The Life History and Seasonal Occurrence of the Peach Twig Borer in Texas1

1960 ◽  
Vol 53 (4) ◽  
pp. 680-681 ◽  
Author(s):  
D. R. King ◽  
T. E. Denman
1982 ◽  
Vol 13 (2) ◽  
pp. 225-235 ◽  
Author(s):  
Loren K. Russell

AbstractThe egg, larva, and pupa of Caurinus dectes are described and illustrated. Eggs are ellipsoidal, coated with black cement, and are attached to bryophytes. The larva is orthosomatic, with much-reduced thoracic legs, and further differs from other larval Boreidae in: amphipneustic spiracles, number of stemmata (7), placoid sensilla present in membrane of first antennal segment, and egg burster on frons in first instar. Three larval instars are recognized from analysis of head measurements and partial rearing. Larvae feed in stemmines or galleries in leafy liverworts (Jungermanniales). Pupation occurs in a silk-lined cell or cocoon, otherwise unknown in the Mecoptera; the pupa is exarate, with decticous mandibles. The seasonal occurrence of egg eclosion (February-March), pupation (July-August), and principal adult activity (October-April) is typical for the Boreidae, but only C. dectes is univoltine in this family. Successive annual generations appear to overlap through extended egg diapause and adult perenniation.


2014 ◽  
Vol 97 (9) ◽  
pp. 1039-1056 ◽  
Author(s):  
Kim Bassos-Hull ◽  
Krystan A. Wilkinson ◽  
Peter T. Hull ◽  
Dean A. Dougherty ◽  
Kristen L. Omori ◽  
...  

2019 ◽  
Vol 42 ◽  
Author(s):  
Boris Kotchoubey

Abstract Life History Theory (LHT) predicts a monotonous relationship between affluence and the rate of innovations and strong correlations within a cluster of behavioral features. Although both predictions can be true in specific cases, they are incorrect in general. Therefore, the author's explanations may be right, but they do not prove LHT and cannot be generalized to other apparently similar processes.


Sign in / Sign up

Export Citation Format

Share Document