24 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. 58. 



POLYSPHINCTA (POLYSPHINCTA) KOEBELEI Howard. 



Polysphinda (Zaglyptus) l-oebelei Howard, Proc. Ent. Soc. Wash., vol. 2, 1892, p. 293, 

 female. Type.— C&t. No. 2,684, U.S.N.M. 



Discussion based on type, two other females, and two males. 



From the description of alhipes Cresson evidently closelj^ allied to 

 that species and v^ery likely merely a darker form. Compared with 

 the description of alhijyes a male and a female from Kansas differ 

 only in color, the abdomen and propodeum being piceous with ter- 

 gites black entirely across the apices, clypeus piceous, and coxae 

 stramineous. These specimens are, however, much paler than the 

 type both in body and leg coloration. 



Female. — Polished with scattered, obscure punctures medially on 

 tergites; clypeus much broader than long, deeply arched basally, 

 broadly rounded and reflexed apically; malar space about half as long 

 as basal width of mandible; face about as long as wide at clypeus, 

 eyes slightly convergent below antennae, very weakly emarginate 

 within; diameter of lateral ocellus, ocell-ocular, and postoceUar lines 

 about equal; temples and vertex rather strongly convex; notauli not 

 especially strong but prescutum very long and low anteriorly; pro- 

 podeum noncarinate but canaliculate medially; first tergite with 

 carinae subobsolete beyond summit; tergites 2-5 strongly tubercu- 

 late laterally, 2-4 with deep apical and basal impressions, interrupted 

 in middle; exserted portion of ovipositor twice as long as first 

 tergite; stigma narrow, radius originating at basal two-fifths; in- 

 tercubitus liaK as long as second abscissa of cubitus; nervellus 

 weakly broken at about the lower third; hind basitarsus as long as 

 next two joints together, last joint slightly shorter than third; an- 

 tennae about three-fourths as long as body. 



Male. — Very like female but more slender; temples nearly flat 

 and less strongly sloping; antennae slightly longer. 



Very variable in color. The type has the head, pro thorax, upper 

 hind angle of mesopleurum, metathorax except pleura, propodeum, 

 and abdomen black to piceous; legs pale testaceous, front pair paler 

 and hind pair darker, with front coxae, all trochanters in front, hind 

 and middle femora at apices, and all tibiae and tarsi above whitish, 

 darker below, hind tibiae and first two tarsal joints fuscous below and 

 at apices. A female from Los Angeles, California, is very nearly 

 typical, while one from Lawrence, Kansas, has the entire pro-and 

 mesothorax testaceous, metathorax sliglitly darker, propodeum and 

 abdomen piceous, the latter with the apices of the tergites black, 

 and the legs pale stramineous, slightly darker basally and with the 

 hind tarsal joints narrowly dark apically. A male from Lawrence, 

 Kansas, is very like the female from the same locality, but slightly 

 darker throughout, the hind tibiae displaying a very faint indication 

 of the color-pattern of the type. A male from Los Angeles, California, 



