192 C. R. Osten Sacken: Diptera 



costal portion of the wing is more distinctly limited by the third vein 

 and not gradually evanescent etc. But all these differences may be 

 sexual, or individual aberrations. 



Pipunculidae. 



JPipunculus. Grayish, antennae and legs yellowish; fourth vein 

 furcate; a single damaged male specimen, different from the three asiatic 

 species hitherto described (P. amboinalis Wk., J, Pr. L. Soc. V. 150, 

 Amboina; armatus and abscissus Thomson, Eug. Resa, 514, China). 



Mascidae Calyptratae. 



The number of species of this division contained in the coUection, 

 is about forty. Among them are represented the genera Dexia, Pro- 

 sena, Masicera, Miltogramma and several other Tachinidae; several 

 Sarcophagae, Luciliae, Idiae, Pyrelliae and Muscae; a number of An- 

 thomyiae and one Lispe. Unfortunately most of the specimens are in 

 a very bad condition. I will content myself with enumerating the few 

 species which I could name, or which I found already named in the 

 coUection, 



Musca conducens Walk. (J. Pr, Lin. Soc. IV, 138, Celebes). 

 Was so named by the author, and may really be that species. 



Idia muscina Rond. (Syn. Stomorhyna muscina Rond. Ann. 

 Mus. Civ. Genova, VII, 429; Borneo), It is not said in the description 

 that the pale crossband on the second segment is interrupted; never- 

 theless I believe the identification to be correct, as I remember seeing 

 the type in the Museo Civico. 



Idia lateralis v. d. Wulp (Sumatra Exp. 44). A single, very 

 badly preserved specimen. I am not quite sure of the determination, 

 as the tibiae are brownish-yellow at the base only. 



Ochromyia ferrug Inea Dol. (2 Bijdr. 38, Tab. X, f. 3, 

 Amboina). Sixteen specimens ( $ $ ) ; the abdomen varying from dark 

 metallic blue (testaceous at base only), to a uniform brownish testa- 

 ceous. For the Synonymy, compare my Enumer. etc. 61 and Mr. v. d. 

 Wulp, Tijdschr. etc. XXIII, 174. 



Lucilia ducc (Esch.) Wied. A. Z. II, 399, Seven specimens. 



Lucilia ditissima Walk. (J. Pr. L, Soc V, 245 (New-Guinea). 

 So determined by Mr. Walker, although the most striking character of 



