HEMIPTERA. 211 



* Thorax with the lateral spines directed outwards at the apex 

 lateral angles sometimes unarmed. 



a. Second joint of the antennce as long or longer than the third. 

 1. MORMIDEA ypsilon. 



Cimex ypsilon, Linn. S. N. i. 720. 32 (1767); Fab. E. S. iv. 



98. 72 (1794) $ S. R. 159. 21 (1803); H. Sch. Wanz. iv. 20. 



t. 116. fig. 368 (1839). 

 Cimex ypsilon-seneus, DeGeer, Mem. iii. 332. 6. pi. 34. fig. 7 & 8 



(1773). 

 Pentatoma ypsilon, Le P. fy Serv. Enc. x. 56. 16 (1825) ; H. Sch. 



Wanz. vii. 95 (1844). 

 Mormidea ypsilon, Am. fy Serv. Hem. 135. 1 (1843). 



a. Para. From Messrs. Wallace and Bates's Collection. 



b. . From Mr. Children's Collection. 



MORMIDEA. inermis, n. s. 



M. praecedenti valde affinis, coloribusque similis, sed differt thorace 

 anoque inermibus; scutelli dimidio apicali pallido, fusco-punc- 



Itato, absque maculis marginalibus fuscis. $ . 

 Long. lin. 4. 

 a. Honduras. From Mr. Dyson's Collection. 



3. MORMIDEA collaris, n. s. 



'.. thorace acute spinoso, supra nigra, punctata ; capite, thoracis- 

 que margine antico, flavis, nigro-punctatis ; thorace margini- 

 bus lateralibus maculisque 2 anticis, scutello maculis 2 magnis 

 alteraque parva baseos, apiceque, punctoque in singulo elytro, 

 flavis, impunctatis ; corpore subtus flavo ; pedibus fulvis ; an- 

 tennarum articulo secundo tertio longiori. $ . 

 Long. lin. 4J. 



Above black, shining, slightly brassy. Head yellow, thickly 

 and finely punctured with black. Eyes brown ; ocelli red. Tho- 

 rax thickly and finely punctured, with the lateral angles acutely 

 spinous ; anterior margin yellow, finely but irregularly punctured 

 with black ; the lateral margins edged with yellow and impunc- 

 tate, and with two small round, impunctate yellow spots on the 

 disc towards the anterior margin. Scutellum rather thickly and 

 finely punctured, with a large spot occupying each basal angle, a 

 smaller one in the centre of the base, and the apex, yellow, im- 

 punctate. Coriaceous portion of the elytra more strongly punc- 

 tured than the rest of the surface, with a small round, yellow, 

 impunctate spot on the disc behind the middle; membrane 

 brownish, semitransparent. Margins of the abdomen yellow. 



