241 



with a long, slightly curved, strong spine from each ventral 

 corner reaching more than half across pygophor; styles broad and 

 flattened on basal half, the apical portion thinner, bent inward with 

 the apex broadened out into a small, flat surface, the outer and 

 posterior edges of which are produced into short points. 



Length 2.7 mm. ; tegmen 3.6 mm. 



Ilab. Island of Guam, on sugar-cane. !No. 3095 of Mr. D. 

 T. Fiillaway's collection. I take the pleasure of naming this 

 insect after Mr. J. B. Thompson of Guam. 



This species, the fourteenth of the genus, comes next to 

 sinensis from which it differs by the greater amount of infusca- 

 tion on apex of tegmen and the very distinct genitalia. 



Stohaera Stal. 



I consider Fowler's Goniolcium to be this genus. The spe- 

 cies of this genus all have somewhat similar f acies, and with the 

 additions to it that is sure to be made by more extensive collect- 

 ing in Mexico and the more southern countries, there will arise 

 great difficulties in identification unless the male characters be 

 studied carefully. 



(1) S. concinna? Stal. 



Specimens from Mexico Valley agreeing with Stal's description 

 have a very distinct feature in the shape of the anal segment. The 

 anus is situated near the base, where the segment is short; beyond 

 the anus the ventral edge is produced into a broad, flattened process, 

 turned down at right angle to the basal portion, the apex being spatu- 

 late and trilobed, the process reaching down to the ventral wall of 

 pygophor; the medio-ventral edge of pygophor slightly emarginate, 

 each corner of the emargination being produced into a small spine, 

 the lateral edges cut back so as, in side view, to expose the styles; 

 styles slender and cylindrical at base, slightly broadening to the trun- 

 cate apex which has each corner produced into a little spine; a spine 

 projects from the base of the styles. 



(2) S. tricarinata Van Duzee. 



The specimens I identify as this species have the ventral edge 

 of pygophor roundly emarginate in the middle, the sides being cut 

 away, exposing the styles in lateral view; anal segment short with a 

 short downwardly turned, apically rounded process on the ventral 

 edge; styles thinly cylindrical at the base, broadening and flattening 

 towards the apex, which is truncate and produced into a spine on the 



