. Bulletin. Fig. 9. Fig. 10. Dr. Fitch describes this fly as follows : It has a considerableresemblance to the common house fly, though when the two are placedside by side, this is observed as being more slender in its form. Thetwo sexes are readily distinguished from each other by the eyes whichin the males are close together, and so large as to occupy almost thewhole surface of the head, whilst in the females they are widely separ-ated from each other. These flies are of an ash gray color,with the headsilvery, and a rusty black stripe between the eyes, forked at its hindend. And this species
. Bulletin. Fig. 9. Fig. 10. Dr. Fitch describes this fly as follows : It has a considerableresemblance to the common house fly, though when the two are placedside by side, this is observed as being more slender in its form. Thetwo sexes are readily distinguished from each other by the eyes whichin the males are close together, and so large as to occupy almost thewhole surface of the head, whilst in the females they are widely separ-ated from each other. These flies are of an ash gray color,with the headsilvery, and a rusty black stripe between the eyes, forked at its hindend. And this species is particularly distinguished by having a rowof black spots along the middle of the abdomen or hind body, whichsometimes run into each other, and then forming a continuous row of spots is quite distinct in the male, but in the female isvery faint, or is often wholly imperceptible. This fly measured inches in length, the females being usually rather larger thanthe males. The eggs are
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