oif) [September, 



b. Antenna with three ■vrell-deTeloped joints; ocelli not in two 



distinct groups Suhfam. Tf.lp:phaninae. 



2. Cerci present Fam. Cccujidae. 



a. Tenth abdominal segment long, conical, extending far behind ninth 



segment Suljfam, Hyliotixaf.. 



b. Tenth abdominal segment short, wart-shaped, not extending behind 



ninth segment Subfam. Cxjcujijtak. 



B. Maxillary mala (possibly galea) obtuse, with or without well-defined uncus, 

 which when present is laterally placed on inside of mala (i)ossibly 

 terminating a reduced laciniaj Fam. Laemophloeixae. 



The genera of Silvaninae are defined by their larval characters thus : 



1. Second antennal joint as long as head Cathartus IJeiche. 



2. ,, „ ., half the length of head. 



a. Mandible apically quadrifid ; individual ocelli in each group well 



separated ; bodv well chitinized, with dark brown chitinous shields 



IS'ausibius Redt. 



b. Mandible apically trifid : individual ocelli in each group almost con- 



fluent : body thinly chitinized, with pale yellowish shields, 

 ft' ^laxillary palp with length of basal, second and apical joints as 



1:1:2 SiLVANUS Latr. 



b' Maxillary palp with length of basal, second and apical joints as 



\ •.2:2 Oryzaephilu.s Ganglb. 



[type Silcanns surinamensis L.] 



The Cv.cujidae include Hyliota [Uleiota] Latr. = Bboxtes F., Dendeo- 

 PHAGrs SchiJoh., Peuiacu.s Shuck., and Psammoecus Latr. — G. C. Chajipiox, 

 Horsell : July 1922. 



Notes on Pentatoma {Tropicoris) nijipes L. — The accompanying notes were 

 commenced during, and continued on my return from, a holiday in Hampshire, 

 and I had not yet seen the current number of " Entomologist's Monthly 

 Magazine," and in view of Mr. A. E. Butler's article, I thought they might 

 be of interest : — 



Juhj 7th, 1922. Eight immature full-sized specimens of P. rnjipes were 

 swept from birch at Hengistbury Head, Hants, and put into a glass bottle 

 with some leaves. For some time they lay one on top of the other, or walked 

 over each other quite unconcernedly. "When, however, a small green weevil 

 walked over one, it strongly resented it, jerking quickly from side to side to 

 try and dislodge the weevil. 



July 10th. They are constantly on the move. At no time during the last 

 three days have I seen their rostrum elsewhere than lying flat against their 

 abdomen. Two of them have turned much paler in colour and have lost the 

 iridiscent sheen that all of them formerly had. 



Jiily lith. Noted that the rostrum of one bug was inserted into stem of 

 birch-leaf continuously for over an hour. 



July 15th. On my arrival home, examined bugs and found that one had 

 cast its final skin and had complete elytra, but had incurred some damage to 

 the scutellum, which was wet. One leg of the middle pair was also absent. 



