170 PACHYTERIA OCHRACEA. 



thorax is viewed from above , this leathery portion is to 

 be seen between the lateral spines and the frontmargin. 



May these two insects possibly represent the opposite 

 sexes of one and the same species? viz. Pachyteria ochracea 

 Waterh. 



The fifth ventral segment in the male is broadly and 

 deeply emarginate , the sixth broadly and faintly so. 



Pachyteria diver sipes , nov. spec. 



Very closely allied to P. equestris Newm. from Penang 

 and Malacca, but certainly distinct. Besides several diffe- 

 rences in coloration a valuable structural difference exists 

 in the antennae : in the female sex of the new species they 

 are considerably more slender than they are in the male 

 sex of equestris. 



As regards the coloration the head, which in equestris 

 is blue with a red hinder margin , is dark reddish brown 

 with greenish blue tinges on the cheeks, labrum and cly- 

 peus in the new species , and the thorax instead of being 

 red , has the same colour as the head ; the scutellura is 

 entirely dark steel blue and has a black pubescence; the 

 basal half of the elytra is of a paler reddish brown which 

 colour rather strongly contrasts with that of the thorax; 

 the apical half of the elytra is of a dark greenish blue; 

 the five basal joints of the antennae , as well as the basal 

 half of the 6th joint, are ochreous with a brownish tint on 

 the scape and on the two following joints ; the apical half 

 of the 6th joint and the subsequent portion of the an- 

 tennae black. The under surface of the body, with the 

 exception of the head and of the prosternum in front of the 

 anterior coxae , is rather dark steel blue ; the legs are 

 likewise steel blue with the exception , however , of the 

 swollen portion of the anterior and intermediate femora, 

 this portion having the dark reddish brown colour of the 

 head and prothorax. 



The punctuation of the new species agrees pretty well 



Notes from the Ley den Miuseum, Vol. XII. 



