Squash bee (IMAGE) Penn State Caption A new study led by Penn State found that the squash bee (Eucera pruinosa) has evolved in response to intensifying agriculture — namely squashes in the genus Curcurbita. Credit Carly McGrady Usage Restrictions Educational use only License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.