T. pellucida n. sp. Wholly black. First ^oiiit of antenna' whi e tumentosf. 

 inner side of second joint si very iiollino^e in the nialj. A cluster of appressed whit- 

 ish pile on each side of the front ab )ve the antenn.e. Occiput pale ychowish pilose. 

 Thorax pa'e yellowish p lo-e, the center fulvous tomentose, the bristles black; pleura 

 white tomentose. Alxlonien wliite to nen ose, at the base more yellowish; a row of 

 black spots each side ot the middle, situated on tlie anierlor edges of the se.^ments. 

 diose on the first segment extending the entire length of the segment, those on the 

 second segnitnl coalocing with each other; aUo a row of black spots on each side of 

 the abd'Hien, si.uatcd in the middle of segments, somethimes wanting except on the 

 >econd ani diird segments. Venter white tomento-e. Femora wh.ti^h tomentose. 

 on the tiljia; more yell )wi-h. Knob of halteres whit.sh. Wings hyaline, costal, first 

 and second basal cells somewhat yellowish; three subaiar;.^inal cells; small cross-vein 

 at m (Idle ot ili-cal cell: iro^^-vein at apex of discal eel angular and bearing a >tani]) 

 of a vein which jirojcct^ into the second p. sterior cell. l,engih6--io mm. Cal. 



7d\7 9. 



T. maxima n. >p. Who'.lv b'ack. First j lint of antenn,-e whi:e tomento-e. 

 Fiont, except the apex, wuh d.-n^ely aiipre--sed yellow pile. Occiput yell-w pilose. 

 Thorax yellow pilosj and toinet ise, the bri^ths black; pleura* yellow iiilo-e. Abdom- 

 en l)ri,ht yellow tonien'os-, a row of black spots on each side of the middle, situat- 

 ed on ant-iior eilges of the e ;ments, tlio-e on die second segment coalescing wish 

 each <:>!hcr. Venier sparse whidsh tomentose. more dense on hind edges of the .seg- 

 nienis. Femora and tibi;e pale yellow tomentose. Knob of halteres yellowish. 

 Wing-> hyaline, cos:al, (ir-.t and second basal cells slighdy yellowish; three submarg- 

 inal cells: small cross-vein at last ihiid of discal cell; en ss-vein at apex of discal cell 

 not angular, de-iliiu:e of a stump of a vein. Len;thi6mm. Cal. i y. 



T. virgata U.S. Western Diptera 266. Length 7 — 10 mm. 2 (j", i (J'. Cal.. 

 Tex., (ia. 



T. amphitea Walker. Cat. B. M. 11, 298; O.-S. Western Dipt. 267. Length 

 12 mm. (according to Osten-Sacken 5 mm.), i O, Fla., Middle and So. States. 



Proceedings of the Entomological Club of the A A.A. S. 



(Continued from page 209 (inte.) 

 The Secretar\- then read the following ])aper: 

 L.XRVAL LONGEVITY OF CER'l'AIX COLKOrHOR/E, 



By Maky F. MurtfelDT, Kirkwood, Mo. 



With regard to the life habits of its species no group of the r^neUhc 

 is more interesting than the CoJeophorcE. 



The larviie are all case bearers, the case's being very dense, of a 

 woodv or testaceous appearance and from silk with a large admi.xture of 

 e.xcrementitious matter. Thev vary much in form and, where the larv;v 

 are confined to a single food-plant, the shape of the case mav he regard- 

 ed as an important characteristic of the species. 



Only the head and thoracic segments of the larva- are ever exposed 

 and these alone show co'cir ornamentations. 



