PTECTICUS LATIFASCIA. 65 



male specimen and in the Javanese female even shows 

 three blackish longitudinal stripes. On accouut of the shape 

 of the second joint of the antennae , the species belongs to 

 the genus Ptecticus. 



In the male specimen the genitals are very prominent; 

 they consist of a two-jointed , slightly curved , blackish- 

 brown upperpiece , the terminal joint of which is short and 

 beset with bristles; and of a pair of lamellar inferior ap- 

 pendices, each of which bears a subapical, small, short- 

 stemmed , shining-black scale , which is hairy on the under- 

 side; in the middle the long, pale-yellow penis is visible. 



1 4. Sargus metallinus , Fabr. 



Sargus metallinus, Fabr. Syst. Antl. 258. 11 ; Wied. Auss. 

 Zweifl. II. 36. 16; — S. formicaeformis, Dol. Nat. Tijdschr. 

 Ned. Ind. XIV. 403. pi. 3, f. 5, 



A single specimen from Rambodde, Ceylon (Felder) in 

 the Leyden Museum; another from Java (Piepers) in my 

 collection. 



According to Doleschall's figure and description, S. for- 

 micaeformis cannot be distinguished from S. metallinus , and 

 is Dot identical with S. mactans Walk., as is supposed by 

 Osten Sacken (Ann. Mus. Gen. XVI. 417), the most stri- 

 king character of the latter species , — the black base of 

 the hind tibiae, — being absent in that of Doleschall. 



15. Sargus mactans, Walk. 



Walk. Proc. Linn. Soc. IV. 97. 22; Ost. Sack. Ann. 

 Mus. Gen. XVI. 417. 



Two female specimens from Rambodde in Ceylon , pre- 

 sented to the Museum by Dr. Felder. 



Walker's description is taken from a much damaged 

 specimen (without head) , likewise a female , from Borneo. 



The specimens in the Leyden Museum have a length of 10 

 mm. and are chalybeous , with purple gloss and short grey pi- 

 Notes from the Leyden M^useum, "Vol. Vll. 



