ORTALID^E — MYENNIS. 143 



1. M. scutellaris Wied. £ J • — Cinerea, antenuis flavis, pedibua ex 



fusco testaceis, thoracis margine lateral i atro-maculato, scutello tuuiido ; 

 alae angustae, hyalinae, fasciola basali, fasciis duabus discoidalibus autice 

 connatis, plagaque apicali ex nigro fuscis pictae, praeterea in cellulis 

 margiuali et submargiuali macalis aliquot fuscis variegatae. 

 Vur. % fascia discoidali secunda inter venas transversales late- interrupts. 



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

 margin of the thorax with black spots; the seutellum 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. 0.17—6.18; long. al. 0.17—0.18. 



Syn. Trypeta scutellaris Wiedemann, Auss. Zweifl. II, p. 484. 



Trypeta? scutellaris Loew, Mouogr. of N. A. Dipt. I, p. 92. Tab. II, f. 

 2(j, 27. 



Very 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 

 fovea? 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. Antenna? 

 oehrc-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 humeri 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. Seutellum 

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

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

 more extended. Pleura? blackish-brown, the posterior part vel- 

 lowish-brown. A-bdomen of the male cinereous; the penultimate 

 segment shining-black, more thickly dusted towards the posterior 



