PSELAPHIDAE. 507 



of preceding one but scarcely broader than the transverse tenth, eleventh 

 longer than preceding two combined, subcorneal and acuminate. 



Underside chestnut-red, distinctly pubescent. Head, in both sexes, 

 studded with small granules, with an indistinct longitudinal carina and 

 many erect grey setae which are minutely knobbed at the end. Prosternum 

 finely longitudinally carinate. 



Male. — Metasternum impressed along the middle. Basal ventral seg- 

 ment ciliate behind but almost covered by the femora, segments 2-4 

 rather short, fifth still shorter ; sixth rather longer, semicircularly 

 emarginate, seventh large, broad, its operculum distinct, oblong ; these 

 terminal segments finely yet distinctly punctate. 



Fern. — Ninth antennal joint hardly as large as the penultimate. Sixth 

 ventral segment smooth behind, punctate elsewhere. Legs moderately 

 stout, simple. 



Shorter and relatively broader than the northern E. schizocnemis (3203), 

 its nearest ally. It is more distinctly pubescent ; the head and thorax 

 are shorter, and the former has no cariniform elevation. The ninth antennal 

 joint, in the male, is considerably larger than the tenth. 



(S- Length, If mm. ; breadth, f mm. 



Glenhope. Four examples found by Mr. T. Hall; 14th March, 1915. 



Plectomorphus RafEray. Gen. Ins. (Wytsm.), Pselaphidae, p. 105. 

 4023. Plectomorphus scitiventris sp. nov. 



Nitid, moderately elongate, subparallel, slightly convex ; rufous, legs 

 and antennae Ught chestnut-red, tarsi and palpi testaceous ; pubescence 

 mostly elongate and subdepressed, mingled with a few long erect setae, 

 elytral apices closely fringed with short yellow setae. 



Head smaller than thorax, subquadrate behind the widely separated 

 antennal tubercles, genae straight, with obtuse angles ; it is uneven, dis- 

 tinctly punctured, and somewhat elevated at the sides, the foveae are more 

 or less united to the frontal depression. Eyes small but prominent. 

 Thorax subcordate, about as long as broad, widest before the middle ; 

 discal groove moderately deep and broad, extending from the apex to the 

 large basal fossa, lateral foveae prolonged as grooves almost to the front ; 

 there is no distinct punctation. Elytra quadrate, a third longer than 

 thorax, slightly narrowed near the base ; sutural striae and humeral impres- 

 sions very broad and deep at the base, these latter very short. Hind-body 

 nearly as long and broad as the elytra, basal segment sUghtly longer than 

 second, the others deflexed and curvedly narrowed posteriorly. Legs 

 moderately elongate, simple. 



Antennae equalling the head and thorax in length ; basal joint red, 

 stout, hardly any longer than the oblong-oval second, the next smaller yet 

 longer than broad, contracted at the base ; joints 4-8 small and bead-Uke, 

 fifth and seventh a trifle larger ; ninth and tenth larger, transverse ; the 

 terminal nearly as long as preceding four combined, evidently acuminate. 



Underside rufescent, terminal ventral segments and head distinctly 

 pubescent, the latter coarsely punctate and with a large angular fovea 

 behind. Prosternum with a fine longitudinal carina. Basal ventral seg- 

 ment ciliate and partly covered by the femora, second as long as third at 

 the sides, somewhat obliquely swollen at each side of the middle, corre- 

 spondently depressed and ciliate behind ; third with a central triangular 

 flat lamina in front and a curvate impression at each side of it ; fourth 

 18— Bull. No. 1. 



