IOWA ACADEMY OF SCIENCES. 237 



curved, inflated, extended posteriorly, margin second abdominal segment 

 white. 



Length: female, 5.5 mm., male, 4.5 mm.; to tip of elytra, 6.5. 



Apterous female. Head wider than pronotum, convexly narrowing to 

 the pointed tylus,eyes moderately prominent,their outline conforming to the 

 margins of the head; antennae long, nearly equaling the length of body, 

 first joint short, not passing the tylus; second joint longer than third and 

 slightly thicker; fourth joint half as long as second, more slender than 

 third, slightly curved; rostrum exceeding middle coxte, first joint extend- 

 ing to border of buccula— remaining joints subequal, pronotum somewhat 

 tumid, narrowed to form a collar in front, mesosternum slightly convex 

 with marginal carinee and slightly produced on metanotum; metanotum 

 short, elevated laterally, carinate. Legs long, slender,cox£e strong. Abdomen 

 with first two segments constricted to form a pedicel, the first one strongly 

 elevated in a broad process in front and with an elevated posterior margin 

 and the pleura forming a sharp lateral elevated carina or lamina, the second 

 slightly wider behind, the lateral carina less prominent, remaining seg- 

 ments forming a globose, polished, minutely, sparsely haired body with 

 conspicuous pleural fold, and elongate carinate sheath for the ovipositor. 

 The ovipositor originates close to base of the globular portion of abdomen, 

 the sternal parts of segments beingextremely narrow and the sheath formed 

 from the sixth, seventh, and eighth sternites. 



Color brown, with the eyes, rostrum, apex of second joint and all of 

 joints three and four of the antennas, apex of tibias and the tarsi, fuscous or 

 blackish. The globose portion of abdomen and dorsum of second segment 

 are dark chestnut or piceous. The border of the ostea, a narrow posterior 

 margin on first abdominal segment, the posterior border of second abdomi- 

 nal segment except the dorsum, light yellow or white. 



Male. Head smaller, slightly more globose and eyes more prominent 

 than in female. Pronotum widened at base, the sides nearly straight, the 

 basal portion elevated and the posterior margin slightly concave. Scutel- 

 lum large, swollen in front with a transverse area and an impressed line on the 

 disc,the posterior portion carinate. Elytra broad, long, with a semi-transpar- 

 ent area at the basal half of the curium and another occupying basal part of 

 cuneus; mesoternum large, polished, ostea large and curved internally, 

 enlarged laterally and prominent. Legs slender. Abdomen very slender, 

 pedicelate, polished, minutely pubescent, scarcely one-third width of elytra 

 and extending about two thirds their length, the terminal ventral segment 

 narrowing posteriorly, strongly curved upward, dorsally tubular, the clas- 

 pers simple. 



Color: Head, basal part of antennas, anterior lobe of pronotum, scutel- 

 lum, clavus, posterior half of corium, pectus, femora and part of tibia, and 

 basal portion of abdomen testaceous or testaceo-ferruginous and polished 

 except the rather ferruginous parts of elytra. Joints 2, 3, 4 of antenna?, 

 apical portion of tibia, tarsi, cuneu-; except the base, and membrane of 

 elytra blackish, apical portion of venter piceous. The basal transparant 

 portion of elytra and a broad oblique band forming base of cuneus, the 

 border and inflated exterior portion of ostea and posterior margin of second 

 abdominal segment, white. 



17 [la. Acad. Sci., Vol. v.] [July 20, 1898.] 



