122 TRANS. ST. LOUIS ACAD, SCIENCE. 



Cress.] by the 3d, 5th and 7th characters given above. From 

 montana, Cress., it differs in the coxa? and trochanters being all 

 rufous not black, by the wings being subhyaline not fuliginous, 

 and by the black tip of the abdomen. 



Lampronota [rabrica, Cress., Trans. Amer. Ent. Soc. iii. p. 165].—$. 

 — Differs only as follows from [^americana, Cress.]: — 1. The size is i 

 smaller. 2. The mandibles are dull rufous, except the tips of their teeth 

 which are black. 3. The orbits are white from the insertion of the anten- 

 nae to the hind end of the vertex. 4. The scutel, the hind i of the meso- 

 thoracic pleura, and the entire metathorax except its anterior edge above, 

 are all rufous; and the tegulae are brownish-white. 5. The longitudinal 

 carinae of the metathorax are represented by 2 parallel striae confluent in 

 front and behind attaining the semilunar cari-na. 6. The abdomen is sub- 

 clavate, and a spiraculiferous tubercle projects very slightly on each side 

 of joint I. 7. The abdominal joint i is entirely rufous, but joints 6-8 are 

 black. Venter yellowish-white. 8. The ovipositor is rufous, and propor- 

 tionally \ longer. 9. The legs are pale rufous, with the middle tarsi and 

 the hind tibiae and tarsi obfuscated. 10. The wings are subhyaline, with 

 the radius rufous ; the stigma is black, brownish-white on its basal J, and 

 only ai times as long as wide. Areolet scarcely peduncled. Length $ 

 .23-.25 inch. Front wing ? .18 inch. Ovipos. .30 inch. 



Two $ ; c? unknown to me. Sufficiently distinct from all de- 

 scribed N. A. species by the black mesothorax and rufous scu- 

 tellum. 



Lampronota nigrita, [Walsh, Trans. Am. Ent. Soc. iii. p. 159]. — (5"$. — 

 Differ from [^ameri'cana, Cress.] $ only as follows : — i. The whole body 

 is black, much more robust, and, except the abdomen, obviously pubes- 

 cent. 2. The head is opaque and, including the mouth, immaculate; the 

 face with long pubescence, and the clypeus opaque and punctate. 3. The 

 metathorax is punctured like the mesothorax, and in (^ the tegulae are 

 sometimes pale dull rufous. 4. The abdomen is immaculate, oval, about 

 4 times as long as wide $ , 5 times (^, subpolished, with very minute, dense 

 punctures, more sparse towards the tip and tips of the joints. Joint i with 

 some rather coarse longitudinal rug:e near the tip, its sides straight save 

 that they are slightly incurved at the extreme base and tip, especially $ ; 

 $ i c? f longer than wide, d* $ I wider behind than before. Joint 2 shorter 

 by I than wide $, square cf ; joint 3 cj' $ a little shorter than 2; the rest 

 rapidly, especially in 5, shorter and shorter. Ovipositor ^ as long as the 

 body, piceous, basally curved upwards; sheaths black, not tapered, as 

 wide as the last tarsal joint of the hind legs. Venter blackish, in 5 a lit- 

 tle excavated and strongly carinate longitudinally to the tip, with joint 6 

 no longer than the dorsum, in (^ excavated. 5. The legs $ are black im- 

 maculate, in a bred $ rufous except all the coxa; and trochanters and 

 the 4 front femora, the tibiae and tarsi with a whitish reflection from 

 dense, short pubescence. Legs cT black, the extreme tips of all the femo< 



