New Genera and Species of Braconidae. 

 Mostly Malayan. 



By D. T. Fullaway, 

 Entomologist, Hawaiian Board of Agriculture and Forestry. 



In the course of a search for natural enemies of the cane borer 

 (Rhabdocnemis dbscura), conducted by the Hawaiian Sugar 

 Planters in the years 1906-1911, an extensive collection of insects 

 was made by Mr. Frederick Muir, field entomologist on the 

 Planters' Experiment Station staff, as well as by the late Frank W. 

 Terry, assistant entomologist, who also had part in the field work. 

 The Braconidae from this collection were referred to the writer for 

 study, and the present paper describes some of the new genera and 

 species appearing in the collection, the types of which remain in 

 the H. S. P. A. Experiment Station collections, Honolulu. 



Sub-fam. BRACONINAE. 



Platybracon distinctus, n. sp. 



$ 10 mms. long. Ochraceous, depressed, head and thorax 

 smooth and polished, abdomen coarsely rugose, hairy. Head 

 cubical, very wide and flat on top, widely extended behind the 

 eyes, ocelli arranged in an equilateral triangle anteriorly on the 

 vertex, the enclosed space black, the members removed from 

 each other about 1 diameter, from the eye and occipital margin 

 about 8, front excavated, with a median longitudinal furrow, 

 antennal sockets close to eye margin, tuberculate and mar- 

 gined, antennae filiform, 53-segmented, long as the body, 

 black, segments 1 and 2 stout, the 1st with denticulate apical 

 margin, face short and wide, slightly receding, a semicircular, 

 medially carinate plate protruding above foveate beneath, 

 mandibles stout, cheeks moderate but postgenae well developed, 

 palpi filamentous. Thoracic notum flat, metanotum with 

 faint median longitudinal carina, upper half of metathoracic 

 pleurae lying in dorsal plane, mesopleurae produced flatly on 

 the venter. Abdomen short ovate, 1st abdominal segment 

 shorter than wide posteriorly, raised in the middle and longi- 

 tudinally striate, broadly flat on the sides, longitudinally 

 striate within, smooth nearer the edges, 2nd and following 

 segments transverse, 2nd with a raised bicarinate longitudinal 

 middle piece, extending from the anterior margin half the 

 length of the segment, 2nd, 3rd and 4th with a broad oblique 

 crenulate furrow from the anterior margin at lateral fourth to 

 middle of lateral margin, 2nd and 3rd undivided except by a 



Jour. Straits Branch R. A. Soc, No. 80, 1919. 



