68 Mr. R. E. Turner's Notes on the Thynnidm, 



segment, a small spot at the apex of the median segment, a large 

 round spot on each side of the six basal abdominal segments, usually 

 very narrowly emarginate at the base, a spot on each side of ventral 

 segments 2-5, and the coxaj and femora beneath bright yellow ; the 

 spines of the tibice testaceous. Wings hyaline, nervures black, the 

 stigma ferruginous. The third cubital cell is very much longer 

 than the second, and receives the second recurrent nervure at about 

 one-third of the distance from the base. 



Length 13 mm. 



9 . Mandibles simple, without teeth. Clypeus broadly emarginate 

 at the apex. Antenna) inserted close to each other, with a small 

 deeply-hollowed space on each side above the base nearly reaching 

 the eyes. Head in front more than half as broad again as long, 

 strongly rounded posteriorly, very closely and finely punctured, 

 with a short, median, frontal sulca. Maxillary palpi six, labial 

 palpi four -jointed, shorter and more slender than in the male. 

 Thorax finely and sparsely punctured ; the prothorax subcylindrical, 

 longer than broad, slightly narrowed posteriorly, the anterior margin 

 straight ; the prosternum produced anteriorly and forming a neck 

 for the attachment of the head which is widely separated from the 

 pronotum. Median segment obliquely sloped from the mesonotum, 

 the surface flat and almost smooth, with a delicate carina from the 

 base to the apex and the lateral margins slightly raised, broadened 

 from the mesonotum. Abdomen strongly convex, much broader 

 than the thorax, shining and very sparsely punctured ; the basal 

 segment narrowed and rather short, the apical margin depressed, 

 most broadly at the sides ; second segment with two transverse 

 carinas, the apical margin also raised, the carina nearest the base 

 curved at the sides ; the following segments narrowly depressed on 

 the apical margin. Pygidium truncate posteriorly, the surface of 

 the truncation small and subtriangular, with a tuft of hairs on each 

 side ; the hypopygium expanding and rounded at the apex. 



Black ; the mandibles, antennae, legs, pygidium and the carinae 

 on the second abdominal segment ferruginous brown ; a large semi- 

 circular spot on each side above the base of the antennae and the 

 anterior and intermediate femora beneath pale yellow ; the apex of 

 the second abdominal segment and the sides of all the segments 

 testaceous. 



Length 8 mm. 



Hob. Urubamba, Peru, 9000-10,000 feet. 



It may be necessary to form a new genus for this species 

 and the next, but it is certainly not advisable to do so 

 while the female of typical Tclephoromyia is unknown. 



