260 FAMILY VII. CORISCID;£. 



190 (316). Leptocorisa tipuloides (De Geer), 1773, 354. 



Elongate, very slender, subdepressed above, convex beneath. Pale 

 dull yellow; antennae greenish- or reddish-yellow, the tips of joints 2 — 4 

 darker; inner raised margin of clavi and membrane in front of the cross 

 nervure, more or less fuscous; legs greenish-yellow, the femora reddish on 

 apical fourth ; tarsi and tip of beak tinged with fuscous. Head about 

 two-thirds the length of pronotum; antenna? with joints 2 and 3 subequal, 

 4 longer, subequal to 1. Pronotum with humeri rounded, not prominent, 

 feebly tuberculate at each end of the basal impression; disk with front 

 portion almost smooth, the basal two-thirds coarsely confluently punc- 

 tate. Scutellum elongate-triangular, both it and clavi coarsely and rather 

 closely punctate. Corium very sparsely punctate, its apical margin ex- 

 tremely long and sinuate. Abdomen with sides parallel throughout. 

 Genital plate of male scoop-shaped. Sixth ventral of female produced be- 

 hind as a large flat median lobe. Length, 14 — 16 mm.; width, 1.8 — 2 mm. 



Dunedin, Lakeland and Ft. Myers, Fla., Nov. 20— March 20 

 (//'. S.B.). Agricultural College, Miss. (Weed). Recorded from 

 numerous stations throughout eastern and southern Florida. 

 It is a Central and South American species, known heretofore 

 in this country only from Florida and Texas. About Dunedin 

 it is common in autumn and early spring on ferns in wet dense- 

 ly wooded hammocks. The body is more slender and parallel 

 than in any other of our eastern Coriscids. 



Tribe III. CORISCINI 4 ' nom. nov. 



The members of this tribe are somewhat stouter and have 

 the head broader and pronotum shorter than in the two pre- 

 ceding tribes. They also have the eyes more convex and promi- 

 nent ; cheeks shorter than tylus ; hind femora stouter and 

 armed beneath with prominent spines. 



Six genera are known from North America, all of which are 

 represented in the eastern states. 



KEY TO EASTERN GENERA OF CORISCINI. 



a. Hind tibiae compressed, strongly curved, the tip ending in an acute 

 spur; humeri ending in a prominent suberect acute spine. 



I. Hyalymenus, p. 261. 

 aa. Hind tibiae straight, terete, without a spur at apex. 



b. First joint of antennae surpassing apex of head; osteolar opening 

 distinct, located between the middle and hind coxae, prolonged out- 

 wardly as a canal. 

 c. Second joint of antennae shorter than first; sixth ventral of female 

 slit along the median line. 

 d. Pronotum longer than wide, the sides converging toward apex; 



,5 .\'ew tribal name for Alydini Stal. 



