244 FAMILY VI. — COREIDjE. 



entire, projecting beyond the scoop-shaped genital plate in 

 male, in female narrowly produced, emarginate, and, in con- 

 nection with the apical angles of the two preceding segments, 

 causing the apical third of abdomen to appear coarsely serrate. 

 Twelve species are recognized by Stal (1870, 184) as occur- 

 ring in tropical America, two of which extend northward into 

 this country. One is found in the eastern states. 



175 (290). Margus obscurator (Fabricius), 1803, 200. 



Oblong or oblong-oval, depresed above, subconvex beneath. Dull 

 grayish-yellow thickly marked with small fuscous punctures; antennas 

 reddish-brown, the basal and terminal joints slightly darker; margins of 

 pronotum and connexivum and nervures of elytra sprinkled with fus- 

 cous dots ; membrane bronzed-brown ; dorsum of abdomen wholly or in 

 great part black; under surface and legs greenish-yellow sprinkled with 

 reddish dots, the sides of ventrals 1 — 5 each with a small round black 

 spot. Antenna? with basal joint stout, curved, granulose, subcylindrical, 

 narrowed at base, two-thirds or more the length of head ; 2 and 3 slender, 

 subequal ; 4 stouter, fusiform, two-thirds the length of 3. Outer side 

 of antenniferous tubercles with apex acutely produced. Pronotum with 

 disk finely, evenly, not densely punctate, the humeri slightly tuberculate 

 within. Scutellum and elytra similarly punctured, each puncture bear- 

 ing a minute rounded yellowish scale. Other characters as under tribal 

 and generic headings. Length, 9 — 11 mm.; width, 3 — 3.7 mm. 



Ormond, Moore Haven, Sarasota and Dunedin, Fla., Feb. 6 — 

 April 27. Recorded from five additional stations between Big 

 Pine Key and Jacksonville, and probably occurs sparingly along 

 or near the coasts of the State. It was originally described 

 from Rio Janeiro and the first specimens known from the 

 United States were taken by me from flowers of thistle and 

 Senecio at Ormond, Fla., and recorded (1902, 225) as Margus 

 inornatus Stal, it having been so identified for me by Van Duzee. 

 About Dunedin it occurs in some numbers in early spring on 

 tall grasses and low shrubs in old fields and open pine wood- 

 lands and is also occasionally taken at light. Van Duzee 

 (1909, 160) found it "not uncommon on sedges and grasses on 

 the marshy meadows of Lake Monroe at Sanford, and under 

 similar conditions at Crescent City and St. Petersburg." In 

 general appearance it resembles superficially some of our more 

 common species of Harmostes. 



III. Catorhintha Stal, 1859, 470. 



Small or medium sized oblong glabrous species having the 

 head subquadrate, calloused behind the eyes, broader across 



