ON THE CIIILorODA OF NORTH AMERICA. 



35 



petite griffe ; mais lea cnisses ne sont point reoflees ni beaucoup plus grosses que celles des autrea 

 pattes, et celles dea partus posterieures n'ont ni Spines ni tubercules,. Les machoirea (ou les mandi- 

 bules dea auteurs) sent brunes, comme le me o ton ou la levre qui aupporte les crochets dea mandibules. 

 point bifide, maia arrondie ii son extrcmitie ; elle n'a point tie dents, mais seulenient 

 deux enforcements lateranx. Les mandibules ou palpes ont leurs articles cylindriquea et rougeatres; 



le dernier article est comme tr j u<- et termine par une pointe ou onglet. Les antennes sont alien 



quand on les renverse en arriere, elles atleignment le millieu du oinquieme segment; lcurs articles 

 courts, renfles, monilifonnes, tres-rtSguliers, presque egaux, soot au norabre de 17. 

 ■■ \pporte de Jersey elans l'Amerique du Nord par M. Milbert. Cette espece differe de 1'Hortensis par des 



pattea beaucoup plus comtes et une tete plus arrondie." 

 Speciea mihi ignota 



[fflbt rti, ( rervais, Apt. iv. p. ■ 



Gen. 5. OPISTIIEMECiA.- n. g. 



Segmenta podophora 21. Ocelli nulli. Labium plerumque dentatum. Scutum postremum maximum, quad- 

 ratuin. altcris multo mojore ; p bn . - Appendioea analea laterales obtusa;. (Figs. 7, 8.) 



0. POSTICA, n. sp. — 0. aurantiaca, capite polito punctato; - basali deprcssione triangulari mediana ; 



labio an' maodibuliaque punctatis; laminis dentalibus aubelongatis, margine antico fere 



lenticulis 6, distinctisj acutis; an tenuis haud utibus, IT articulatis; scutis stemisque 



politis j scut. i postremo subprofunde ■ ce abrupte truncato, medio canaliculate, lateribus 



rotuodatis, marginibus lateralibus valde elevatis; | jtremia brevissimis, subprofunde punc- 



tatis, suboylindriois; articulis basali tibialique sine spinis, supra aubcomplanatis, intus complanatis, 

 margine interiore superiore acute, alteria rotundatis; appendioibus analibus lateralibus angustis, 

 profunde punotatis,postice abrupte truncatis, sine spinis; squama preanali elongata, media vis canalicu- 

 lata. 



From the triangular depression on the basilar segment two sutures diverge poste- 

 riorly. The scuto-episeutal sutures are very distinct, tin' 

 sterno-episternal wanting. The sterna are, however, pro- - 

 vided with a mesian marking, the line of coalescence of the 

 two primitive sterna. The last pair of feet are rather 

 shorter than in the following species, more cylindrical and 

 smoother, especially on their inner surface. The basal joint 

 is rather shorter than the tibial, which is about twice as 

 long as the tarsal. Can this be the same species as Oryptops 

 poslica, Say? It agrees with Mr. Newport's description of 

 bis Theatops poslica, (<'. postica, Say,) except as to the eyes and teeth 

 that Mr. Newport is mistaken as to the possession of eyes? Say certainly did not 

 see them. 



Fig. 7. 



R. — A reproduced leg. 



Is it possible 



Specimen belonging /•> Smithsonian Institution. 

 287 | 1 | Goldsboro, N. C. | Wm. Stimpson, M. D. | | Une. If | 



* OT/3-&I, postice, nrym. 



