46 PROCEEDINGS OF THE NATIONAL MUSEUM vol.74 



Species 5 nnu. in leni,'tli; orbital stripes shining, not densely gray dusted, 

 only visibly so when viewed from behind, each at upper brstle almost as 

 wide as interfrontalia at same point nudiseta (Kertesz). 



48. Thorax with only the prescutellar pair of strong acrostichals behind 



suture , 49. 



Thorax with at least one pair of well developed acrostichals behind suture 

 in addition to the prescutellar pair 52. 



49. Thorax largely fuscous and quite densely gray dusted, abdomen with a 



fuscous fascia at middle of at least the third and fourth tergites; hypopy- 



gium as Figure 51 hawailensis Malloch. 



Thorax entirely testaceous; abdomen without fuscous fasciae 50. 



50. Abdomen without paired black dorsal spots apically ; bypopygium as Figure 



52 curta, new species. 



Abdomen with at least one pair of black dorsal spots apically 51. 



51. Black spots on fifth tergite large, extending almost the entire length of the 



exposed part of tergite; bypopygium as Figure .IS— nudifrons (Kertesz). 

 Black spots on fifth tergite small, opaque; bypopygium as Figure 54. 



crassicauda Malloch. 



52. Thorax with one pi-esutural and four postsutural pairs of widely separated 



acrostichals ; abdomen with a central spot, and transverse lateral marks 

 black on apices of tergites except the basal two__ diacrostichalis Malloch. 

 Thorax with or without presutural acrostichals, if there are any such 

 present they are weak, and close to suture; abdomen without transverse 

 black apical marks on tergites 53. 



53. Extreme lateral edges of fifth and sixth abdominal tergites furnished with 



dense short black spinules ; bypopygium as Figure 55 ; abdomen with three 

 small black spots on fifth tergite acrostichalis (de Meijere). 



No dense short black spinules on extreme lateral edges of any of the abdomi- 

 nal tergites; bypopygium as Figure 56; abdomen with a pair of large 

 black spots on sides of fifth tergite philippinensis, new species. 



No short black spinules on edges of tergites; bypopygium as Figure 57; 

 abdomen with three spots on fifth tergite pubiseta Kertesz. 



54. Fifth wing vein thickened for a short distance at base of discal cell, and 



with microscopic hairs on thickened part; testaceous yellow species with 

 a series of black spots on middle of tergites of apical half of abdo- 

 men 55. 



Fifth wing vein normal at base 57. 



55. Wing with a dark brown costal cloud, less distinct proximad of apex of 



first vein, which extends almost to third vein up to a point almost above 

 outer cross vein, from there extending into first posterior cell and over 

 almost entire apex of wing, leaving a small clear patch in first posterior 

 cell just beyond outer cross vein on the fourth vein, and connecting with 

 a dark spot on upper extremity on outer cross vein — costalis, new species. 

 Wing without a dark brown costal cloud, at most the apices of the second, 

 third, and fourth veins clouded beyond level of outer cross vein 56. 



56. Apices of veins 2, 3, and 4 quite distinctly clouded with brown ; bypopygium 



as Figure 58 padangensis (de Meijere). 



Apex of second wing vein quite distinctly clouded, those of veins 3 and 4 



not noticeably clouded ; bypopygium as Figure 59_ intermedia, new species. 

 Apices of veins 2, 3, and 4 not noticeably clouded ; bypopygium as Figure 60. 



hornl, new species. 



