knowledge, of Oriental Rhynchota. 845 



The second joint of the antennae is a little shorter than the 

 third (remainder mutilated) ; the rostrum just passes the posterior 

 coxa?, and the membrane extends considerably beyond the apex of 

 the abdomen. 



I have only seen one specimen of this distinct and 

 beautifully-marked species. 



Dolycoris formosana, n. s. 

 Allied to D. indicus, Stal, from which it differs by its larger 

 size ; the connexivum unicolorous, not spotted with black ; the 

 corium purplish brown ; apices of the femora spotted with black, 

 and apices of the posterior tibiae of the same colour ; the puncta- 

 tion is also somewhat coarser and deeper. Long. 18 mm. 



Hab. Formosa (coll. Dist.). 



Scylax, n. g. 



Head very large, flat, and long, the lateral lobes very much 

 longer than the central, slightly concave, obtusely pointed at apex, 

 and cleft at apex in female, but apparently coalesced in male. Pro- 

 notum with the lateral angles very strongly produced forwardly into 

 robust obtuse spines (in the typical species these spines have their 

 apices parallel to the eyes) ; anterior margin concave for the 

 reception of the head, the anterior angles minute and truncate ; 

 posterior margin straight, oblkrue from basal angles of scutellum 

 to lateral angles. Scutellum short and broad, not extending much 

 beyond base of membrane ; the lateral margins obliquely directed 

 inwardly to about middle, and then straight to near apex, which is 

 broadly rounded. Corium short, not reaching apex of scutellum. 

 Membrane with prominent reticulated veins. Rostrum long, about 

 reaching the posterior coxa?. Antenna? inserted beneath the head 

 in front of eyes, second joint barely reaching apex of head. 



I place this genus near DichclocepJtata, to which it 

 has affinities though not resemblance. It has somewhat 

 the facies of Macrina, in so far as the pronotal angles 

 are examined, but that it does not belong to the subfam. 

 Phylloccplialina is proved by the length of the rostrum. 



Scylax porrectus, n. s. (PL XII. , fig. 7). 



Body above ochraceous. Head, pronotum, and scutellum some- 

 what thickly punctate ; pronotum with two short transverse and 

 one central short longitudinal levigate linear spots ; scutellum with 



TRANS. ENT. SOC. LOND. 1887. PART III. (SEPT.) 2 B 



