COLLECTED IN DUTCH NEW GUINEA. 537 



This species approaches A. frenchi Blackb. (a common New Guinea insect) and 

 A. cwprarius Web. in size and shape, and in the distance between the eyes, but differs 

 in colour and puncturation. It is uniformly greenish-brassy above, with the underside 

 and legs red. The thorax and elytra! intervals are very minutely and sparsely 

 punctulate, and the punctures of the striae are not nearly so closely placed as in the 

 above-named species ; they are rather irregular, but usually separated by a space much 

 greater than the diameter of one of them. 



Amaetgmus utakwensis. 



Amarygmus utakivensis Blair, Abstract P. Z. S. 1914, p. 19 (March 24). 



Elongato-ovalis, seneus, sat nitidus, prsecedenti similis, magis elongatus, fortius punctatus, corpore 



subtus cum pedibus rufo-piceo. 

 Long. 10^ mm., lat. 5i mm. 



Utakwa Eiver ; 1. {Tyj)e of the species.) 



More elongate than the preceding and eeneous in colour ; the anterior border of 

 the pronotum in the single specimen is reddish piceous, but this is probably due to 

 immaturity. In puncturation it resembles A. frenchi Blackb. and A. caprarius Web., 

 the thorax and elytral intervals being distinctly and moderately densely punctate, 

 and the punctures of the striae strong and close. 



Amarygmus wollastoni. 



Amarygmus ivollastoni Blair, Abstract P. Z. S. 1914, p. 19 (March 24). 

 Elongato-ovalis, nitidus, eyaneus, corpore subtus cum pedibus nigro. Prothorax subtiliter punc- 



tulatus ; elytra striata, striis sat subtiliter punctatis, puuctis et striis ipsis griseo-nigris, 



intervallis antice planis postice convexis. Corpus subtus cum pedibus nigrum, subnitidum, 



tarsis rufo-setosis. 

 Long. 12 mm. J lat. 6 mm. 



Utakwa River; 1. [Type of the species^ 



Elongate-oval, shining, blue with slight purple reflections. More closely allied to 

 the foregoing than to any other species known to me ; it differs from them in the black 

 colour of the underside and legs, also of the antennae and the tarsal vestiture, while the 

 hairs clothing the apical half of the tibiae within remain reddish. The sides of the 

 thorax are less evenly arched from base to apex, being almost parallel in the basal half 

 and then narrowed to the apex ; the pronotum is minutely and inconspicuously 

 punctulate. The elytral striae are fine, but clear-cut, the punctures also fine, elongate, 

 and moderately distant ; both striae and punctures are blackish-grey, but this colour 

 does not intrude at all upon the intervals. The latter are very minutely, scarcely 

 visibly punctulate, and in the anterior half almost flat, but becoming distinctly convex 

 behind. The legs are black and very slender. 



VOL. XX. — I'ART XVI. No. 6. — October, 1915. 4 G 



