from the Philippine Islands. 109 



it is in most cases impossible to determine the species without having 

 type-specimens at hand. 



Laphria dimidiata Macq. Dipt. Exot. 1" Suppl. 72 (Philippine 

 Islands). 



The description agreeing, and the locality being the same, the 

 identification may be taken for certain. I suspect that L. Taphius Wk. 

 List etc. II, 380 (Philippine Islands) is the same species, although the 

 description does not mention the golden hairs on face and thorax. 

 There are numerous $ and 9 specimens; it must be a commen species. 



Laphria partita Wk. J. Lin. Soc. IV, 105 (Celebes); 0. Sack. 

 Enum. 40. 



The specimens (3 $$) were thus named by Mr. Walker; I have 

 had occasion to compare them with the specimens of L. partita from 

 Celebes mentioned in my „Enumeration," but did not reach any positive 

 conclusion about their identity or diversity. 



Laphria Phalaris n. sp. §$. Ftdvous, thorao! with black 

 stripes; abdominal segments 1 — 4 with black triangidar spots; 

 segment 5 altogether black; wings with a brown apex. — Length 

 15—18 mm. 



Elongated and rather slender for a Laphria; fulvous, antennae 

 of the same color; third joint slightly brownish, short -lanceolate in 

 shape; mystax golden -yellow, proboscis reddish. Thorax with three 

 broad subcontiguous black stripes; the intermediate one cuneiform, sub- 

 geminate; the lateral ones abbreviated in front and interrupted at the 

 thoracic suture j in the Q. these stripes occupy more space than in the 

 male; sternum black, as well as some portions of the pleurae (more in 

 the female than in the male); the intervals of the thoracic stripes, es- 

 pecially behind the humeri, and also the metanotum, golden -sericeous. 

 Abdomen with a small black spot on the first segment, a distinct tri- 

 angle on the second; a still larger one on segments 3 and 4; segment 5 

 altogether black; the end of abdomen, as well as the genitals, yellowish- 

 red. Halteres and legs yellowish-red; the extreme tips of the middle 

 and hind femora infuscated. Wings bright reddish-yellow, with a well- 

 defined brown apex, the proximal limit of which is immediately before 

 the proximal end of the second submarginal cell; first posterior cell 

 broadly open; crossveins, closing the discal and the fourth post. c. 

 parallel, although not forming a straight line. — Three males and two 

 females, 



NB. This species has a good deal of L. conchidens Wk. J. Pr. 

 Lin. Soc. IV, 105; but the description of the abdomen disagrees; be- 



