PHILIPPINE DIPTERA, II 31 



169. Campylocera thoracalis Hendel, 1913, var. rufina var. nov. 



Female. Similar to the type of the species from Maao, Negros 

 (C. S. Banks), in the British Museum, but differing in the color- 

 ation of mesonotum. The four shining black longitudinal 

 stripes are in the present variety of a shining reddish color, 

 which sometimes is only very little darker than the surrounding 

 parts, and therefore the stripes are hardly visible. Chaetotaxy 

 of head (not distinct in Hendel's type) : Three ocellars, all bent 

 forward; one superior frontoorbital, bent forward; one post- 

 vertical, diverging outwardly; one inner vertical, directed in- 

 wardly; one outer vertical, smaller and directed outwardly. 



LUZON, Laguna, Mount Maquiling (Baker). 



Genus TYLOPTERNA novum 



This genus is erected for an aberrant ortalid, which shows a 

 very extraordinary appearance, having only a remote resem- 

 blance in the shape of head to the Ethiopian genus Pterageno- 

 myia Hendel, which is assigned by its author to the tribe 

 Trapherinae. 



Head broader than the thorax, truncate anteriorly, being in 

 profile view exceedingly narrow, while in front view it has the 

 aspect of the specimen figured by Hendel, 12 but it is less produced 

 upward. Head broader than high, having more the shape of a 

 rectangle than that of a trapezium. Occiput little convex and 

 the neck short, the head, therefore, being close to the thorax. 

 Frons broad, slightly concave, placed in the same line with the 

 face, lower than the eyes ; the ocelli disposed in a small triangle, 

 being very close together, and placed on the middle of the vertical 

 keel, almost at equal distances from neck and from face of 

 antennae. 



Eyes bare, rather small, twice as high as broad. Face a 

 little shorter than the frons, but considerably broader, the eyes 

 showing a prominent angle inward on the line of the antennae; 

 face concave, not at all prominent even at mouth border, and on 

 the sides produced into a short point below the under corner 

 of eyes. Lunula linear, concealed. Antennae very short, close 

 together at base, inserted at middle of eyes, directed outward, 

 the third joint almost circular and as long as the second; second 

 with a bristle above at end; arista basal, long, thin, microsco- 

 pically pubescent. Antennal furrows horizontal, directed out- 

 ward, placed just below the dividing line between frons and 

 face, and parallel with this line. Oral opening retreating, con- 



12 Genera Insectorum, Platystominae, Plate III, fig. 48. 



