34 TAPSINA. 



nostrum reaching to the end of the mesosternum. Pronotum tra- 

 peziform, with two callosities in front. Elytra longer than the 

 abdomen ; Corium flattish convex. Gen. 1, Ilarpocera. 



Family 16.— MYRMICOCORIDtE. 



In developed examples elongate, slightly oval; in undeveloped 

 examples broadly oval posterioi'ly. Head pointed, vertical in front ; 

 Croivn convex; Glypeus very convex. Anfennce shorter than the 

 body ; second joint two and a half times as long as the first ; fourth 

 compressed on the sides. Eyes large, prominent. Eostrum reaching 

 to the first abdominal segment. Pronotum longish trapeziform, with 

 a collar and two callosities in front ; in undeveloped examples the 

 callosities are generally formed into one, and occupy the entire width 

 of the pronotum. Scutellum triangular, equilateral. Elytra fre- 

 quently with Cuneus and Membrane wanting; Corium very convex, 

 when developed flattish convex, constricted before the middle. Gen. 

 1, Myrmicocoris. 



Family 17.— LOPID^. 



Elongate, almost parallel. Head vertical in front ; Croion flat, 

 horizontal ; Clypeus convex. AntenncB as long as the body ; second 

 joint a little more than twice as long as the first, slightly thickened 

 to the apex ; third and fourth filiform, together as long as the 

 second. Eyes large, prominent. Postrum reaching to the end of 

 the metasternum. Pronotum trapeziform, with a collar and two 

 callosities in front ; sides margined to behind the callosities. Scu- 

 tellum triangular, equilateral ; the anterior portion almost or entirely 

 concealed beneath the posterior margin of the pronotum. Elytra 

 longer than the abdomen ; Corium flattish convex. Gen. 1, Lopus. 



Family 18.— DICHROOSYCTIDJE. 



Elongate, almost parallel. Head long, pointed ; viewed from tlie 

 side, the croion, clypeus, and face, form a continuous curve. An- 

 tenncB shorter than the body ; second joint more than three times 

 the length of the first, scarcely thickened to the apex ; third and 

 fourth filiform, together a little shorter than the second. Eyes 

 large, prominent. Rostrum free, reaching to the second or tliird 



