(506 COLEOPTERA. 



yellow Betae, angularly impressed behind. Presternum carinate along the 

 middle. Metasternum convex, not at all impressed. Basal ventral seg- 

 ment concealed by the femora, second and third Bubequal, the next rather 

 shorter, fifth widely incurved, sixth slightly longer, also widely emarginate, 

 seventh broad, its operculum oblong. 



Much less robust than D. pubescens (244), its legs evidently more slender, 

 the head more obliquely narrowed behind, the thorax narrower and more 

 oviform, the sculpture manifestly different, and the antennal structure 

 dissimilar. D. gigantea (3530) may be separated very easily. 



<J. Length, 2 nun. ; breadth, quite -| mm. 



Near south of Lake Rotoiti, Nelson. Two males, discovered l>v Mr. T. 

 Hall on the 21st April, 1916. 



Vidamodes gen. nov. 



Body slightly convex, elongate, subparallel, narrowed anteriorly. Head 

 hardly as large as thorax, subquadrate behind the antennae, with obtuse 

 hind angles, somewhat abruptly contracted just before the eyes ; uneven 

 above, the foveae not prolonged or confluent in front. Antennal tubercles 

 rather small and distant. Eyes not prominent, situated at or just behind 

 the middle. Thorax suboviform, with a transverse stria connecting the 

 angular basal and oviform lateral foveae, the discal impression elongate 

 but not touching the basal fovea or apex. Elytra oblong, with well-marked 

 sutural striae and intrahumeral impressions. Hind-body as broad as elytra, 

 rather shorter, basal three segments nearly horizontal and equal, the others 

 deflexed. 



Maxillary palpi moderate : basal joint small : the next elongate, gradu- 

 allv incrassate ; third transverse, not at all triangular, rather broader than 

 the extremity of second ; fourth longest, elongate-oval, with a minute 

 acicular apical appendage. 



Antennae 11-articulate. shorter than the head and thorax ; basal two 

 joints stout, second oblong-oval; third small, only slightly longer than 

 broad, joints 4-7 also small, moniliform, eighth shorter : ninth d stinctly 

 larger, not as broad as the more transverse tenth ; the terminal largest, 

 conical and acuminate, as long as preceding three united. 



Prosternum not carinate. Basal ventral segment exposed ciliate behind, 

 acutely projecting between the moderately separated coxae; second and 

 third equal, moderately large, fourth half as long ; fifth widely incurved, 

 much shorter than fourth in the middle ; sixth lar< f e. seniicircularlv 

 emarginate. seventh subrotundate. Anterior tarsi with the second joint 

 gradually thickened ; the posterior pair more elongate and slender. 



It should be placed between Euplectopsis and Vidamus. 



4171. Vidamodes furvus sp. nov. 



Nit id. rufo-fuscous, hind-body darker, palpi, antennae, and tarsi testa- 

 ceous ; clothed with fine, decumbent, greyish hairs. 



Head uneven, finely punctate, the interocular foveae, when examined 

 sideways, appear to be separated by a <a uniform elevation which is 

 prolonged anteriorly. Thorax rather longer than broad, widest before the 

 middle, indistinctly punctate. Elytra about a third longer and broader 

 than thorax, with curvedly narrowed shoulders, apparently impunctate, 



