h^om the Philippine Islands. 195 



NB. The postvertical bristles arc absent in the european Calob. 

 cibaria, ephippium, as well as in most of the Taeniapterae from South- 

 Eastern Asia; it is remarkable that among the latter those with dark 

 hind femora have them (Calob. eclipsis 0. S., tipularia Wk., mone- 

 dula 0. S., nigripes v. d. W.); I also find them in the North American 

 Taenioptera geonietra R. D. In Nerius fuscus the cephalic bristles 

 are exceedingly small and remote from each other, on account of the 

 longitudinal development of the head. 



II. No humeral; ivro posthumeral bristles in the european 

 Calobatae (cibaria, ephippium), in the exotic Taeniapterae, in Grammi- 

 comyia and Eurybata semilauta; I see only on e posthumeral in Micro- 

 peza, Nerius (of the group of duplicatus, inermis etc ), and in Eurybata 

 hexapla; in some specimens of Nerius fuscus I perceive a very weak 

 second posthumeral; it is probobly very deciduous, because in mort 

 specimens it does not exist. 



Two supra-alar bristles (the second and third); in Grammico- 

 myia I perceive three. 



Two praescutellar (in some species there is a second pair 

 in front). 



Two scutellar (four in Telostylus and Nothybus). 



III. The pleural bristles are represented sometimes by a single 

 strong sternopleural bristle, above the middle coxae (Micropeza), 

 or a weak one (Eurybata hexapla); sometimes there are two, three or 

 more weaker bristles placed in a row (the european Calobatae); or a 

 distinct fringe of numerous bristles (Taeniaptera). In Nerius I perceive 

 no pleural bristles at all. 



The pile on the sternum, especially in front of the middle coxae, 

 also varies in different genera, but is often difficult to observe; there is 

 a great deal of it in the european Calobatae; a fringe of stiff bristles 

 replaces it in Taeniaptera; in Eurybata only a few bristles are apparent. 

 On the coxae, some characteristic bristles deserve attention: Taeniap- 

 tera has a row of a few stiff bristles at the extreme front end of the 

 fore-coxae, which, in Eurybata, seem to be replaced by a single hair. 



Before proceeding with the description of the species from the 

 Philippine Islands, I will insert a notice on some little-known genera 

 of Micropezidae from South-Eastern Asia, the types of which I have 

 had the opportunity to examine in different collections. 



N othyhus Rondani, Annali Mus. Civ. Genoa VII, 439 (type, N. 

 longithorax, Borneo), is represented by two specimens in the Museo 

 Civico. It is a very remarkable form, which will be easily distinguished 



