TINGIDINA. 23 



in front into a short, obtuse spine. Ocelli small, distant, inserted 

 close to the anterior margin of the pronotum. Rostrum reaching to 

 the first pair of coxa, lying in a channel. Pronotum subquadrate, 

 convex, with 2 or 3 central keels. Scutellum small. Elytra: 

 Clavus and Corium subreticulate, with strong nerves ; Membrane 

 subreticulate at the base, with 4 nerves. Sternum with a central, 

 shallow channel widened and flattened on the metasternum. Legs 

 short, unarmed ; tarsi (apparently) 2-jointed. 



Abdomen broad at the apex ; beneath, in the $ , the first four segments 

 on the posterior margin straight, on the fifth concave ; the sixth segment 

 in the centre convex, with a rather deep, rounded excision on the pos- 

 terior margin, which is filled in a line with the rest of the segment pos- 

 teriorly, by the single, convex genital segment. In the $ beneath, the 

 first five Abdominal segments are like those of the $, except that the fifth 

 on its posterior margin is more angularly cut out ; the sixth segment is 

 but slightly convex, is cleft, but not opened in the centre, and the pos- 

 terior margin has in the centre a small notch from which the margin is 

 rounded off on each side. The Genital segments are very short, and lie 

 close together in a transverse line. In the middle the two narrow plates 

 of the first segment meet ; on each side next outwardly are the small 

 plates of the third segment, and then the larger plates of the second 

 segment. Gen. 1, Zosmoms. 



This family, as Mor remarks, forms a perceptible transition between 

 Lygceina and Tingidina, but, by the structure of the abdomen, ia 

 more nearly related to the former than to the latter. 



SECTION 6. TINGIDINA. 



Membranacei, p., Lat., Burm. 

 Tingides, Am. et Serv. 

 Tingidae, Westw. 

 Tingidites, Lap. 

 Tingididae, Fieb. 

 Tingididea, Flor. 



Antenna 4-jointed. Ocelli 0. Scutellum wanting or rudimentary, 

 replaced by the angulated projecting hinder portion of the pronotum. 

 Elytra reticulated and of one, uniform, thin substance throughout. 

 Tarsi 2-jointed. 



Abdomen: in the ?, the sixth abdominal segment, on the underside 

 widening at the sides, but its posterior margin in the middle is produced 



