HEMIPTERA. 313 



a distinct impunctate, central longitudinal line. Coriaceous por- 

 tion of the elytra thickly and rather finely punctured with black ; 

 membrane transparent, brownish, with the nervures pale brown, 

 reticulated. Body beneath testaceous or pale yellowish brown, 

 thickly and rather finely punctured with black ; ventral keel im- 

 punctate. Legs testaceous, covered with black points of various 

 sizes. Rostrum testaceous. Antennae with the two basal joints 

 testaceous, with a few black points ; third joint ferruginous, with 

 the base testaceous; fourth and fifth entirely ferruginous. 



a. Columbia. From M. Goudot's Collection. 



b. Venezuela. From Mr. Dyson's Collection. 



c. Columbia. 



Family 13. UROSTYLID.E. 



Antennae of five joints, with the basal joint much longer than 

 the head. Rostrum short, scarcely passing the anterior coxae ; 

 basal joint enclosed in a canal. Head small, with the central lobe 

 as long as the lateral, the lateral margins not trenchant ; an- 

 tenniferous tubercles exserted. Sexual organs generally more 

 or less produced. Apertures of the odoriferous apparatus spi- 

 nous. Breast without a canal. 



TABLE OF GENERA. 



I. Ocelli present. 



A. Basal joint of the antennae nearly as 



long as the head and thorax ; anten- 

 nae very slender 2. UROSTYLIS. 



B. Basal joint of the antennae not twice 



the length of the head, much shorter 

 than the head and thorax; antennae 



stouter 1. UROCHELA. 



II. Ocelli wanting 3. UROLABIDA. 



Genus 1. UROCHELA. 



Urochela, Dallas, Ent. Trans, n. s. i. 2 (1850). 

 1. UROCHELA bimaculata, n. s. 



U. supra grisea, nigro-punctata, subtus fulva ; elytris albidis, ma- 

 cula media fusca; antennis nigris, articulo basali griseo, 4to 

 5toque basi flavis. ? . 

 Long. lin. 6j. 



Head, thorax and scutellum brownish grey, thickly and finelv 

 punctured with black. Head with two black streaks on the 

 vertex. Thorax with the lateral margins considerably waved. 

 Coriaceous portion of the elytra whitish, finely punctured with 



