MEr,.\Xl)HYIDAK. 115 



triangular siiUjral gap at the (.■xtreinily ; their sulural striae are obsolete 

 near the base but well marked bi^iind; the sculpture is close but not 

 sharply defined, in some lights appearing punctate; they are foui' times 

 the lengtli of the thorax. 



Underside fuscous, minutely and closely sculptured, and bearing tine 

 yellowish pubescence. 



The acuminate and divergent elytial apices will isid its identification. 



Length, 5 mm. ; breadth, l^nnn. 



Kauriniu. Unique. Found by niyself in J-innarw l!)l(), at an 

 elevation of 1,900 ft. 



Mecorchesia gen. nov. 



Body very elongate and nearly quite parallel. 



Head immersed up to the eyes; forehead much j^rolonged, nearly 

 perpendicular, rather longer than broad and ti'uncate; clyjDeus not 

 distinctly marked off, almost linear and membranous; labrum rounded 

 at apex, prominent. Thorax of about equal length and breadth, its 

 base very feebly rounded medially and sinuate outwardly, appearing 

 almost truncate, without anterior angles as viewed from above; when 

 examined sideways a distinct margin is seen to extend from below the 

 middle of the eye towards the middle of the prosternal apex. Scutellum 

 extremely short, hardly visible. Elytra as wide as thorax at the base, 

 vei'v gently attenuate behind the middle, the extremity rounded. 



Maxillary palpi robust, basal joint small; the next triangular, 

 elongate and straight outwardly, sinuate and concave in front, its inner 

 angle acute but not extending as far forwards as the outer; 3rd much 

 shorter, similarly formed in front, rounded behind; the terminal cultri- 

 form, attached behind the middle to the outer or front angle of the 

 3rd, so that its base appears inwardly prolonged. Eyes widely distant 

 above, covering the whole sides of the head, slightly notched in front 

 above the middle, where the antennae are inserted in sulciform cavities. 

 Antennae filiform, very elongate, i-eaching backwards to the hind 

 thighs; 2nd joint smallest, yet longer than broad; the 1st gradually 

 dilated but shorter than the 3rd; the others also elongate. 



Legs elongate; the intermediate and posterior tibiae evidenrly 

 asperate externally, with pectinate spurs, those of the posterior half the 

 length of the basal tarsal joint, which is nearly as long as the tibia; 

 joints 2-4 slender and simple, gradually decreasing and, together, 

 ahnost as long as the 1st : anterior tibiae rather sliorter, tarsi ratlier 

 longer, slightly expanded; basal joint largest; 2nd and 3rd oblong; 

 4th slightly shorter, deeply emarginate above, entire underneath; 5th 

 slender, not longer than 3rd; i)enultimate joint nf middle tarsi with 

 shoi-t lobes : claws sinqjle. 



Pi-osternnm medially subtruncate in fi-ont, without any sign of 

 demarcation between the coxae and its Hanks, the cotyloid cavities rather 

 distant from its apex; its triangular process projects acutely nearly to 

 the tips of the coxae. Mesosternum remarkably elongate, equalling the 

 metasternum in length; the process separating the middle coxae is 

 moderately nai'i-ow, but in front is compi-essed and eariniform. .Meta- 

 sternum elongate, obtusely convex and obviously sulcate along the middle; 

 the episterna nearly twice as w-ide in front as behind. Trochanters 

 distinct. Abdomen nearly twice as long as the metasternum, composed 

 of 7 decreasing segments; 5th medially emarginate at its apex; 6th 

 shoi-t, similaidy tinai'ginate ; the terminal short yet (|uite rli.'^tinct and 

 finelv marcfined at the extj-emitv. 



