444 BRITISH GENERA, IN THE 



Gen. III. — Sericothrips. 



Corpus lesve coriaceum, abdomine tomentoso, ano in mare ei 

 femina conformi conico: alee abbreviates : caput ad oculos 

 usque immersum : antennce stylus brevis biarticulatus. 



Sp. 1. Ser. staphyinus. Mas et Fem. 



Opaque black, with the abdomen silky. Second and third joints of 

 the antennae and the legs, pale ferruginous ; the base of the thighs 

 dusky. Elytra round, shorter than the pterothorax, white, with 

 the base blackish. 



Inhabits the flowers of Ulex Europesa in plenty. Is exces- 

 sively active in running and leaping. 



Gen. IV. — Thrips. 



Corpus Iceve aut subtiliter squameum, glabrum : caput pone 

 oculos productutn, collo non inciso. 



Synoptic Table of Subgenera. 



A. No simple eyes .... Subg. III. Aptinothrips. 

 A A. Three simple eyes. 



B. Prothorax in front produced, narrowed Subg. I. Chirothrips. 

 BB. Prothorax of equal breadth. 



C. Last segment armed with 2 dorsal spines in female. 



Subg. II. Limothrips. 

 CC. Last segment unarmed. 



D. Style of antennae longer than 6th joint. Subg. V. Belothrips. 

 DD. Style shorter than 6th joint. . . Subg. IV. Thrips, propr. 



Subgen. I. — Chirothrips. 



Caput perparvum : prothorax antrorsum attenuatus : pedes 

 antici perquam incrassati : antenna; breves compressce, 

 stylo biarticulato. 



Sp. 1. Thr. Ch. manicata. 



On spikes of grass. 



Subgen. II. — Limothrips. 

 Prothorax aiquilatus: antennce stylus biarticulatus, articulo 



6 t0 . brevior: ocelli tres: alee femina? complete, maris nulla, 



Feminae segmenia posteriora spinosa. 

 Thrips spp. Auct. 



