New Species of Ship/u/linidae from Singapore. 273 



and somewhat proniim'ut, tliu teiii2)les strongly narrowed behind; 

 puncturation very fine and very sparing, each puncture with a stiff 

 iiair. Antennae with the 2nd joint shorter than the 3rd, the 4th 

 to the 10th transverse, gradually increasing in widtli, the 11 th conical, 

 longer than tlie two, preceding together. Thorax transverse, nearly 

 a third broader than long, widest just before the middle, the sides 

 bordered, evenly lounded and contracted anteriorly and more 

 strongly posteriorly, posterior angles completely effaced, the sides 

 ])assing insensibly into the base, which is similarly bordered; very 

 fhiely and sparingly punctured, each puncture with a sti(f hair; the 

 anterior border on either side with a long seta, the sides each with 

 three others. Seutellum triangular, the base very fin^ punctured, 

 the apex impunctate. Elytra a little longer and wider than the 

 thorax, transverse, with puncturation and pubescence as on the 

 thorax, the sides with two setae. Abdomen with the anterior seg- 

 ments testaceous-yellow, the fifth to the eighth black; the sides 

 setiferous. 



cj*. Abdomen glabrous and impunctate except for a very few 

 setiferous punctures along the posterior margins of the fiftli and 

 sixth segments and a few similar ones towards the sides of the seventh 

 and eighth segments ; no visible ground-sculpture. Eighth abdomi- 

 nal segment feebly and broadly emarginate posteriorly and obscurely 

 denticulate. 



9. Abdomen with a double row of setiferous punctures few in 

 number, plactid transversely on each segment, one row across the 

 middle, the other along the posterior border ; ground-sculpture fine 

 and coriaceous. Eighth abdominal segment truncate jjosteriorly. 



Hub. Seinbawaug, in logs associated with a species of 

 Ant. 



13G. Myrmedonia apicalis, n. sp. 



Black, shining, the base of the elytra rufescent, the second to 

 the fifth dorsal segments of the abdomen bright testaceous-red. 

 The first two joints of the antennae, mouth-parts and legs, testaceous. 

 Length 3-8 mm. 



In general appearance this species resembles to some extent the 

 insects included under Zijras, s. str., and in view of the group being 

 polymorphic and requiring considerable elucidation before a satis- 

 factorjf arrangement can be arrived at. it is provisionally placed 

 therein. Head transversely quadrate, the temples a little rounded 

 and contracted posteriorly, the eyes moderate and not prominent, 

 sculpture consisting of a very few scattered setiferous pinictures, 



TRANS. ENT. SOC. LOND. 1920. — PARTS I, II. (JULY) T 



