76 



MAEYLAXD AGEICrLTrRAL EXPERIMENT STATION. 



The Pexxstltaxia Soldier Beetle. — KChauiii\^nathus pentisyl- 

 ta/«V//j De Geer. > This is a 





Fig. 4.— r^^p/ioru* bOineaf II.*: a. 



little vellowisli beetle (Fig. 3, /,) with 

 ■ iuore or less black tipon its 

 wing-covers and ti|X)n the thorax, 

 abundant on almost all ix>llen-bear- 

 ing flowers: but while the beetle is 

 V pollinivorous, the larva is carnivor- 

 ous and devours the apple worm 

 ^ either within the apple or while it 



f^?:. 3 —Oiaul\iy}nat'h\ii pennsylraniem: a. is Srettinof readv tO spiu U]>. The 

 larva, natural size: h. bead and fli-st segment "" *" • !• •-> -u ^i • 



of same eularsred : e. labium: d. labrnm: e. accompauving hgure ( 3 ) shows thlS 



dlbj/" i-^iLS-?"^' ^' ^^^^^^'- "• ^^" "i^ii- insect in the larva state at a and 



the adult at i. the other figures indicating details of the larval structure. 



The Two-lixed Soldier Beetle. —This is an allied species belonging 



"^ ^ ^^^ ^ ^'' ^^"^'^^r genus and known entomologi- 



LVj' ^^^ 'S chilly as Tdiphorus biliiuatus Say. Here 



""' " - also it is the larva which preys upon the 



apple worm. Figure -i. shows it in natural 



size at a. its head and two thoracic segments 



at b. enlarged, and the beetle natural size 



at c. The larva, like the preceding, is of a 



ItS^edf'c'toago?^^^ "*' ^^"'^rich, velvety-brown and black color, the 



beetle having brown and black wing covers and reddish-yellow thorax, the 



latter having two short black longitudinal marks, from which the insect 



takes its name. 



In the Fourth Eeport on the Insects of Missouri. ISTl, I called at- 

 tention to the fact that the principal bird enemies of the Codling Moth 

 are the Creepers, Black-capped Titmouse, the Powny Woodpecker, the 

 Blue Bird and the Crow Black Bird. In the Fifth Eeport of the same 

 t ^ _ series I descri1>ed and figured 



^« ** two true parasites. The Ring- 

 legged Rmpla 1 Pimpla antiu- 

 iipcs. Br., I and the Delicate 

 Long Sting, i yfacrocefitms deli- 

 catui Cress., • and there men- 

 tioned the fact that a species 

 of Hair-snake or Hair-worm, 

 {Meruiis acuminata^, also in- 

 fests the larva- All of these 

 insects are found in Marvland. 



SK\^- 9-—T(nibrioid£f eortKoli^. j. larva: e. itsman- T Ivivp -lUn fnmirl a npr-nli-ir 

 dibit-: d. antenna: c. under side of head: f. thetw.- ^ "'*^*^ '*^-'-' Ioiiu<^ ^ peculiar 

 horn^ anal plate: h. the beetle: h. its antenna: i, larva of another Beetle, i 7>«^- 

 mandiole: g. labium and its palpi: J. one of the ■ -j ^. ,. -i— - 



maxiUa and its palpus. fncides corticalis, riST O ». prey- 



ing up.^n the larva^. while Dr. LeBaron. . Fonrth Report as Illinois State 

 Entomologist, p. 6-t i, records the simie hiibit of the same species and Mr. 

 C. D. Zimmermann records a similar habit, on the part of the larva of 



T. laticoUis. KCafuxdian Entomologist. 1ST8, p. 60 >. In Euroi>e three 



