164 CCECIGENINA. 



apex, the 2nd rather longer than the 1st, the 3rd about l 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. Ei/es moderate, 

 prominent, but not projecting laterally beyond the anterior margin of 

 the pronotum. Bostrum reaching to the hinder coxee, 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 ; Chivies on the same 

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

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

 solete ; Metixbrane (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, 

 Mesostemum 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 tlie 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 ; Connexivuvi broad, almost vertical. Under- 

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

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

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



Species 1. — Pyrrhocoris apterus. 



CiMEX APTERUS, Llji. S. N. 727, 78 (17C7); De Q. Mem. 181, 20 



(1773). 

 LYG.EUS — Fab. S. E. 227, 16 (1803) ; Wolf, Ic. Cim., 108, 



t. 11, fig. 102 (1811). 

 Platynotus apteeus, Schill. Beitr. 57 (1829) ; Ilahn, "Wanz. i, 19, 

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

 32 (1845). 

 Pykehocokis calmaeiensis, Full. Hem. Suec 45, 1 (1829). 



