October Butterfly is the tenth pattern in the 2026: A Year of Butterflies series of large squares. Each month’s design can be made using interlocking crochet or overlay mosaic crochet.

“October Butterfly” is a Red Postman Butterfly. It’s another butterfly that I don’t get to see in Canada but it has such an interesting shape that I wanted to include it in our series!

See more about this year’s monthly square at https://ashleeslint.com/year-of/2026-year-butterflies/.

The Locked Filet Mesh (LFM) interlocking crochet method uses only chain spaces and double crochets to create a mesh; two colors are worked alternately which creates the pattern. YouTube Tutorials

Mosaic crochet uses single crochet and double crochet stitches. The double crochet stitches cover some of the other color’s single crochet stitches to create the design. YouTube Tutorials
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Interlocking crochet / LFM crochet file

• line-by-line written pattern
• one-page & multi-page charts (for viewing on a screen or printing) Interlocking Crochet Details
• Chart: 81 x 81
• Gauge: 8 (dc, ch) x 8 rows = 4”
• 20” x 20” / 51cm x 51cm
• 4.5 mm hook (US7)
• Worsted weight yarn (490 - 565 yards total)
  • Main color (MC) (black suggested) – 250 yards plus 75 for optional border
  • Accent color (AC) (background) – 240 yards

Overlay Mosaic Crochet file

• line-by-line written pattern
• instructions for optional envelope border
• instructions on reading an x-marked chart
• one-page & multi-page charts (for viewing on a screen or printing) Mosaic Crochet Details
• Chart: 77 x 77
• Gauge: 14 sc blo stitches x 15 rows = 4”
• Size without fringe or border: 22” x 20” / 56cm x 52cm
• 5 mm hook (H-8)
• Worsted weight yarn (610 - 860 yards)
  • Main color (black suggested) – 240 yards
  • Contrasting color (background) – 370 yards
  • Optional envelope border - 250 yards

“October Butterfly” was tested by CrochetCarob, CynCityCrochet, Divya Tellakula, Erin Carlson, Henriette Van Wyk, Kim, Marie Sparks, Monique, On a Poad Trip, Sonjia Schultz, and Steffi.

US Crochet Terminology

©️ Ashlee Brotzell 2026.
All rights reserved. This publication is protected under federal copyright laws. Reproduction or distribution, in whole or in part, in any medium, is strictly prohibited.

What does this mean?
This is an original pattern by Ashlee Brotzell. You may not copy, reproduce, sell, or share any part of it whether for profit or not. This includes, but is not limited to, the written pattern, the chart, and the photos. No translations or video tutorials are allowed.

Sales of your finished items are, of course, unrestricted (and I wish you all the best!). I appreciate credit given to the designer when possible but it is not a requirement. You may tag me @AshleesLint or direct people to my website www.ashleeslint.com