DIPTEBA. 241 



One specimen from Teapa, agreeing with that from Chapada, Brazil, mentioned by 

 me in the above-cited paper 5 . The synonymy of H. Umaculata 6 and H. sexmaculata 7 

 is not certain, as it is possible that one or the other belongs to H. apicalis, an allied 

 species. II. planifrons, Macq., was included by Osten Sacken (antea, p. 42) amongst 

 the unidentified Central- American Stratiomyidae. 



10. Hermetia aeneipennis. 



Hermetia flavipes (Wiedemann, &c.), var. aneipennis, Giglio-Tos, Mem. della Reale Accad. delle 

 Sci. di Torino, (2) xliii. p. 107 \ 

 Hah. Mexico (Sumichrast l ), N. Yucatan (Gaumer). 



Two specimens. The differences which they present from the brief description of 

 E. flavipes given by Wiedemann are too great, in my opinion, to be considered merely 

 varietal. To Giglio-Tos's description 1 it may be added that the eyes are pilose and 

 the third antermal joint in the female is not dilated. 



11. Hermetia lativentris. 



Hermetia lativentris, Bellardi, Saggio etc. i. p. 27, t. 1. f. 9 1 , App. p. 8 2 (nee Willist. Canad. 

 Ent. 1885, p. 125). 

 Hah. Mexico, Tampico (Saussure 1 ), Chilpancingo in Guerrero (H H. Smith), 

 N. Yucatan (Gaumer). 



Ten specimens. The eyes are pilose, the tibiae and tarsi light yellow. The species 

 which I doubtfully referred to H. lativentris in the 'Canadian Entomologist' (I.e.) 

 proves, upon comparison, to be quite distinct. As examples have been obtained 

 from the southern part of New Mexico, not far from the frontier of Mexico, it is 

 highly probable that it will be found to be a member of the Mexican fauna. I there- 

 fore give a description of it below. II. lativentris was included by Osten Sacken 

 {antea, p. 42) amongst the unidentified Central-American Stratiomyidae. 



[12. Hermetia concinna, sp. n. (Tab. IV. fig. 12, $ .) 



Hermetia lativentris, Willist. Canad. Ent. 1885, p. 125 1 (nee Bellardi). 



d" $ . Front and face reddish-yellow, clothed with yellow pile ; a brownish spot on each side of the root of 

 the antennae, sometimes indistinct or absent ; a small black spot at the ocelli. Antennae reddish-yellow, 

 the tip of the third joint and the style black ; style a little longer than the remainder of the antennae. 

 Eyes pilose, with markings as in H. relicta, Osten Sacken (anted, p. 30). Thorax black, moderately 

 shining, the ground-colour obscured beneath bright golden yellow pile ; lateral margins reddish. 

 Scutellum opaque black, the margin reddish -yellow. Pleurae shining black, the mesopleurae reddish and 

 with golden pile. Abdomen elongate, flattened, yellowish-red, with a narrow median black stripe, 

 narrowly interrupted at the incisures and more or less obsolete on the terminal segments. Femora 

 black, the tibiae yellowish ; tibiae and tarsi light yellow. Wings yellow, the distal and posterior portions 

 broadly brownish-yellow. Length 11-16 millim. 



Hah. Noeth America, New Mexico 1 (Snow), Arizona (Morrison, Coll. Univ. of 

 Kansas). 



biol. centr.-amer., Dipt., December 1900. 2 / 



