260 ENTOMOLOGICAL NEWS. [Sept., 'o6 



pleura and below pure white. Prothoracic spine large, Jong, sharp and 

 rather conspicuous. Punctures of mesothorax coarse, round and deep, 

 crowded anteriorly, more separated posteriorly, on a large disk few or 

 none. Punctures of scutellum like those on anterior mesothorax only 

 slightly coarser, anteriorly a shining less punctured line, postscutellum 

 rough. Superior face unusually well defined on metathorax, the pits very 

 regular, polished, longer than broad. Enclosure subtriangular, the neck 

 and lateral extensions of the bowl about equal, the whole very smooth 

 and polished. Surrounding sides shining, feebly punctured and with 

 broken feeble reticulations. Mesopleura punctured like anterior meso- 

 thorax. Tegulae dark testaceous. Wings perfectly clear, nervures and 

 stigma blackish brown. Anterior coxae with very short, rudimentary 

 spines. Outer tibial spur not pectinate. Claw rufous, medially toothed. 

 Pubescence of legs white, except for golden inner tarsal apical tufts. 

 Abdomen elongate-conical, segment i polished, with a very few scattered 

 very feeble punctures, segment 2 also polished, sparsely indistinctly punc- 

 tured, following segments duller, with coarse but indistinct close punc- 

 tures. Basal segment with long white hair at sides, its apex with a widely 

 interrupted loose white fascia connecting with a broad fascia on base of 2, 

 which with 3-5 is provided with broad, white, apical fasciae, their disks 

 with longer white bristles. Margins of segments not depressed. 



%. Length 10 mm.— Differs from the 9 as follows: Form very slen- 

 der ; clypeus less striately punctured, covered with dense white hair ; 

 pubescence of thoracic dorsum dull yellowish gray paling to white on 

 sides and below ; malar space two-thirds as long as broad ; antennal joint 

 3 shorter than 4, taken with 2 subequal to 4, flagellar joints over twice as 

 long as broad ; punctures of mesothorax much much separate ; those on 

 mesopleura coarse and crowded ; abdomen longer and narrower, basal 

 and following segments more distinctly punctured, more hairy, apices of 

 segments 1-5 distinctly depressed and fasciate, apex with fine brownish 

 red hairs ; claws subapically cleft. 



This species is described from a $ and a 9 type taken April 

 5, 1904, at Fedor, Texas, by Rev. G. Birkman, to whom, in 

 in recognition of his extensive collecting in that locality, I have 

 dedicated it. I have also four 9 paratypes taken May 5, 1901, 

 May 7, 1901, May 1, 1898, and November 10, 1897, thus show- 

 ing the species to be double brooded in that region as is also C. 

 americanus, though the spring brood, flying in April and May 

 is evidently the principal one. I have also a 9 paratype (No. 

 308) from Hamilton County, Kansas, 3,500 feet, collected by 

 Prof. F. H. Snow. The species seems to come nearest to the 

 thoracicus group, but has several characteristics of C. ameri- 

 canus. Types in author's collection. 



