NO. 2000. 



TWO FOSSIL INSECTS— COCKERELL. 



583 



Order DIPTERA. 

 Family PHORID.E. 



PARASPINIPHORA LAMINARUM (Brues). 



Phora laminarum Brues, Bull. Amer. Mus. Nat. Hist., vol. 24, 1908, p. 275. 

 This was described from a single imperfect specimen. Three others 

 have been fomid at Florissant, all at station 17, two by Mrs. Cockerell, 

 one by Mr. S. A. Rohwer. From these I have prepared the accom- 



FiG. 3.— Paraspiniphra laminarum. a, diagrammatic figure of middle 



TIBU; 6, PART OF MIDDLE TARSUS, SHOWING ARMATURE; C, PART OF HIND 

 TARSUS, SHOWING ARMATURE; d, SCUTELLUM AND ADJACENT PARTS, SHOWIKQ 



bristles; e, end of female abdomen. 



panying figm-es, which explain themselves, a is from one specimen; 

 6, c, d, from another; e, from the third. All show the character- 

 istic armatm*e of the hind tibiae, resembling that of the recent species 

 P. multiseriata (Aldrich). The modern representative, however, has 

 only two scutellar bristles instead of fom-. 



The new material of P. laminarum shows that the species has well- 

 developed wings. 



Plesiotype.—C&t. No. 59923, U.S.N.M. 



