114 TRANS. ST. LOUIS ACAD. SCIENCE. 



Cylloceria [occidenlalis. Cress., Trans. Am. Ent. Soc. iii. p. 160.]— £. 

 —Black. Head subopaque, with very minute, rather dense, shallow punc- 

 tures and rugae ; labrum more or less exserted, polished. Palpi, except 

 the ist joint, whitish. Antennae f- to quite as long as the body, brown- 

 black, the flagellum sometimes rufous beneath, sometimes entirely rufous ; 

 ist joint of the flagellum 6 times as long as wide ; 2d joint § as long as the 

 ist; the rest rapidly shorter. Thorax polished, with very minute, rather 

 sparse, shallow punctures, the pleura of the mesothorax minutely acicu- 

 late. Metathorax and its pleura opaque, finely and densely rugoso-punc- 

 tate, with 6 longitudinal parallel carina? attaining the lunate area, the 2 

 middle ones the nearest, and the 2 outer ones, one of which is lateral, the 

 next nearest. No cross carinae. Tegulae whitish. Abdomen oval, opaque, 

 with dense rugae, fine on joint 1, minute on 2 and 3; joints 4-8 and the 

 tips of 2 and 3 subglabrous and polished. Joint 1 almost twice as long 

 as wide, \ narrower at tip than is the base of 2, twice as wide behind as 

 before, its sides scarcely convergent for \ of the way from the tip to the 

 base, at which point the tubercle is located, thence converging rapidly; 

 the usual carinas obsolete except at the extreme base. Joint 2 half as long 

 as 1 and $ wider than long; 3-5 a little shorter; the rest short. Oviposi- 

 tor rufous, basally piceous, about § as long as the body; sheaths black, 

 tapered, basally § as wide as the last tarsal joint of the hind legs. Venter 

 excavated, longitudinally carinate, more or less whitish at the tips of the 

 joints. I-egs pale rufous; the tips and sometimes the whole of the hind 

 tibiae fuscous. Wings subhyaline, more or less tinged with smoky yel- 

 low. Veins black; stigma black, its basal \ white. Radial area rather 

 elongate, its posterior angle about 135 . First recurrent vein but slightly 

 crooked, the 2d regularly convex outside. Length $ -36-.43 inch. Front 

 wing 5 -27~.32 inch. Ovipos. .19-. 30 inch. 



The o* differs from ? as follows: — 1. The antennae are brown-black 

 immaculate, more robust, the ist joint of the flagellum scarcely 5 times as 

 long as wide. 2. The abdomen, as usual, is narrower; joint 2 is full twice 

 as long as wide, its carinae are distinct for \ of the way to the tip, and joint 

 2 is nearly square. Length $ -30--35 inch. Front wing o* .25-.30 inch. 



Three % ; three ? . The first N. A. species hitherto recognized 

 as belonging to this genus. But for the great difference in size 

 ($ .15 inch) this might be taken for Anomalon sexli?zeatum. Say. 

 In my smallest ? the ovipositor is " hardly as long as the abdo- 

 men," as described by Say ; in the other 2 ? it is considerably 

 longer. 



Genus LAMPRONOTA, Curtis (= Lissonota, Grav., preoccupied). 



In this genus the venter is longitudinally carinate towards the 

 base, and in Z. breviventris, n. sp., Z. nigrita, n. sp. , and a 

 single specimen of Z. pictiventris, n. sp., the carination is con- 

 tinued nearly to the tip, thus giving the tip of the abdomen a 



