AKT. 21. NEW SPECFES OF ICHNEUMOlSr-rLIES CUSHMAN. 5 



In practically lacking the longitudinal carinae on the propodeiim 

 Aniydraulax resembles the Cryptini, but its other characters ally it 

 more closely to the Phygadeuonini-Hemitelini, while the almost ab- 

 sent sternauli are unusual in either tribe. 



Female. — Head transverse ; temples strongly narrowed ; eyes short 

 and broad, divergent below within; malar space long; face about 

 twice as broad as long with a median rounded elevation flanked by 

 longitudinal depressions ; clypeus broad, separated by elevation from 

 face, the apex impressed on each side, the median, unimpressed por- 

 tion faintly emarginate ; antennae extremely slender, filiform, nearly 

 as long as body, first joint of flagellum in genotype about 10 times 

 as long as thick, the others decreasing rapidly in length until near 

 the apex they are but little longer than thick; maxillary palpi slen- 

 der, reaching beyond apex of front coxae ; thorax long, subcylindri- 

 cal; notauli impressed anteriorly; sternauli very faint; scutellum 

 slightly convex, propodeum with the transverse carinae strong but 

 the longitudinal carinate mostly lacking, basal area and areola com- 

 pletely defined, the latter weakly so at sides and pentagonal, the 

 former large and triangular, spiracles small, round; propodeum and 

 metapleurum sharply separated ; legs, especially tarsi, slender, basi- 

 tarsus about as long as other joints combined and fully half as long 

 as tibia, calcaria short; wings immaculate, radius slightly beyond 

 middle of stigma, areolet complete but with second intercubitus 

 largely bullated, discocubitus with a distinct ramulus, second dis- 

 coidal cell broad at base, second recurrent with bulla broadly inter- 

 rupted, nervulus postfurcal and inclivious, nervellus inclivious and 

 broken below middle ; abdomen hardly longer than head and thorax 

 combined, compressed from base of third tergite, strongly so at apex ; 

 petiole and postpetiole not distinctly separated, the sides of the first 

 tergite slightly arcuate, spiracles just behind middle; first tergite 

 longer than second, second and third subequal, others becoming 

 rapidly shorter; ovipositor long, very slender, slightly compressed, 

 apex barely lanceolate, little deeper than middle. 



Male. — Unknown. 



AMYDRAULAX PULCHRA, new species. 



Female. — Length, 8 mm. ; antennae, 8 mm. ; ovipositor, 6 mm. 



Head slightly wider than thorax; with short, rather dense, white 

 pubescence; temples and vertex behind shining, almost without 

 sculpture; frons granulate above, minutely punctate at sides, pol- 

 ished below, with a shallow furrow above and between antennae ; face 

 twice as broad as long, densely, minutely punctate, and with an elon- 

 gate tubercle between antennae ; clypeus twice as broad as long, punc- 

 tate basally, polished and with a few large punctures dically ; mandi- 

 ble punctate ; cheeks and malar space punctate, the latter subequal to 



