from the Philippine Islands. 93 



Head, including rostrum, bright-yellow; antennae and palpi brownish- 

 yellow. Collare velvet-black; thoracic dorsum black (the usual three 

 stripes being confluent); moderately shining; a large yellow spot each 

 side on the humeri; a smaller one between the thoracic suture and the 

 black scutellum; metanotum with a broad brownish -black longitudinal 

 stripe in the middle; yellow on the sides. Pleurae brownish-black, with 

 several yellow spots: a large one between the root of the wings and 

 the collare; a smaller one near the root of the halteres; a third one 

 above the middle coxae. Halteres yellow. Coxae black, legs brown. 

 Abdomen black; basal half of segments 2 — 4 yellow; at the base of 

 the fifth segment also, some yellow is visible; the segment bearing the 

 ovipositor, and the narrow one which precedes it, are yellowish-ferruginous. 

 Wings with a pale brownish tinge, more saturate in the costal cell; 

 stigma brown; second post. c. in contact with the discal. — One female. 



Pachyrrhina ortiva n. sp. $. Black thoracic stripes 

 confluent; collare yellow in the middle; metanotum yellow, with 

 a black spot posteriorly; abdomen black, ivith yellow crossbands 

 on segments 2 — 3. Length about 13 mm. (without ovip.) — 



Head and rostrum bright orange-yellow; a well defined deep black 

 spot on the occiput; antennae yellow, joints of the flagellum, except 

 the first, black at base. Collare yellow in the middle, black on the 

 sides; the usual thoracic stripes coalescent, shining black; a large yellow 

 humeral triangle, has its lower hind angle cut off by the humeral furrow; 

 a small yellow spot between the thoracic suture and the scutellum. 

 Metanotum yellow; a large black transverse spot on its hind margin. 

 Pleurae mixed of black and yellow, the black forming an irregular 

 triangle in the middle. Halteres brownish-red. Abdomen black; seg- 

 ments 2 — 5 yellow, each with a large semi-circular spot (or crossband 

 attenuated on each side) occupying the whole hind margin ; the segment 

 bearing the ovipositor and the narrow segment preceding it, are yellowish- 

 ferruginous. Coxae yellow, with more or less black at the base, 

 especially on the last pair. Legs more or less dark tawny; tips of 

 femora and tibiae brown. Wings with a pale brownish tinge, which 

 is more saturate in the costal cell and more diluted beyond the stigma; 

 a slight brown shadow at the tip; stigma brown; Petiole of the second 

 post. c. very short. — Two females. 



NB. At first sight, this species is very like the preceding one; it 

 will be easily distinguished by the color of the metanotum and collare 

 and other characters. 



Ctenophora suspirans n. sp. $. — Wings brown, with 

 a white spot in the middle; scutellum black. — Length 14 — 15 mm. 



