28 ZYGMXIVJE. 



ERRUCA, Walker. 

 Errnca deyrolii. (Plate XII. fig. 6.) 

 Laeniocharis deyrolii, Henich-Schaffer, Aitssl. Schmett. figs. 2-17, 251 a. 



Wings testaceous hyaline, veins and margins black : primaries sometimes with the apex 

 black ; costal and interno-basal areas ochraccons. Body black-brown ; frons white-spotted ; 

 a white dot on each shoulder ; abdomen with lateral series of white dots ; the fourth and 

 following segments with a white spot on the centre of their hind borders : body below brown, 

 venter with lateral series of white spots. Expanse of wings 1 inch 7 lines. 



Rio Grande. 



MYRMECOPSIS, Newman. 



Myrmecopsis tarsalis. (Plate XIII. fig. 1.) 



Glaucopis (Pseudosphex) tarsalis, Walker, Cat. Lep. Bet. i. p. 196. n. 98 (1854). 

 Myruiocopsis tarsalis, Butler, Journ. Linn. Soc., Zool. xii. p. 380. n. 1 (1870). 



Wings testaceous hyaline, with the veins and margins brown ; a broad olive-brown purple- 

 shot costal streak, best marked on primaries ; discocellulars of primaries and a short dash on 

 the middle of the costa blue. Body black ; palpi below and inner margins of trochanters and 

 femora white ; tarsi testaceous. Expanse of wings 1 inch 3 lines. 



Para (Bates). 



Like a Eumenes. 



Myrmecopsis semihyalina. (Plate XIII. fig. 9.) 



Glaucopis (Pseudosphex) semihyaliua, Walker, Cat. Lep. Het. i. p. 197. n. 99 (1854). 

 Myrmecopsis semihyalina, Butler, Journ. Linn. Soc, Zool. xii. p. 3S0. n. 2 (1876). 

 Pseudosphex vespiformis, HerrlaJi-Sehaffer, Aussl. Schmett. fig. 425. 



Wings pale testaceous hyaline, veins and marginal edges black : primaries with the basi- 

 costal area (excepting a basal spot below the cell) broadly brown purple-shot; the middle of 

 costa and the discocellulars blue ; secondaries brown to near the base, shot with dull blue 

 on the outer margin. Body black ; abdomen bluish, with a minute blue dot on each side of 

 the basal segment, the latter pinkish sericeous below; Irons and pectus bluish; tarsi sordid 

 white at the base. Expanse of wings 1 inch 8 lines. 



Para (Bates). 



GYMNELIA, Walker. 



Gymnelia laemvus. (Plate XII. fig. 8.) 



Glaucopis (Gymnclia) lamnus, Walker, Cat. Lep. Set. i. p. 154. n. 21 (1S54). 



Wings hyaline white, veins and borders black : primaries with a short black bar upon 

 the discocellulars ; secondaries with a black band from the costa, across the discocellulars, to 



