28 



CATALOGUE OF 



XX Fore femora unarmed. - - - - 



J+ Three exterior veins of the membrane joined by 

 the transverse veinlet. - 



The following Synopsis is an abbreviated translati 

 arrangement of the European species of the family. 



A. Antennae 3-jointed. - 



B. Antenna; 4-jointed. 



a. Fore auxiliary segments in the middle of the 



discal segments. - 



b. All the auxiliary segments inserted by the hind 



borders of the discal segments. 

 * Hooks of the areolets distinct, 

 •j- Hooks on the lower veins. Veins of the mem- 

 brane springing from its base, the two inner 

 veins from one areolet, or all the veins free. 

 X First joint of the hind tarsi much longer than the 

 second and third joints together, rarely 

 equalling them in length. 

 § Prolhorax in front with two transverse c«-forming 

 furrows. Membrane with one areolet at the 

 base of the two inner veins (Lygaeidea). 

 X Eyes truncated behind. - 



X X Eyes not truncated behind. 



o Ilostrum longer than the head beneath. - 

 oo Rostrum as long as the bead beneath, 

 -i- Fore femora with a little subapical spine, 

 -i — h Fore femora unarmed. 



++ Head transverse. First joint of the hind tarsi 

 as long as the second and third joints together. 

 +++♦ Head as long as broad. First joint of the hind 

 tarsi longer than the second and third joints 

 together. 

 & Scutellum in the middle with lateral furrows. - 

 «r<«7> Scutellum without furrows. - 



§§ Prolhorax in front without transverse furrows. 

 Membrane with four or five longitudinal straight 

 or curved veins. 

 X Prothorax contracted behind the middle; sides 



tumid. (Plociomera). 

 o Prothorax much longer than its hind border. 

 oo Prothorax as long as the breadth of its hind border. 

 XX Prothorax not contracted, or with the hind part 

 contracted beneath, 

 o Sides of the prothorax obtuse or concise. 

 -+■ Sides of the prothorax without keels. 

 ++ Prolhorai elongated. 

 icn Rostrum extending 10 the propectUB. 

 *cnun Rostrum extending to the middle of the meso- 



pectus. * 



*♦♦+ Prothorax trapeziform, short. 



Androoeob. 

 Lethceus. 

 on of Fieber's 



tritomacera. 

 Ibchnodkmus. 



Tetralaccus. 



Lygjeus. 



CjENOcoris. 



Arocatus. 



Lyceosoma. 



Nysius. 



Paromius. 

 Plociomekus. 



Pnouiatiis. 

 Ious. 



