1S64.] 171 



rufous, the elevated lines and central area obsolete, the latter almost 

 entirely so. Wings hyaline, very fiiintly tinged with fuliginous, iride- 

 scent; nervures and stigma fuscous, the latter paler; areolet 5-angular. 

 Legs yellowish-rufous ; trochanters and band on the tibiae, subobsolete 

 on the two anterior pairs and very distinct on the posterior pair, yellow ; 

 posterior coxae, femora and base and apex of their tibiae, piceous. Ab- 

 domen subovate, shining, pale rufous; basal segment rather broad, 

 bilineated, basal foveae of the 2nd segment obsolete ; apical segments 

 smooth and polished, the last segment with a yellowish tinge ; oviposi- 

 tor not exserted. Length 3^ lines; expanse of wings 6 lines. 

 ir«i.— Delaware. Dr. T. B. Wilson. 



5.3. Ich. pusillus, n. sp. 



Yellowish-rufous, the thorax partly blackish ; anteniise with a white annu- 

 lus : seutellum and subobsolete bands on tibise, yellowish: wings clear; cen- 

 tral area of metathorax obsolete. 



Female. — Yellowish-rufous, rather slender, shining; antennae more 

 than half the length of the body, involute, rufo-piceous, the 9th to 15th 

 joints white, basal joint robust, rufous. Thorax pale rufous above, 

 blackish beneath ; seutellum flat, polished, yellow, with a rufous spot 

 behind ; metathorax densely punctured, blackish, rufous behind, the 

 elevated lines and central area obsolete. Wings hyaline, iridescent; 

 nervures and stigma fuscous, the latter paler; areolet 5-angular. Legs 

 yellowish-rufous, all the tibiae with a subobsolete yellow band, more 

 obvious on the posterior pair. Abdomen elongate-subovate, polished, 

 yellowish-rufous, the last segment tinged with yellow ; ovipositor not 

 exserted. Length 2^ lines ; expanse of wings A^ lines. 



iTai.— Delaware. ' Dr. T. B. Wilson. 



Closely allied to Ich. (inmdipes, but is smaller, much less robust, and 

 paler in color, with the antennse rather longer. 



54. Ich. longulus, n. sp. 



Yellowish-ferruginous; face and seutellum, yellow; incisures of abdomen 

 above black; wings subhyaline; central area of metathorax rather large, 

 quadrate. 



Mdle. — Yellowish-ferruginous, subopaque ; face beneath the anten- 

 nae, clypeus, labrum, mandibles and lower part of the cheeks, yellow ; 

 antennae porrect, half as long as the body, black, basal joint yellowish- 

 ferruginous, paler beneath. Thorax polished, sparsely punctured ; 

 metathorax slightly stained with fuscous ; tegulae, a sutural line before 



