March. I90I.] CaUDELL : ThE GeNUS SlNEA OF AMi'OT ct^ SERriLLH. 9 



Habitat : Central America. Type Brit. Mus. 



This Central American species is very closely allied to 6". raptoria 

 but the males may by separated by the apex of the abdomen as given 

 in the table of species. The females are practically inseparable. The 

 tubercles on the anterior lobe of the prothorax are somewhat more 

 acute in caudata than in raptoria. The author had before him five 

 males and six females. 



Sinea raptoria Stdl. 



(Plate I, Fig. 6.) 

 Sinea raptoria Stal, Stett. Eot. Zeit., XXIII, 1862, p. 444 ; Walker, Cat. Hemip. 

 Heter. Brit. Mus., VIII, 1873, pp. 138, 139; Uhler, Bull. U. S. Geol. & 

 Geog. Surv. No. 5, 2d Ser., 1876, p. 61; Check List Hemip., 1886, p. 23; 

 Leth. & Severin, Cat. Hemip., Ill, 1896, p. 199 ; Hubbard, Supp. Psyche, 

 1899, p. 6 ; Champion, Biol. Cent. Amer. Rhync, II, 1899, p. 293. 

 Sinea denticidosa Stal, Enum. Hemip., II, 1872, p. 70; Leth. & Severin, Cat. 

 Hemip., Ill, 1896, p. 198. 



Length, 8-1 1 mm. Anterior prothoracic lobe armed with short conical tubercles. 

 Posterior lobe unarmed, convex on the disk. Abdomen entire, not caudate, sub- 

 truncate at apex. 



Habitat : United States, Mexico and Central America. Types, 

 Mus. Holm, and Coll. Sign. 



Mr. Champion established the synonymy oi denticulosa with raptoria 

 by critically comparing their respective types and finding them in- 

 separable. 



This species is closely related to caudata and sanguisuga, but may 

 be separated from them by characters given in the table. The males 

 are necessary for a correct determination. 



Raptoria is common to the United States, Mexico and Central 

 America, but with us it has been recorded only from the western 

 States. 



Sinea sanguisuga Stdl. 



(Plate I, Figs 7 and 8). 

 Sinea sangusuga Stal, Stett., Ent. Zeit., XXIII, 1862, p. 444; Enum. Hemip., 



II, 1872, p. 71 ; Walker, Cat. Hem. Het. Brit. Mus., VIII, 1873, p, 138, 

 139; Uhler, Check List Hem., 1886, p. 23 ; Leth. & Severin, Cat. Hemip., 



III, 1896, p. 199; Champion, Biol. Cent. Amer. Rhync, II, 1899, p. 294. 

 Length 10-13 mm. First pair of anteocular spines usually twice as long as the 



third pair. Thorax as in raptoria. Abdomen entire, outer angles of the fourth seg- 

 ment sometimes prominent or subdentiform, especially in the male, where sometimes 

 the fifth segment is also slightly prominent. Segments four and basal half of segments 

 five and six usually of the same color as the rest of the abdomen, sometimes slightly 

 darker. 



