ORTALID^E STICTOCEPHALA. 139 



dorsura consists of ten small spots, the inner ones among which 

 are sometimes dissolved into dots, and moreover, on each side7 

 of a row of spots, almost coalesceiit into an irregular longitudinal 

 stripe, closely approximated to the exterior margin ; upon the 

 pleurae there are two irregular longitudinal stripes ; the pectus 

 itself is brownish-black without any paler pollen or paler picture. 

 Abdomen with a whitish-gray pollen, with brownish-black clots 

 and with four longitudinal rows of brownish-black spots, placed 

 upon the anterior portion of the segments ; between them, upon 

 the middle of the third and fourth segments, there are two still 

 smaller spots upon the posterior portion of these segments. The 

 first segment of the ovipositor is brownish-black, opaque, without 

 any whitish-gray pollen and without picture. Feet brownish- 

 black, sometimes only dark-brown in not fully colored specimens ; 

 knees, a ring in the middle of the tibiae and the tarsi clay -yellow; 

 usually the last three joints of the front tarsi and the last two on 

 the posterior tarsi, are more or less infuscated. Halteres 

 yellowish-white. Wings hyaline, rather whitish when viewed 

 obliquely, their picture consisting partly of a black, partly of a 

 clay-yellow or brownish-yellow coloring; there are four deep- 

 black spots upon the costa; the first is composed of the incrassated 

 humeral crossvein, and a short line, immediately beyond it, 

 between the costa and the auxiliary vein, so that it has the shape 

 of a fork, or almost of a ring ; below the humeral crossvein, as 

 well as below the small arcuate crossband, there are small black 

 dots (one under each) ; the second deep-black 'spot on the ante- 

 rior margin lies in the costal cell, but little beyond the end of the 

 small basal cells ; it is circular ; between it and the third spot 

 on the anterior margin, there is a small deep-black dot, placed 

 at the end of the auxiliary vein; the third, likewise deep-black 

 spot on the anterior margin, lies on the end of the subcostal cell 

 and reaches the second longitudinal vein ; the fourth spot on the 

 anterior margin lies before the end of the marginal cell ; inside 

 of this cell it is deep-black, but turns beyond it into brown and 

 further into yellowish-brown ; it ends in the middle between the 

 third and fourth longitudinal veins, thus assuming the shape of 

 a perpendicular crossband, which is broader at its anterior end. 

 At the apex of the wing there is another black spot, which begins 

 immediately beyond the termination of the second longitudinal 

 vein and extends but little beyond the end of the fourth longitu^ 



