268 ENTOMOLOGICAL NEWS. [June, *I2 



facetted, no ocelli. Antennae with bristly hairs, about 25-joint- 

 ed, last thirteen joints shorter than others, scape thickened, 

 Mandibles strong, combining certain characters of Troctcs and 

 Pcripsocus. Maxillary forks trifid, long, not stout, slightly 

 curved (see figures 2 and 3). Maxillary palpi 4- jointed, much 

 like those of Peripsocus calif ornicus; the terminal joint flatten- 

 ed, spatulate, truncate and widened apically. Labial palpi 2- 

 jointed, the terminal joint appearing somewhat flattened. 

 Oesophageal sclerite and lingual glands rather similar to those 

 of P. calif ornicus. 



Neck serrate above in profile, showing about eight or more 

 notches and teeth. Prothorax reduced, shortened and nar- 

 rowed; mesothorax and metathorax successively larger, both 

 very high, about as wide as base of abdomen ; all three di- 

 visions of thorax short. Nymph with abdomen and thorax 

 quite same as in adult, and hardly to be described as thysanu- 

 riform. Larva and nymph not so bristly as adult, and show- 

 ing no anal cerci. One adult shows a globular bladder-like sac 

 attached to venter. 



Wings (anterior) hemelytral both in appearance and func- 

 tion, about three times as long as wide, with strong heavy 

 veins and complete strong costa extending entirely around bor- 

 der, appressed to the abdomen which they cover except anal 

 end when abdomen is much swollen. One closed basal and 

 one discal cell present; five longitudinal veins. Nymph with 

 wings pad-like; larva without trace of them. Venation faintly 

 visible in nymph. 



All the tibiae with a pair of apical spurs. Tarsi 3-jointed, 

 with a terminal pair of claws. The first tarsal joints not so 

 strongly elongate in nymph as in adult. A pair of minute 

 short spines on inside of middle of last tarsal joint of both 

 larva and nymph shows where the joint becomes divided in 

 adult into two joints. 



Other characters as given above under family heading. 



Type, the following new species: 



