ODYNERUS. 243 



79* O. C^alifornicus Sauss. (PI. 1 IT. fig. 17, 17 a)— Merlins, niger, 

 fulvo-touaentosus ; clypeo 9 piriformi valde punctato ; thorace lsevi, 

 tenuiter punctato ; metanoto baud rngoso, biangulato, sed canthis obli- 

 terans, nee acutis, nee rugosis ; abdomine conico, segmentis 20 et seqnen- 

 tibua in inargine rugose punctatis ; fascia arcuata summi clypei, pionoti 

 et abdominis segmentorum 1', 2' limbo, macula subalari, punctis 2 in 

 tegulis, post-scutello et rnetanoti cantbis, luteis ; antennis froute et 

 pedibus immaculatis ; alis diaphanis, venis fuscis. 9 • 

 Odi/n. Califomicus, Sauss. Rev. et Mag. de Zool. XXII, 1870, 57, 9, 9. 

 Total lengtb, 11 mm. ; wing, 9 mm. 



9. Size and form of the 0. foraminatus, clypens pyriform, 

 strongly punctured, terminated by a little border channelled by 

 a fossettc and appearing bidentate. Head finely punctured. 

 Thorax not retracted before, its surface smooth, shining, bearing 

 some quite line, separated punctures (at times effaced, especially 

 in the middle of the mesothorax and of the scutel); post-scutel a 

 little pad-shaped, finely crenulate (or smooth); metathorax not 

 rugose above ; its concavity wide, smooth, and shining, finely 

 striate ; it occupies the whole width, but its ridges are rounded, 

 or at least blunted, not salient on the summit (although delicately 

 formed), but smooth, not rugose, nor cribrose ; on each side an 

 angle, blunt or even rounded, according to individual specimens. 

 Abdomen quite conic; the first segment truncate, but without 

 sharp ridge; the second offering along its border a flat impressed 

 band, carrying a narrow band of very coarse punctures, but the 

 extreme border smooth. The following segments strongly punc- 

 tured. 



Insect black, clothed on the head and thorax with a strong pile 

 of tawny or grayish hair; its hair very abundant on the meta- 

 thorax. A spot on the mandibles, an arcuate band (or two spots) 

 on the summit of the clypeus, a regular border on the prothorax, 

 a spot under the wing, post-scutel, ridges of the metathorax. and 

 a border on the iirst two segments of the abdomen (the first 

 widened on its sides), of a pale yellow; antennae and legs entirety 

 black; tin 1 tarsi ferruginous toward the end only. Wings trans- 

 parent, a little smoky; nervures brown. Wing scales having two 

 yellow spots; their middle occupied by a brown spot 



Var. a. Two yellow spots on the extremity o( the clypeus. 



b. Inner border of the orbits, a spot on the front, a dot behind 

 each eye, two dots on the angles of the scutel. a spot on the 



