AMERICAN HYMENOrTERA. 



227 



base of the externo-median cell ; marginal coll ovate, rounded at, and narrowed 

 to tip. first sul)mrtrginal large, second elongate subquadrate, acutely pointetl to- 

 wards the bas.'. its apical nervure sinuate, and receiving the first recurrent at 

 middle, third subhexagnonal, receiving the second recurrent a little before the 

 apical nervure. which is sinuate, its external angles with abbreviated ncrvures. 

 Legs black, clothed with glittering hairs, calcaria pale. Abdomen ovate, basal 

 se2;m;nit canipanulate, closely punctured, its apical margin clothed with pale 

 yellowish pubesi^ence, second segment shining, moderately closely punctured, 

 interspersed with a few erect hairs, the apical margin adorned w'ith a band of 

 pale goldon pubescence; apical segments black (?) Length 5i lines, expanse 

 of wings lOJ lines. 



Hab. — Florida. Harris Collection. This species agrees with Fabri- 

 cius' description of M. (^Psammofherma) Jiabellata, while St. Far- 

 gcau describes the second abdominal segment as rufous. They can 

 scarcely be identical, the latter spacies biing from Senegal. 



Subgenus MUTILLA. 



This subgenus is readily distinguished by the ovate eyes, more or 

 less acutely emarginate within in the males, but entire in the females. 

 The species, which are not numerous, may be divided into three di- 

 visions, viz : — 



Division I, — Neuration of anterior wing as rejiresented by figure 1, the first 



Fig. 1. Fig. 2. Fig. 3. 



abdominal segment small, but gradually dilated to apex, where it is sessile 

 with the base of the second segment, as in figures 4 and 5. 



Dioision II. — Xeuration of anterior wing as represented by figure 2; the first 



Fig. 4. Fig. 5. Fig. 6. Fig. 7. Fig. S. Fig. 9. 



abdominal segment small, subnodiform, or subquadrate, as in figures 8 and 9. 

 Division ///.— Neuration as represented by figure 2. except that the third 

 submarginal cell is obsolete; first abdominal segment as in figure 7. 



DIVISION 1. 

 2. Mutilla Briaxus. n. sp. 



Male. — Black, head rounded, finely punctured, thinly clothed with erect 

 hairs, eyes large, ovate emarginate. Thorax elongate, subquadrate, anterior 

 angles subacute, closely punctured, disc of mesothorax with four longitudinal 

 lines, the two central ones impressed, scutellum rounded, metathorax coarsely 

 reticulate, dorsal groove extending to the middle. Tegulie finely punctured. 

 Wings ample, fuliginous, with a violet iridescence, marginal cell elongate 

 ovate, truncate at extreme tip, second submarginal gradually narrowed to 



