[\-2 Transactio 



II s . 



3212. Plectomorphus optandus sp. now Plectomorphus Raffray. 



Robust, elongate, convex, shining; rufous, elytra and legs of a paler 

 tint, tarsi and palpi fulvescent ; pubescence yellowish, thicker on the 

 Aving-cases and hind-body than elsewhere, and bearing also some elon- 

 gate, slender, erect setae. 



Head large, rather elongate, narrower than thorax, a little curvedly 

 narrowed behind the prominent, coarsely faceted eyes; with a pair of 

 basal foveae, its whole central portion depressed, so that the antennal 

 tubercles appear large and elevated. Thorax large, cordiform, of about 

 equal length and breadth, somewhat dilated and rounded near the front, 

 where it is more abruptly narrowed than towards the base; the median 

 groove is deep and broad, and terminates in the large post-median fossa, 

 which has thick raised hind borders, and a slight transverse stria to- 

 wards each side; the lateral foveae are sulciform, and extend from the 

 base to near the front; like the head, it is only indistinctly punctate. 

 Elytra a third longer than thorax, rather broader than it is at the base, 

 more so behind; sutural striae well marked, foveiform at the base, intra- 

 humeral impressions also deep at the base, rather broad, but becoming 

 obsolete towards the middle. Hind-body about as broad as but shorter 

 than the elytra, gradually deflexed, 3rd segment^, in the middle, as long 

 as the 2nd; the basal has a deep transverse impression with cariniform 

 lateral borders. 



Antennae with slender, elongate pubescence; 2nd joint quite as long 

 but not as stout as the 1st; 3rd elongate, yet shorter than its predecessor ; 

 joints 4, 6, 7, and 8 moniliform, each of about equal length and breadth; 

 5th longer than contiguous ones; 9th and 10th evidently larger than 8th, 

 about equal, truncate at the base, much contracted apically; 11th largest, 

 conical and acuminate; the club therefore is distinctly triarticulate. 



Legs elongate; anterior and intermediate femora stouter than the 

 posterior; front tibiae slightly bent and distinctly pubescent near the 

 extremity, the intermediate with a stout though rather short and not 

 very prominent calcar, directed backwards, at the inner extremity. 



Differentiated by the rather narrow, medially concave head, and 

 large, elevated antennal tubercles. In the type of the genus, P. spinifer 

 (2476), the calcar of the middle tibiae projects inwardly. 



<J. Length, 2| mm, ; breadth, f mm. 



Erua. One male, taken out of leaf-mould, January, 1910. A second, 

 rather more slender, with simple tibiae, is no doubt the female, and was 

 found amongst dead leaves collected by Mr. W. J. Guinness two months 

 afterwards. 



3213. Plectomorphus longipes sp. no v. 



Elongate, slightly nitid; fusco-rufous, tarsi and palpi fulvescent; 

 'its clothing a mixture of rather short, depressed, and more elongate, 

 suberect, greyish hairs, these latter predominate on the elytra; there 

 are also a few slender outstanding setae. 



Head nearly as large as thorax, rather abruptly narrowed in front 

 of the eyes, rounded behind them ; its sculpture ill-defined, apparently 

 minutely granular at the sides near the front ; there is a slender carina 

 along the middle of the occiput, the large basal foveae are not deep, 

 and are not distinctly prolonged anteriorly, the space between the promi- 

 nent antennal tubercles is depressed. Eyes small, only slightly convex. 

 Thorax cordiform, about as long as broad, strongly rounded, and widest 



