78 BULLETIN 45, UNITED STATES NATIONAL MUSEUM. 



ferentiate this gioii]> from the Bethylinai and the Dryiiiiiite, to whicli it 

 is most closely allied. 



The group is rare and only a few species in it are known, tlieir 

 habits still remaining unknown. From their close structural affinity 

 with the DryiniutC it is not unlikely tliey have similar habits. 



The genera may be distinguished by the aid of the following table: 



TABLE OF (JENERA. 



FEMALES. 



Aiitenuii- 13-joiuteil. 



AVings riuUniciitary ; eyes ilat; ocelli very small; sca}»e iiiuch longer tbau the 



Ihst fuiiiclar joint Pedinomma Forst. 



Wings fully develoiicd. 



Eyes arched; ocelli large; scape shorter tlian the lirst fuiiiclar joint. 



EMliOLKMU.s Westw. 



Antenna' lO-jointed. 



Prothora.x. as long as the niesonotuiu, with a deep median sulcus ; sca))e much longer 



than the lirst llagellar joint A.MPULicOMOKrnA Ashiu., gen. nov. 



Prothorax shorter than the mesouotiim, without a median sulcus; scapi^ much 



shorter than the lirst llagellar joint Embolemus Westw. 



PEDINOMMA lihster. 

 Hyni. Stud., ii, j). 94 (LS."')6). 

 JUifrnucomoijihiDi Westw., Lond. Mag., 18o3, ji. 490. 

 (Type M. riifcscnia Westw.) 



Head rounded, a little oblong, with a frontal tubercle; eyes rounded; 

 ocelli subobsolete. 



Antenn;e 10-jointed, as long as the body, cylindric and llliform, the 

 scai)e as long as the head and longer than the lirst tlagelhir joint. 



Ma.xillary palpi 3-jointed; labial palpi 2-jointed. 



Wings in 9 rudimentary or wanting, the S unknown but i>r()bably 

 winged. 



Abdonu'U ovate, nuu:h longer that the thorax. 



Legs thick, the i)osterior pair long. 



A very rare genus, so iaronly known from Europe, and 1 have been 

 unable to obtain si)ecimens for examination. There is a slight dis- 

 crepancy between Westwood and Fiirster in the description of the 

 ocelli. The former says " without ocelli," the latter that " die Nebenau 

 gen sind sehr klein." Nothing is known of the habits of tlie genus and 

 the male is still to be discovered. 



The name given to it by Westwood was changed by Fiirster on ac- 

 count of its being i)reoccupied in Dii)tera. 



