Ko. 2293. PARASITIC CHALCIDOID FLIES— TIMBERLAKE. 165 



Townsend No. 650. The last two series labeled "from (or on) 

 Coccus cacti,'' the first record undoubtedly referring to D. conjusus 

 and the second probably so. 



The name adopted for this species is one used by Dr. L. O. Howard 

 in manuscript. 



Type.— Cat. No. 22037, U.S.N.M. 



13. HOMALOTYLUS AFFINIS, new species. 



Plate 39, fig. 8. 



Female. — Very similar to H. cockerelli, but differing as follows: 

 Head about one-fourteenth longer than wide, the width of the 

 vertex at the posterior ocelli proportionately wider in comparison 

 with the width of head, but practically the same in comparison v/ith 

 the width of frons at the lower corners of eyes, being almost exactly 

 one-sixth more than half that width; the posterior ocelli somewhat 

 farther apart than distance from either to the median ocellus, the 

 ocellar angle about 75°; eyes slightly smaller or narrower than in 

 cockerelli, being hartlly wider on the lower half than above. Anten- 

 nae similar, the pedicel as long as the first funicle joint, together 

 with three-fifths of the second; first funicle joint one-fourth longer 

 than thick, the following becoming slightly shorter and thicker, the 

 sixth about as long as thick; club as long as the last three funicle 

 joints combined, the under side obliquely truncate on the apical 

 two-thirds, rather indistinctly three-jointed, the sutures being visible 

 under high magnification. Mandibles practically the same. Thoracic 

 and abdominal structure as in cockerelli, except that the ovipositor 

 is much more shortly protruded, being about only one-fourth as long 

 as the abdomen. Wings with the ciliary bands practically the same, 

 the subapical hyaline spot a little smaller; the stigmal vein less 

 constricted toward the base, the apex appearing less enlarged; the 

 postmarginal subequal to the stigmal. Sculpture of the head con- 

 siderably more evident than in cockerelli, the punctures hardly 

 larger except possibly on the vertex, but more deeply impressed, 

 the pin punctures rather more numerous; axillae and scutellum with 

 evident punctulate sculpture about as in flaminius; the first tergite 

 of the abdomen with the reticulations much longitudinally narrowed 

 on the sides, becoming gradually transversely lengthened across the 

 base, and a little coarser and more equilateral on the medio-apical 

 part; sculpture othei-wise of the usual type. Length of body (1 .39 to) 

 1.70; length of head, 0.587; width of head, 0.538; width of vertex, 

 0.185; length of eye, 0.434; width of eye, 0.230; length of antennae, 

 1.26; widthofmesoscutum, 0.540; length of forewing, 1.32; width of 

 forewing, 0.500; length of ovipositor, 0.227 mm. 



Head nearly Mars yellow (R.), the clypeal margin more yellowish, 

 the frontovertex more brownish with an obscure bronzy metallic 



