350 rilOCEEDINGS OF THE NATIONAL MUSEUM. vol. xxxii. 



STIPATOR ATELOPLOIDES, new species. 



Description. — Female, head iiioderatel}" lar^e and well inserted into 

 the pronotum; vertex prominent and narrow, searceW one-half as 

 broad as one of the eyes; interocular space as broad as one of the eyes; 

 eyes moderate in size and prominence, slightly longer than broad, 

 Pronotum large and posteriori}- well produced, but the lateral lobes 

 are poorly developed, being so shallow as to give the insect a distinct 

 resemblance to members of the genus Atelopliis. The posterior mar- 

 gins of the lateral lobes are scarcely sinuous and the lateral and 

 median carinie are not indicated. Pronotal disk regularly rounded, 

 subtruncate both anteriorly and posteriorly, not much broader behind 

 than in front, marked across the middle of the anterior half b}' a 

 slight transverse sidcus. Prosternum armed with a pair of short 

 erect spines. Legs stout; posterior femora much swollen on the 

 basal two-thirds, armed below on each margin with a few short, stout, 

 black spines; antei'ior tibijB armed above on the outer side with three 

 spines; middle tibiw armed above on both margins; anterior and inter- 

 mediate femora armed below on one side only with two or three short, 

 stout spinules. Elj^tra and wings wholly aborted. Abdomen plump, 

 obscurel}^ carinate above; cerci short and stout, about two and one- 

 half times as long as the basal width and tapering to a point. 

 Ovipositor two-thirds as long as the posterior femora and curved 

 moderately upward. General color pale yellowish with the spinules 

 of the femora ])lack, those of the tibiae black at the base and at the 

 tip; abdomen sprinkled with nearly microscopic round, black spots, 

 the posterior margin of each segment with a row of the largest ones, 

 and marked on the side at the base with an elongate fuscous patch 

 which extends back to about the middle of the abdomen. This fuscous 

 patch is the continuation of a lateral thoracic band which bends 

 upward on the middle of the pronotum, leaving the lower margin of 

 the lateral lobes j'^ellow and giving the pronotal disk a cleps3'drate 

 appearance. The anterior and intermediate femora and tibiie are 

 splotched with fuscous, the former apically, the latter basally. 



MeasuremenU. — Length, pronotum, 7 mm.; posterior femora, 20; 

 ovipositor, 18; width, posterior femora at widest point, 4.5, at nar- 

 rowest point, 1,5. 



Type.—QdX. No. 10172, U. S. National Museum. 



Specimens exai timed. — One female, the tA^pe, San Jose del Cabo, 

 Mexico. Presented by Professor Bruner. 



This species is in general appearance an aberrent member of the 

 genus, though in general structure it is unmistakabl}- a Stljmtor. The 

 less slender posterior femora, and especialh" the shallow lateral lobes 

 of the pronotum, give it much the appearance of an Ateloplus, but the 

 armed prosternum prohibits its reference to that genus. 



