OF NEW ZEALAND. 357 



Group TRACHYSCELIDJE. 



Under-mentum slightly hollowed, provided with a short peduncle. 

 Ligula prominent ; its paraglossse inserted at its base near the sides. 

 Maxillae, uncovered, their inner lobe furnished with a corneous hook. 

 Last joint of all the palpi never securiform. Head of variable form, 

 more or less immersed in the prothorax. Antenna generally very short, 

 eleven-jointed, partly perfoliate and moniliform. Prothorax more or 

 less emarginated anteriorly, margined laterally. Scutellum distinct. 

 Elytra slightly embracing the abdomen; epipleural folds straight and 

 entire. Anterior coxes cylindrical ; the posterior strongly transversal, 

 almost contiguous to the elytra. TibicR rough, the anterior widened, 

 dentate or sinuate externally ; the spurs of all distinct and rather long ; 

 tarsi rough. Projecting intercoxal process of the abdomen triangular. 

 Metathoracic episterna narrow, parallel ; epimera distinct. Mesothoracic 

 epimera external and posterior. Body apterous or winged. 



Chaerodes, 



White; Voy. Er. Terr., Ins., p. 12. 



Head small, wider than long ; antenna twelve-jointed, first joint 

 thickest, oblong, second joint very small, almost concealed, third joint 

 rounded, fourth to ninth joints close together, somewhat cup-shaped, 

 gradually larger, three terminal joints wide cup-shaped, nearly equal in 

 size ; thorax transverse, very convex across, sides rounded, somewhat 

 angulated at the side behind; scutellum very small; elytra ovato-quadrate, 

 sharp-pointed at the end, much arched ; legs strong ; anterior tibia some- 

 what flattened, deeply sinuated on the outside and ending in a longish 

 blunt lobe ; front tarsi with five hairy joints, the terminal widest ; tarsi 

 of middle legs with five somewhat elongated joints, the basal the largest ; 

 hind tarsi with four somewhat cylindrical joints, the basal largest and 

 thickest; tibiae of middle and hind legs with two blunt spines at the end. 



647. C. trachyscelides, White; Voy. Er. Terr., Ins., p. 12. 

 Pale-yellowish, thickly punctured; two large obscure spots on thorax; 

 the greater part of disc of elytra with small obscure spots, in some 

 specimens confluent ; tibia of middle and hind legs at the end thickly 

 covered with short somewhat rufous bristles. 



Length, 3! lines. 



Wellington. 



NOTE. The head is so sculptured as to be rugose, not punctate ; 

 the thorax is rugosely punctured, and its punctation more or less con- 

 fluent ; the sculpture of the elytra consists of rather small punctures, 

 but not smaller than those of the thorax, with strongly wrinkled very 

 irregular elevations, ^ht prosternal process is narrow and arched ; the 

 middle coxa are almost contiguous, the interval being quite linear ; 

 whilst the posterior are more widely separated by the flattened process 

 of the basal abdominal segment. Labrum prominent, emarginated in 

 front. Epistome somewhat depressed but distinct, short and transverse. 



