56 PROCEEDINGS OF THE NATIONAL MUSEUM vol.74 



136. Tips of palpi blackened 137. 



Tips of papli not blackene<l 138. 



J87. Longest hairs on ari.sta less than half as long as width of third antennal 

 segment ; thorax without evident dark markings on dor.sum. 



brevicornis ( Kertesz ) . 



Longest hairs on arista distinctly more than half as long as width of 



third antennal segment ; thoracic dor.sum with a dark mark along inner 



side of each humeral callosity, and a dark vitta along inner side of 



each series of dorsocentrals punctipennis (de Meijere). 



138. Cell at apices of auxiliary and first veins infuscated ; thoracic dorsum with 

 four broad reddish vitlae, the central pair extending over disk of 



scutellnu) preapicalis Malloch. 



Cell at apices of auxiliary and first veins clear; thoracic dorsum not 

 noticeably vittate bancrofti (Bergroth). 



Subgenus Chaetohomoneura Malloch 



This subgenus was described in " Supplementa Entomologica " ® 

 and the genotype is Lauxania semibi^niiea de Meijere. 



HOMONEURA (CHAETOHOMONEURA) UMBROSA. new species 



Male. — Head brownish fuscous, yellowish on anterior part of 

 frons and parafacials; antennae testaceous j^ellow; palpi black. 

 Thorax testaceous yellow, largely obscured with fuscous or black 

 shading, sometimes only the humeral angles and along the sutures 

 j'ellowish. Abdomen fuscous, or black, usually yellow at base. Legs 

 pitchy, the tibiae and tarsi paler. Wings luteous. Halteres yejlow. 



Frons less than one-third of the head width, the orbital stripes 

 shining and distinct, bristles all strong, ocellar pair shortest; arista 

 plumose. Thorax with three pairs of postsutural dorsocentrals, one 

 pair of strong prescutellar acrostichals, a strong prealar, about 12 

 series of intradorsocentraj hairs, two sternopleurals, and some of 

 the hairs in line between the posterior dorsocentral and supra-alar 

 bristles strongly developed. Hypopygium as Figure 32. Fore femur 

 with an anteroventral comb; mid femur with several strong, short, 

 posteroventral bristles; hind femur with some fine anteroventral 

 bristles on apical half; mid tibia with from 2 to 4 rather long 

 strong posterior bristles. Inner cross vein of wing a littje proximad 

 of middle of discal cell; apical section of fourth vein 'hardly longer 

 than preapical. 



Length, 5.5 to 6 mm. 



Type^ male, allotype^ one male and three male and two female para- 

 types^ Mount Ma<iiiiling, Luzon; one female paratype, Butuan, 

 Mindanao (C. F. Baker). 



2'///^^.— Male, Cat. No. 41150, U.S.N.M. 



• Volume 15, p. 106, 1927. 



