162 HEMIPTERA. 



Pentatoma Bufo, Hope, Cat. 44 (1837). 



a. New Holland. Presented by Sir John Richardson, M.D. 



b. New Holland. Presented by the Entomological Club. 



2. MAZIUM rotundatum, n. s. 



M. rotundatum, fuscum, punctatum, thorace scutelloque basi ru- 

 gosis; thoracis, abdominis, elytrorumque marginibus, scutelli 

 punctis tribus punctoque in singulo elytro, femorum basi coxis- 

 que albidis. $ . 

 Long. liri. 3. 



Rounded, slightly pointed in front, brown, obscure. Head 

 thickly and finely punctured anteriorly, the posterior portion 

 somewhat rugose. Thorax strongly punctured, rugose ; lateral 

 margins yellowish white. Scutellum nearly equilateral, with the 

 apex broad and rounded ; thickly punctured, with the base ru- 

 gose ; a small dot in each basal angle and another at the apex 

 yellowish white. Coriaceous portion of the elytra thickly and 

 rather finely punctured, with the basal portion of the outer mar- 

 gin, and a minute point on the disc a little behind the middle, 

 yellowish white. Margins of the abdomen narrowly edged with 

 yellowish white, interrupted at the junction of each segment. 

 Body beneath deep pitchy brown. Coxae and base of the thighs 

 yellowish white, the tips of the thighs black ; tibiae brown, the 

 four posterior testaceous at the base; tarsi brown. Rostrum 

 with the two basal joints testaceous, the apex of the second and 

 the two apical joints pitchy brown. Antennae black. 



a. Kangaroo Island. Presented by the Entomological Club. 



Genus 9. MECISTORHINUS, n. g. 



Head longer than broad, rounded in front, with the apex 

 slightly emarginate, the lateral lobes meeting beyond the cen- 

 tral; the lateral margins nearly parallel, very slightly waved. 

 Antennae about half the length of the body, of five joints ; basal 

 joint short, not reaching the anterior margin of the head, stout- 

 est ; second and third joints longer than the first, about equal ; 

 fourth joint longer, fifth longest. Rostrum very long, reaching 

 beyond the apex of the abdomen, slender ; first joint shortest 

 and stoutest, rising from near the base of the head, and reaching 

 to the anterior coxae ; second joint longest, reaching the middle 

 of the third segment of the abdomen ; third and fourth joints 

 about equal, fourth thinnest. Canal of the under side of the 

 head distinct, not reaching the apex. Body ovate, somewha 

 depressed. Scutellum reaching beyond the middle of the abdo 

 men, with the apex broad and rounded. Coriaceous portio 

 of the elytra much longer than the membrane, with the apie 



