164 CCECIGENINA. 



apex, the 2nd rather longer than the 1st, the 3rd about \ the length 

 of the 2nd ; the 4th larger than the 3rd, but not so long as the 1st, 

 of the same thickness throughout, the apex excepted. Eyes moderate, 

 prominent, but not projecting laterally beyond the anterior margin of 

 the pronotum. Rostrum reaching to the hinder COXSB, the 1st 3 joints 

 in length subequal, the 1st as long as the head, the 4th shortest. 



Thorax. Pronotum trapezoidal; the anterior margin slightly 

 concave, greatly incrassated, widest in the middle ; lateral margins 

 reflexed ; posterior margin straight, hinder angles subacute ; disk 

 flat, or with a broad transverse elevation on the first half, not extend- 

 ing to the sides. Scutellum large, triangular ; basal angles depressed, 

 sides slightly concave, apex acute. Elytra flat ; Clavus on the same 

 plane as the Corium; Corium, anterior margin gradually rounded, 

 vertically reflexed, more strongly on the 1st half; the nerves ob- 

 solete ; Membrane (in all British examples) rudimentary ; when 

 developed it has (according to Herrich-Schaffer, * Wanz.' ix, 173) " 2 

 somewhat regular cells in the middle of the base, from which 8 

 irregular forked nerves spring." Sternum without rostral channel, 

 Mesosternum with a central keel. Legs strong ; thighs small at the 

 base, gradually thicker upwards, but constricted slightly at the apex, 

 the 1st pair thickest, the 2nd pair thinnest, beneath minutely den- 

 tate, more strongly on the 1st pair ; tarsi; on the 1st and 2nd pairs 

 of legs the 1st joint as long as the other 2 ; on the 3rd pair it is 

 much longer. 



Abdomen above flat ; Connexivum broad, almost vertical. Under- 

 side very convex ; in both sexes the posterior margin of all the seg- 

 ments, except the 6th, sinuate ; on the 6th straight. Genital seg- 

 ments as stated under the head of the Family at p. 20. 



Species 1. PYRRHOCORIS APTERUS. 



CIMEX APTERUS, Lin. S. N. 727, 78 (1767); De G. Mem. 181, 20 



(1773). 

 LYG^US Fab. S. R. 227, 16 (1803) ; Wolff, Ic. Cim., 108, 



1. 11, fig. 102 (1811). 



PLATYNOTUS APTEKUS, Schill. Beitr. 57 (1829); Hahn, Wauz. i, 19, 

 t. 3, fig. 11 (1831) ; Kolen. Mel. Ent. ii, 69, 

 32 (1845). 

 PYRKHOCORIS CALMARIENSIS, Fall. Hem. Suec. 45, 1 (1829). 



