10 [January 



Female. — Head very large, broader than the thorax, rufous, shining; 

 face broad, slightly pubescent, feebly punctured ; mandibles dusky to- 

 wards the tips; palpi dusky; antennae rather longer than the head and 

 thorax, curled at tips, blackish, the basal joint yellowish. Thorax ru- 

 fous, shining, slightly pubescent; lobes of the mesothorax prominent, 

 uneven, and roughly punctured; pectus somewhat rugose; pleura smooth 

 and polished; scutellum convex, polished; metathorax rugose, rather 

 densely clothed with pale pubescence ; tegulae pale yellowish. Wings 

 hyaline, faintly iridescent, a slight fuscous stain beneath the stigma ; 

 nervures and stigma black. Legs rufo-fuscous, the tibiae and tarsi 

 blackish. Abdomen rather short, ovate, depressed, polished, black, the 

 first segment rapidly narrowed to the base, grooved along the lateral 

 margins, with the basal half pale yellowish ; on the incisure between 

 the 1st and 2nd segments, a rather large and deep fovea on each side 

 of the middle, with a pale spot between the fovese ; ovipositor longer 

 than the body, rufous, valves black. Length 3 lines; expanse of wings 

 4J lines. 



Collection. — Dr. J. Grundlach. Two specimens. 



Genus TRIGONALYS. Westwood. 



Trigonalys Gundlachii, n. sp. 



Black ; most of head, collar, front of mesothorax, both scutellums, two spots 

 on metathorax, legs and the apical margins of the abdominal segments, yellow ; 

 wings with the costal half fuscous, the rest hyaline. 



Male. — Black, slightly pubescent ; head densely and somewhat con- 

 fluently punctured, shining; broad frontal orbits, the cheeks, a spot 

 above the base of each antenna slightly confluent with the orbits, cly- 

 peus, except its lateral margin which is black and slightly emarginate, 

 and a large spot on each mandible, yellow; palpi pale dusky, blackish 

 at base; antennae as long as the head and thorax, 25-joiuted, the basal 

 joint very robust and bright yellow, the 13 or 14 following joints ful- 

 vous, remainder blackish, the apex very slender. Thorax rugosely 

 punctured, opaque; mesothorax with two deeply impressed longitudinal 

 furrows, slightly converging on the scutellum ; collar, a large bilobed 

 mark on each side of the prothorax bordering on the mesothorax and 

 covering the tubercles, two rather large subtriangular spots on the me- 

 sothorax anteriorly, slightly converging behind, each spot bordering on 

 one of the longitudinal dorsal furrows, a minute spot on each extreme 

 anterior corner of the mesothorax, and a small spot on each side of the 

 pleura beneath the wings, all yellow; scutellum yellow, the space on 

 each side black with a triangular yellow spot near the base of the wings; 

 the postscutellum and its sidepieces also yellow; metathorax black, 



