,°»70 MR. ROBERT SHELFORD ON 



Total length 8'5 mm. ; length of tegmina 6'5 mm. ; pronotum 

 i! mm. x 3*5 mm. 



Philippine Is. (Stettin Mus., type ; Stockholm Mus., coll. 

 Semper}. 



This .species is also like a Chrysomelid. 



Prosoplecta trifaria Walk. (PL XLVIII. figs. 4 & 11.) 

 Prosoplecta trifaria Walker, Cat. Blatt. Brit. Mus. p. 190 

 (1868) [=rf]. 



Prosoplecta megaspila Walker, 1. c. (1868) [= $ ]. 



Very convex, bright ochreous with piceous maculae on pro- 

 notum and tegmina. 



J. Head and antennae ochreous, a blotch on the frons, the 

 labrum and apices of maxillary palpi, fuscous. Pronotum nitid, 

 impunctate, transversely elliptical, with four small piceous macula' 

 on the disc. Tegmina seriate-punctate, a line between the bases 

 of the radial and mediastinal veins, a short line above the 

 humeral angle (which is pronounced), the inner margin of the 

 left tegmen at the base, the portion of the right tegmen over- 

 lapped I >y the left and a round macula in the anal field, piceous. 

 Wings infuscated. Abdomen above and beneath and the legs 

 ochreous. Sub-genital lamina symmetrical with a median plica- 

 tion, posteriorly emarginate, styles minute. Cerci moderate. 



2 . Similar, but the piceous markings on the tegmina heavier, 

 and a large additional macula on the discoidal field beyond the 

 middle. The abdomen beneath is castaneous, and the sub-genital 

 lamina is very large and semiorbicular. 



Total length ( rf ) 9 mm., ($) 9-5 mm.; length of tegmina 

 ( cT ) 7'5 mm., ( 2 ) 8'1 mm. ; pronotum 3 mm. x 4 mm. 



Batchian (Oxford Mus., types, coll. Wallace). 



The male is an admirable mimic of Oides biplagiata, and the 

 female resembles a dark variety of the same insect (Chryso- 

 melidcc, subfam. Galerueinse). (PI. XLVIII. figs. 3 ct 10.) 



Prosoplecta nigroplagiata, sp. n. (PI. XLVIII. fig. 9.) 



5. Allied to P. trifaria, hut distinguished by the obsolescent 

 puncturation of the tegmina. Head rufous, vertex ochreous. 

 Antenna' very slender, ochreous, with the apex infuscated. 

 Pronotum ochreous, smooth, nitid. transversely elliptic, lateral 

 margins hyaline, eight piceous maculae arranged in a circle on the 

 disc, the anterior pair almost fused, one pair minute. Tegmina 

 ochreous. extreme base of mediastinal area hyaline, a macula at, 

 the base of the mediastinal area, a macula at the apex of the 

 same area, a line joining these, a round macula on the middle of 

 the anal vein, a cur\ed line running from this over the humeral 

 angle to the base of the tegmen, where there is anot her spot, t he 

 basal margin, a short line along the base of the sutural margin of 

 the right, tegmen, a large macula in the discoidal field beyond 

 the middle, all piceous. Wings infuscated. Abdomen beneath 

 rufo- castaneous, sub-genital lamina very large, semiorbicular. 

 Cerci and leys rufous. 



MM 



