1 ^ of abdomen. Pale 

 reddish-brown throughout, the membrane slightly darker; very thinly 

 pubescent with short scale-like silvery gray hairs. Head broader across 

 the eyes than long; beak slender, but slightly surpassing front coxa?, its 

 first joint nearly twice the length of buccula?, the latter short, oval. Pi-o- 



