86 Mr. C. 0. Waterhouse's Monograph, 8fc. 



blue, witli four fine costge on each, and witli the intervals 

 filled with shallow square punctures disposed in double 

 rows. Body beneath black. Legs black, excepting the 

 coxse and basal two-thirds of the thighs, which are red." 

 S 5 lin., $ 7 lin. [Extract.] 



Met7\ nigripes, MacL., 1. c. p. 262. 



" This species differs from the last in having the head 

 only lightly impressed on the median line, and not nitid, 

 in having the thorax more rounded at the posterior angles, 

 and black only on the basal portion of the middle, in 

 having the elytra of a darker red and more deep punctua- 

 tion, and in having the legs entirely black." 



Long. 5 lin. 



Metr. marginicoUis, MacL., 1. c. p. 263. 



" Black. Antennae strongly dentate. Thorax seven- 

 hollowed, with the lateral margins yellowish-red. Elytra 

 yellowish-red, foiu^-costate, with the intervals rather con- 

 fusedly punctate in double rows, and towards the apex 

 appearing to consist of single rows of transverse punctures. 

 Legs and under surface of body entirely black." 



Lona:. 4 lin. 



The following species has just been received; it should 

 be placed next to P. inquinulum. 



Porrostoma dichroum, sp. n. (PL II. figs. 86 — 87.) 



Nigrum, opacum, thorace lato, excavato, triareolato, 

 areola mediana lanceolata; elytris sordide flavis, apice 

 nigris, quadricostatis, interstitiis biseriatim punctatis. $ . 



Long. 5 lin. 



Thorax broad, sides much reflexed, the central areolet 

 not reaching the anterior margin, but joined to it by a 

 short carina. Elytra parallel, dirty yellow, with the apical 

 third black; each elytron with four strong costge, the 

 interstices with two regular rows of distinct quadrangular 

 punctures, the rows divided by a very fine ridge. Body 

 beneath shining black; legs dull. 



Hab. — Kins: George's Sound. Brit. Mus. 



