30 E. T. CRESSON. 



ceous pubescence on each side behind each posterior wing; tegula? piceous ; 

 wings yellowish, dusky on costal margin, especially beyond stigma; legs sliort, 

 tips of anterior femora within, their tibiae within and their tarsi pale yellowish : 



intermediate legs ; upper edge of the posterior coxae, a spot beneath at 



tip, a spot on trochanters beneath, upper edge of their femora, a line beneath 

 before the teeth, dilated basally, a stripe on their tibiae behind, not reaching the 

 base, and their tarsi, pale yellow; femora small, ovate, polished within, teeth 

 numerous and minute except the basal one which is largest; abdomen as long 

 as head and thorax, clavate, being slender at base and much swollen at apex, 

 incisures of segments indistinct ; first segment narrow, slightly dilated and con- 

 vex at base and somewhat contracted before apex ; second segment narrowed 

 at base, the apex of the third (?) margined with silvery sericeous pubescence; 

 fouxtb (?) segment with dense silvery sericeous pile, converging towards the 

 disk : apical segment very small. Length .47 inch. 



Eab. — Mexico. One specimen collected by Prof. F. Sumichrast. 

 The shape of the abdomen recalls that of some species of the Dipterous 

 genus Conops, although rather more strongly clavate. 



2. Leucospis apicalis, n. sp. 



£ . — Dull black, tinged with brownish, densely punctured, face with short 

 silvery pubescence, clypeus, mandibles and scape beneath pale ferruginous; 

 prothorax at sides and posterior margin more or less brown ferruginous, a trans- 

 verse raised, sometimes pale line before posterior margin; scutellum brownish 

 posteriorly: metathorax with pale golden pubescence; tegulae dull fulvous; 

 wings blackish, apical third hyaline ; legs more or less tinged with brown, pos- 

 terior femora immaculate, with about nine short, robust, obtuse teeth ; abdomen 

 elongate, slightly compressed at tip, subsericeous, immaculate, more or less 

 tinged with brownish, especially at apex, densely punctured, shining later- 

 ally; ovipositor reaching to tip of scutellum. Length .40 inch. 



Hah. — Mexico. Prof. Sumichrast. Two specimens. Easily re- 

 cognized by the immaculate dull black body and the blackish wings 

 tipped with hyaline. 



3. Leucospis niexicana. 



Leucospis mexicana, Walk. Jour. Ent. i, p. 20, J . 



Hah. — Mexico. Prof. Sumichrast. Three 9 , one % , specimens. 

 The thorax and apex of abdomen of $ is strongly metallic green, 

 clothed with short pale sericeous pile ; face pale ferruginous, with a 

 silvery pubescence, as well as posterior orbits ; a band of pale silvery 

 green pubescence behind scutellum ; base of abdomen with a smooth 

 polished excavation ; posterior coxae smooth and polished on the 

 outer flat surface; their fomora with six to eight small teeth beside 

 the large obtuse basal tooth. The % seems to accord tolerably well 

 with Westwood's description and figure of MetaUopsis cayennensis 

 (Germar Zeits. Ent. i, p. 204, pi. 4. fig. 4). The face is pale 

 reddish as in 9 , with a cupreous reflection, while the body is more 



