OF WASHINGTON, VOLUME XV, 1913 133 



ground near Anacostia, D. C , and had been standing but little over a 

 year. A number of the eggs are inserted proximately, often in the 



c 



Fig. 2. Ovipositor of Prionus laticollis Drury, ventral view c, c' cerci. 



pores which are rich in food substances. The larvae upon hatching 

 excavate shallow longitudinal burrows, then enter he wood trans- 

 versely. This habit of living in woo:l below the surface of the 

 ground is shared with species of the Prionidae and doubtless the 

 earth about the wood serves the purpose of retaining moisture as 

 does the bark upon logs under which many beetles insert their eggs. 

 The drawings are by C. T. Greene. 



The following papers were accepted for publication: 



A NEW SPECIES OF SIMULIUM FROM TEXAS. 



BY J. R. MALLOCH. 



Simulium distinctum, new species. 



Mule: Black. Antennae yellow, generally more or less brown toward 

 apices; face with silvery pollinosity; palpi and proboscis black, or brown. 

 Mesonotum deep velvety black, with two silvery pollinose, slightly curved 

 lines, which are broadest at anterior extremities, and extend th3 whole 

 length of disk, meeting at the posterior margin with a cross band of the 

 same color; side margin yellowish, with silvery pollinosity, prescutum yel- 

 low; pleurae opaque gray, yellowish below wing base on the membranous 

 portion of mesopleura; scutellum black; post-notum black with a silky 

 lustre. Abdomen with basal scale velvety black or brown-black, the seg- 

 ment below it yellow, the succeeding three segments deep velvety black; 

 next segment sometimes more or less yellowish, and almost entirely cov- 

 ered with silvery pollinosity, which is also noticeable on sides of next 

 segment; apical segments and hypopygium black. Legs yellow; fore coxa- 

 slightly, mid and hind coxae distinctly grayish; hind femora with apical 

 half blackened; fore tibia? darkened towards apices and, like the other 

 tibia?, whitish on dorsal surfaces; hind tibia? with apical half black; fore 

 tarsi black; mid and hind tarsi with apices of first and second, and whole 

 of third to fifth joints black. Wings clear. Halteres yellow. 



Head normal in shape, the upper eye facets much larger than the lower; 

 face with a few black hairs. Mesonotum with golden pilosity, which is 



