202 [September, 



stout, arcuate, finely pimctate, striate at the sides, smoother in ? . Prothorax 

 transverse, conical, constricted before the apex, sparsely, finely punctate, the 

 piinctnres becoming coarser near the basal and apical margins. Elytra narrowed 

 from a little below the base, the humeri not prominent ; each with six sharply- 

 cut, rather broad, deep, sparsely punctiu-ed striae on the disc, and another stria 

 along the margin beneath, the interstices flat, each with an irregular row of 

 excessively minute punctiu-es. Beneath coarsely, closely punctate ; ventral 

 segment 1 broadly hollowed and smoother in the middle of <? . Prosternal sulcus 

 deep, V-shaped, strongly margined, not extending beyond the anterior coxae. 

 Anterior coxae widely separated. Femora feebly sulcate beneath. Length 1-|- 

 2, breadth 1-1 Vt; mm. ( d" ? )• 



Hab. : Tropical America. 



Feeds on leaves and flowers of Cattleya, also seen attacking flowers 

 of Dendrobitim (Weiss). Found attacking roots of orchids (Crosby). 

 Amongst the eight described species of Diorymellus, all of which are 

 from Central America or the Lesser Antilles, seven of them being 

 known from single examples only, the present insect is nearest allied 

 to D. 12-striatus Champ., differing from it in the conspicuously 

 punctate prothorax, the less prominent humeri, the broader and more 

 deeply impressed elytral striae, the much more coarsely and closely 

 punctate under surface, the naiTOwer prosternal sulcus, and the more 

 widely separated anterior coxae, In D. 12-striatus, from Panama, the 

 elytra are triangular and much wider at the base, and finely striate. 

 Eight specimens of D. laevimanjo have been examined. 



Horsell, Woking : , 



August, 1916. 



OTIORRHTNCHUS PORCATUS Herbst, IN IRELAND. 



BY G. W. NICHOLSON, M.A., M.D. 



Pitchy, or almost black, with scanty short greyish pubescence, which is 

 uniform over the forehead and rostrimi, and occurs in patches on the thorax 

 and the elytra. Head and rostriim broad, eyes prominent, antennae pitchy, 

 with the 2nd joint of the funiculus about half as long again as the 1st. 

 Tliorax broader than long, the sides rounded, slightly narrower in front than 

 behind, covered with coarse umbilicated granulations, which are, however, 

 absent from a narrow depressed space in the middle line. Elytra short, 

 broader than the thorax, shoulders prominent. Each elytron with four raised 

 tuberculated ridges, which attain their greatest development at the apex and 

 sides, and bear coarse curved hairs at the apices of the tubercles ; the ridges 

 are bounded by a row of large punctures, which occupy the greater part of the 

 interstices. Legs pitchy, femora simple. Length 4j-5 mm. 



