ORTALID^E MYENNIS. 143 



1. M. SClltellaris WIED. J . Cinerea, antenuis flavis. pedibus ex 

 fusco testaoeis, thoracis inargine lateral! atro-maculato, scutello tumido ;_ 

 ala augustae, hyalinae, fasciola basali, fasciis duabus discoidalibus autice 

 counatis, plagaque apicali ex nigro fuscis pictae, praeterea iu cellulis 

 marginal! et subinarginali maculis aliquot fuscis variegatae. 



Far. fascia discoidali secuuda inter venas trausversales late interrupta. 



Cinereous, with yellow antennae and brownish-yellow feet ; the lateral 

 margin of the thorax with black spots; the scutellum swollen; the 

 narrow wings are hyaline ; a small crossbaud at the basis, two cross- 

 bauds, connected anteriorly, upon the middle of the wing and a large 

 spot upon the apex, brownish-black ; moreover several brown spots in 

 the marginal and submarginal cells. 



Var. the second of the two bands upon the middle of the wing, is 

 broadly interrupted in the middle. 



Long. corp. 0.170.18 ; long. al. 0.170.18. 



SYN. Trypeta scutellaris WIEDEMANN, Auss. Zweifl. II, p. 484. 



Trypela f scutellaris LOKW, Monogr. of N. A. Dipt. I, p. 92. Tab. II, f. 

 26, 27. 



Yery like a Trypeta in its general appearance. Head com- 

 paratively high. The under side of the occiput rather tumid. 

 Front yellow, of a medium breadth, long, its anterior margin 

 rather projecting. Face somewhat retreating, a little excavated, 

 infuscated inferiorly, covered with a pale-colored dust ; antennal 

 foveae hardly indicated. Eyes oval. Cheeks brown, very broad. 

 Proboscis not perceptibly incrassated. Palpi short, but broad, 

 of a dusky reddish-yellow ; clypeus small and narrow. Antennae 

 ochre-yellow; the third joint oval, altogether rounded at the end ; 

 arista rather long and bare ; it is thin at the end, but gradually 

 stouter towards the basis. The upper part of the thorax dark- 

 gray from a thick dust; the ground color of the hurneri more or 

 less ferruginous-yellow. Upon the lateral border of the thorax 

 there is an irregular row of, for the most part contiguous, black 

 spots; the largest among them is near the posterior corner; one 

 is higher upon the upper part of the thorax than the others and 

 near the transverse suture. The hairs and bristles are also placed 

 upon very small, and but little perceptible, black dots. Scutellum 

 with four bristles, rather turgid, of a shining dark-brown, with a 

 clay -yellow median stripe; sometimes the clay-yellow color is 

 more extended. Pleurae blackish-brown, the posterior part yel- 

 lowish-brown. Abdomen of the male cinereous; the penultimate 

 segment shining-black, more thickly dusted towards the posterior 



