MIMICRY AMONGST THE BLATTIDyE. 371 



Total lengfcli 9-5 mm. ; length of teginina 7-9 mm. ; nronotum 

 3 mm. X 5 mm. 



Philippine Is. (Stockholm Mus., t?/pe, coll. Semper). 



This species is a good mimic of Pr'ioptera sinuaia Oliv. (Cassi- 

 rlida?), an.l it is highly probable that a Coccinellid and perhaps a 

 Uuysomelid nlso enter into mimetic relationship with these 

 forms. (PI. XLVIII. fig. 8.) 



Prosoplecta semperi, sp. n. (PI, XLVIII, fig. 13.) 

 $ . Differs from P. nlyroplagiata in the following details •— 

 Size larger and broader; the general ground colour is rufous- 

 there are only six macuhe on the disc of the pronotum the 

 anterior pair being suppressed ; on the tegmina there are no 

 lines joining any of the maculcB, the macula? are as in nlgro- 

 plagiata; there is an ellipsoidal piceous marking on the imt of 

 the right tegmen overlapped by the left; the disc of the sub- 

 genital lamina is suffused with castaneous. 



Total length 10-5 mm. ; length of tegmina 7'8 mm, ; pronotum 

 J mm. X 5-8 mm. 



Philippine Is. (Stockholm Mus., ti/jye, coll Semper). 



Mimics Leis dunlopi Crotch (Coccinellida;), (PI. XLVIII. fig. 1 5.) 



Prosoplecta ligata Br. 



Cassidoiles ligata Bruniier von Wattenwvl, Xouv Svst B1«ft- 

 p. 262, pi. vi. fig. 28 (1865). ' -' ' 



The species is known to me only from the description which 

 It is unnecessary to reproduce, since it occurs in the vade-inecum 

 of all students of the Blattidfe. 



Philippine Is. (Stettin Mus., t>/pe). 



Prosoplecta rufa Kirby*. (PI. XLVIII. fig, 16.) 



Prosoplecta rufa Kirby, Ann. Mag. Nat. Hist. (7) xii i. 379 

 (1903). W li- I- '^'^> 



This species is known to me only from the description, which I 

 ti'anscribe : — 



'■ Long. Corp. cum tegm. 9 millim. ; lat. 5 millim. 



'' Female. —Light red, the tegmina somewhat darker, Pro- 

 notum smooth and shining, with the front border narrower than 

 the hmd border, transversely oval, with broad borders of sub- 

 hyaline yellow covering the rounded off lateral angles, and the 

 hind border yellow. Tegmina with the costal margin subhyaline 

 yellow, a small yellow spot near the base, and aiiother at one 

 third of the length, both near the costa ; between the second and 

 the inner margin is a much larger, transverse, oval, yellow spot 

 Base of tegmina blackish. Wings, and a great portion of the 

 middle of the abdomen beneath., as far as the base of the terminal 

 segment, black." 



Philippine Islands, Mindanao (British Mus., tt/pe). 



* It is probable that P. rufa is identical with P. hipunctata, a discovery made 

 long after this paper was ,n the press. The extreme difficulty under which the paper 

 was written must l)e my excuse. ' i "i ^' 



24* 



