1865.] 61 



Legs long and slender, the posterior pair stouter and much longer than 

 the two anterior pairs, dull yellow, the posterior coxae and femora tinged 

 with ferruginous, their tibiae long and subcompressed. their tarsi thick- 

 ened; all the trochanters very elongate, the basal articulation much the 

 longest. Abdomen dull honey-yellow ; basal segment more than one- 

 third the length of the abdomen, linear, subcylindric. slightly thickened 

 at tip, tinged with fuscous above, slightly channelled down the middle 

 and with a robust tubercle on each side before the middle ; ovipositor 

 longer than the body, dull rufous, valves dark fuscous. Length of 

 body 6 lines, of ovipositor 7 lines; expanse of wings 10 lines. 



Male. — Much smaller than the 9 , and pale honey-yellow ; the an- 

 tennae, except the two basal joints, dark fuscous as in the 9 ; the abdo- 

 men more slender, and scarcely broader at tip. Length 4-i lines; ex- 

 panse of wings GjV lines. 



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



Chaonia pallida, n. sp. 



Male. — Entirely and uniformly pale yellowish ; metathorax trans- 

 versely striated ; legs very slender ; wings purely hyaline, beautifully 

 iridescent, the nervures very pale ; abdomen elongate, slender at base, 

 gradually broader and depressed towards the tip, which is rounded. 

 Length 4 lines; expanse of wings 6 lines. 



Collection. — Dr. J. Grundlach. One specimen. 



Resembles the % of the preceding species in form, but is at once dis- 

 tinguished by the very pale uniform color and the pure hyaline wings. 



Division. — Cri/p togastri. 

 Genus CHELONUS. Jurine. 

 Chelonus insularis, n. sp. 



Black, densely sculptured : legs varied with obscure testaceous; a more or 

 less distinct pale spot on each side of the abdomen near its base ; wings hya- 

 line, tin' apical half faintly dusky. 



Opaque black, finely and densely rugose or shagreened, with a very 

 short, fine, whitish, sericeous pile, more obvious on the face and when 

 viewed in certain lights; head transverse, face broad and flat, mouth 

 tinged with piceous ; antenna? about as long as the head and thorax, 

 black; tegulae shining black; postscutellum smooth and polished; me- 

 tathorax with several ill-defined longitudinal carina?, the posterior an- 

 gles rather long and acute. Wings hyaline, the apical half faintly tinged 

 with dusky ; nervures fuscous, stigma black, emarginate near the base 

 beneath. Legs black, the femora, tibiae and tarsi more or less varied 

 with obscure testaceous. Abdomen slightly dilated towards the tip 

 which is broadly rounded, the basal angles rather acute, and on each 



